183 results about "Sodium benzoate" patented technology

This invention relates to the field of water treatment technology, specifically to a reverse osmosis membrane cleaning agent composed of a non-oxidizing bactericide and an enzyme, and its application. Its main purpose is to remove biofouling from reverse osmosis membranes and restore membrane flux. This patent discloses a novel reverse osmosis membrane cleaning agent formulation. Considering the different pH requirements of the cleaning agent in actual production, different types of bioactive hydrolytic enzymes are selected to disrupt the structure of bacterial cell walls and their extracellular polymers. A reducing agent and a non-oxidizing bactericide are combined to enhance the cleaning effect of the reverse osmosis membrane. For different cleaning purposes, non-oxidizing bactericides suitable for acidic and alkaline cleaning are formulated. Sodium benzoate and benzalkonium chloride show good application prospects in the removal of reverse osmosis membrane fouling.

The invention relates to a detergent tablet comprising from 5 to 20 percent by weight citric acid or a salt thereof and from 3 to 25 percent by weight sodium benzoate and a surfactant. The invention also relates to a method of forming a wash liquor by combining a detergent tablet with water in a container. The invention also relates to the use of a detergent tablet to create a washing liquor for cleaning surfaces.

The invention discloses a preparation for promoting efficient yield increase and tree cultivation of rubber trees. The invention belongs to the technical field of rubber tree planting, and the preparation comprises CMC-Na, Yitenling, a Nobawen chelating nutrient solution, boron hydroxide, sodium benzoate, melissyl alcohol, 14-sterol and other components, the concentration of each component is optimally designed, and the components are uniformly prepared through special stirring equipment; when in use, the preparation is smeared on a secant of a rubber tree, the latex yield can be remarkably increased, the dead skin rate is reduced, and the dry glue content is increased by continuous use; the problems that the yield increasing effect of rubber trees is limited and maintenance is insufficient are solved through scientific matching and synergistic effect, the method has the advantages of being wide in raw material source, controllable in cost and easy and convenient to operate, is suitable for large-scale popularization, and provides powerful support for sustainable development of the natural rubber industry.

Disclosed is a method of reducing fine lines or wrinkles on skin. The method can include applying a topical skin care composition to skin with fine lines or wrinkles. The composition can include lactobacillus ferment, ascorbyl glucoside, Terminalia ferdinandiana fruit extract, Helianthus annuus (Sunflower) seed extract, glycerin, Persea gratissima (avocado) oil, Butyrospermum parkii (shea) butter, coco-caprylate / caprate, Sclerotium gum, sodium benzoate, and tocopherol.

The invention discloses a traditional Chinese medicine mixture with a liver and kidney tonifying effect and a preparation method thereof, and belongs to the field of pharmaceutical preparations. The traditional Chinese medicine mixture comprises the following components in parts by weight: 45-60 parts of polygonum multiflorum; 45-60 parts of rhizoma polygonati; 110 to 130 parts of fructus rosae laevigatae; 2.4 to 3.2 parts of Chinese angelica; 45-60 parts of rhizoma cibotii; 3.2 to 3.8 of semen cuscutae; 1.8-2.4 parts of dried orange peel; 3.5 parts of fructus psoraleae; the preparation method of the traditional Chinese medicine mixture comprises the following steps: decocting the components in water, filtering, concentrating filtrate until the density is 1.10-1.16 g / mL, adding ethanol until the alcohol content is 60%, standing for 24 hours, taking supernate, filtering, and recovering the filtrate under reduced pressure until no alcohol exists; adding water to 120 parts by weight, adding 2 parts by weight of talcum powder and 1 part by weight of sodium benzoate, uniformly stirring, and standing for 24-48 hours; taking supernatant liquid, adding 120-150 parts by weight of cane sugar, adding water to 300-350 parts by weight, uniformly stirring, boiling, standing and filtering to obtain filtrate, namely the product mixture. Eight medicines of the traditional Chinese medicine mixture are applied dialectically, and complement each other in tonifying liver and kidney, invigorating spleen and replenishing qi, arresting seminal emission and arresting enuresis.

An oral liquid suspension comprising atomoxetine or a pharmaceutically acceptable salt thereof is disclosed, formulated at a concentration of about 20 mg / mL for the treatment of attention-deficit / hyperactivity disorder (ADHD). The suspension includes a dual preservative system (methylparaben and sodium benzoate), sweeteners, pH buffers, suspending agents, co-solvents, flavorants, and colorants. The composition demonstrates bioequivalence to Strattera® capsules, robust antimicrobial efficacy meeting USP <51> criteria, and physicochemical stability over 24 months in validated high-density polyethylene containers with child-resistant closures. The 20 mg / mL concentration enables precise dose titration for pediatric and dysphagic patients. Palatability is optimized through validated flavor masking studies, supporting high patient adherence. The invention further provides scalable manufacturing methods, quality control specifications, and methods of use for treating ADHD, offering a stable, safe, and patient-friendly alternative to solid oral dosage forms.

A pharmaceutical composition containing high concentrations of opiranserin is disclosed. More specifically, the pharmaceutical composition contains opiranserin or a pharmaceutically acceptable salt thereof, a carrier selected from sodium benzoate, trisodium citrate, sodium salicylate, and mixtures thereof, and an injectable solvent.

A process for preparing a supramolecular carrier photosensitizer for photodynamic therapy and a formulation thereof is disclosed for prevention, treatment, anti-inflammatory and sterilization of oral dental diseases. Supramolecular carrier consists of refined lignin, glucomannan, cysteine, and sodium benzoate at a mass ratio of 0.1-1.0%: 0.5-3%: 0.1-0.5%: 0.05%, and the balance of water. Aqueous solutions of refined lignin, glucomannan, cysteine and sodium benzoate are prepared, and a pH value of combined solution is adjusted to 6.5, so that dissolved alkali lignin is precipitated to form an efficient and stable three-dimensional polymer network skeleton, and rich hydrogen bonds are facilitated to be formed between the same molecules and different molecules of lignin and glucomannan, thereby forming a supramolecular carrier formulation loaded with the photosensitizer. It ensures long-term storage stability of physicochemical traits of formulation, which is conducive to rapidly promoting application of PDT in anti-inflammatory and sterilization treatment of oral dental diseases.

The present disclosure discloses a composition for hair growth comprising Larix europea wood extract, Camellia sinesis leaf extract, Pisum sativum sprout extract, Curcuma longa (Turmeric) callus conditioned media, Hamamelis virginiana (Witch Hazel), Rosmarinus officinalis Leaf Oil, Glycerin, Glycine, Zinc Chloride, Sodium Metabisulfite, Gluconolactone, Sodium Benzoate, Calcium Gluconate, Tetrasodium ethylenediaminetetraacetic acid (EDTA), Saccharide Isomerate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Propanediol, Biotinoyl Tripeptide- 1, Alpha Glucosyl Hesperidin, Caffeine, Hydrolyzed Pea Protein, Polyalkylene Glycol Mono Butyl Ether, Acrylates / C 10-30 Alkyl Acrylate Crosspolymer, Panthenol, Niacinamide, Arginine, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, Phenoxyethanol, and water is added to the composition until the desired volume is achieved. A method for preparing the composition for hair growth is also provided.

The invention discloses an artificial feed for efficient propagation of low-age larva parasitic wasps of prodenia litura. The artificial feed is prepared from the following raw materials: agar powder, soybean meal, sweet potato vines with leaves, yeast powder, wheat germs, sodium benzoate, vitamin C, multivitamins, linseed oil, chlortetracycline hydrochloride soluble powder and the like. The artificial feed is used for feeding 2-5-year-old prodenia litura larvae parasitized by parasitic wasps, and the pupation rate and eclosion rate of the parasitic wasps can both exceed 93%.

The application relates to the technical field of degradable materials, and discloses a high-mechanical-property PLA degradable composite material and a preparation method thereof.The high-mechanical-property PLA degradable composite material comprises the following raw materials in parts by weight: 60-80 parts of PLA resin, 15-30 parts of PBS resin, 5-12 parts of Chinese pine powder, 10-15 parts of polycaprolactone, 0.1-3 parts of a modified toughening agent, 0.2-1 part of a modified light stabilizer, 0.1-1 part of antioxidant 1010, 1.5-3 parts of glycerol tristearate, 0.1-0.5 parts of sodium benzoate and 0.1-0.5 parts of silane coupling agent KH-550.The modified toughening agent improves the impact strength and flexibility of the material, and further widens the application scene of the material; the modified light stabilizer enhances the ultraviolet aging resistance of the material, and meanwhile, the material retains excellent degradable characteristics and can be efficiently degraded in a natural environment after being discarded.

Lime-incorporated chitosan (LCh) beads are a non-toxic, environmentally friendly, and efficient preservative for food products, showcasing their superiority in microbial control, alcohol inhibition, color retention, and maintenance of physicochemical parameters. The all-natural LCh beads described here exhibit an on-par preservation performance with synthetic sodium benzoate at its maximum permissible limit in fruit juices. Additionally, the LCh beads offer the unique advantage of reusability, maintaining their preservation efficacy over multiple fruit juice preservation cycles, contributing to economic and environmental sustainability. The all-natural and biodegradable LCh beads exhibit comparable or superior preservation performance to synthetic preservatives like sodium benzoate at its maximum permissible limit in fruit juices. In light of the growing concerns about the harmful effects of synthetic preservatives, LCh beads present an eco-friendly and biocompatible solution, aligning with the increasing consumer demand for fresh and safe foods without chemically synthesized additives.

The invention relates to the technical field of mouthwash, in particular to natural plant extract mouthwash and a preparation method thereof. The natural plant extract mouthwash is prepared from the following components in percentage by mass: 10 to 12 percent of citrus aurantium flower hydrolat, 6 to 8 percent of Hangzhou white chrysanthemum hydrolat, 5 to 7 percent of honeysuckle flower hydrolat, 4 to 5 percent of jasmine flower hydrolat, 4 to 5 percent of herba eupatorii hydrolat, 3 to 5 percent of glycerinum, 1 to 2.5 percent of enzyme microencapsulated powder, 0.5 to 0.8 percent of capryloyl hydroximic acid, 0.4 to 0.6 percent of ethylhexylglycerin, 0.1 to 0.2 percent of sodium benzoate, 0.05 to 0.1 percent of dipotassium glycyrrhizinate and 53.8 to 66.05 percent of pure water. The natural plant extract mouthwash provided by the invention has efficient cleaning and nursing effects and excellent stability, effectively solves the problems that enzyme active components are easy to inactivate in a liquid environment and short in storage period through an enzyme microencapsulation technology, realizes long-acting antibacterial and dental plaque decomposition effects, and has the advantages of no side effect, no side effect, no toxic or side effect and the like. Meanwhile, the five kinds of plant hydrolats are compounded, so that the product is endowed with fresh and pleasant plant fragrance and pleasant use experience, and mild antibacterial, anti-inflammatory and soothing effects on the oral cavity are achieved through natural active substances contained in the plant hydrolats.

The invention provides a moisturizing dust suppressant and a use method thereof, and relates to the technical field of dust suppression. The moisturizing dust suppressant is prepared from the following raw materials in percentage by mass: 18 to 43 percent of glycerol, 0.1 to 0.6 percent of guar gum, 3 to 8 percent of magnesium sulfate, 0.1 to 0.3 percent of sodium dodecyl benzene sulfonate, 1 to 3 percent of sodium benzoate and the balance of water, wherein the mass of the raw materials is 100 percent. The use method comprises the following steps: selecting the spraying concentration of the moisturizing and dust suppressing agent according to the road condition of a target road, and selecting the nozzle type of the spraying facility for spraying according to the spraying requirement; the road conditions comprise municipal roads and slag roads; the spraying requirement comprises the spraying area or the spraying uniformity of the spraying operation. According to the moisture-preserving dust suppressant, the dust concentration is remarkably reduced, the safety of an operation environment is improved, and the loss of coal resources is reduced. In addition, by means of the spraying method, the use efficiency and economic benefits of the dust suppressant are remarkably improved, and the problem that a traditional spraying mode is poor in effect in a complex application scene is effectively solved.

The invention discloses a buccal element as well as a preparation method and application thereof, and belongs to the technical field of oral cleaning supplies. The method comprises the following steps: firstly, adding 2.8 to 3.5 parts of glacial acetic acid, 0.005 to 0.015 part of sodium benzoate, 0.005 to 0.015 part of sodium cyclamate, 0.08 to 0.12 part of lactic acid and 0.04 to 0.06 part of citric acid into 100 parts of water, and mixing to form acetic acid mother liquor; then, putting 3.7-4.6 parts of sodium bicarbonate and 0.08-0.12 part of calcium carbonate into a container, adding the acetic acid mother solution into the container, and stirring to form a mixed solution; adjusting the pH value of the mixed solution to 6.8-7.2, then sequentially adding 0.08-0.12 part by weight of lovastatin, 0.02-0.04 part by weight of peppermint water and 0.08-0.12 part by weight of a clove extracting solution, and uniformly stirring, so as to obtain the traditional Chinese medicine composition. The method disclosed by the invention is simple, and the prepared buccal essence is non-toxic and non-irritant, is high in decayed tooth inhibition rate and can quickly relieve decayed tooth pain and dentin hypersensitivity.

The invention belongs to the technical field of fuel additives and clean energy. The invention provides a fuel oil additive, which is prepared from 40 to 60 parts of fatty acid ester, 10 to 20 parts of alcohol ether compounds, 1 to 3 parts of nanometer oxides, 2 to 4 parts of surfactants, 1 to 2 parts of oxidation stabilizers, 2 to 3 parts of sodium benzoate, 1 to 2 parts of 2, 6-dimethyl pyridine, 0.5 to 1 part of metal organic catalytic combustion improvers and 20 to 30 parts of solvent oil. The fuel additive can significantly improve the fuel combustion efficiency, reduce the fuel consumption, reduce the emission of CO, HC, NOx and soot, and improve the combustion stability and storage performance. The additive selects part of bio-based raw materials, has the characteristics of energy conservation, emission reduction, greenness and low carbon, is suitable for the field of combustion-supporting modification of gasoline, diesel oil and biofuel, and has good environmental benefits and application prospects.

The invention discloses a sargassum pallidum polypeptide oral liquid and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The oral liquid comprises sargassum pallidum polypeptide as a main drug, xylitol, anhydrous citric acid and beta-cyclodextrine as flavoring agents, sodium benzoate as a preservative and purified water as a solvent. The preparation method comprises the following steps: dissolving sargassum pallidum polypeptide in part of purified water, sequentially adding other auxiliary materials, stirring, centrifuging, fixing the volume, and uniformly mixing. Through single factor and orthogonal test optimization, the optimal prescription ratio is determined, the sensory quality of the oral liquid is remarkably improved, and the oral liquid has good stability. The product is appropriate in taste, unique in flavor, simple and convenient in preparation process and suitable for industrial production.

A patch composition for targeting herpes virus comprising the following ingredients: a patch base, trisodium phosphate, malic acid, sorbitol, sodium benzoate, cellulose gum, peppermint, sodium saccharin, naringin, wind wheel grass extract, xanthan gum, polyethylene glycol-8, calcium carbonate, hydroxyethyl cellulose, hydroxypropyl guar gum, sodium nitrate, hydrated silica, sodium lauryl sulfate, strontium chloride hexahydrate, tranexamic acid, two-faced needle extract, sodium monofluorophosphate, sea salt, potassium nitrate, sodium chloride, and purified water q.s.

This invention discloses a method for the continuous synthesis of benzoic acid from sodium benzoate mother liquor, comprising the following steps: (1) continuously pumping sodium benzoate mother liquor into a high-temperature acidification kettle, adding hydrochloric acid dropwise, controlling the pH value to 1~2, and the reaction temperature to 97~100℃; (2) overflowing the acidification mother liquor into a cooling kettle #1 to reduce the temperature to 70~80℃; (3) overflowing part of the acidification mother liquor in the cooling kettle #1 into a dispersion kettle as a dispersion mother liquor, and overflowing part of the acidification mother liquor into a cooling kettle #2; reducing the temperature to below 40℃; adding crude benzoic acid to the dispersion kettle to increase the concentration of benzoic acid, and then returning it to the high-temperature acidification kettle; (4) centrifuging the acidification mother liquor in the cooling kettle #2 into a centrifuge and then discharging it into a crude benzoic acid buffer tank, part of the crude benzoic acid into the dispersion kettle, and the remaining crude benzoic acid dried and discharged to obtain the finished benzoic acid. This invention utilizes continuous high-temperature acidification of sodium benzoate mother liquor and increases the concentration of benzoic acid during high-temperature acidification, resulting in high-quality benzoic acid with high production efficiency.

The invention discloses a mosquito luring agent gel composition as well as a preparation method and application thereof, and relates to the technical field of daily chemical industry. The composition provided by the invention has a gel dosage form and comprises a gel matrix and a long-acting mosquito-luring component, the long-acting mosquito-luring active component is mainly tea-flavor ketone, meanwhile, sodium benzoate is added to be compounded with the tea-flavor ketone, and the sodium benzoate can realize slow release of the tea-flavor ketone through intermolecular interaction with the tea-flavor ketone. Meanwhile, the introduction of sodium benzoate can also adjust the microstructure of the obtained gel, has important influence on the texture of the gel, and can improve the stability of the gel. Based on the introduction of sodium benzoate and the gel formulation, the water-retaining property of the gel and the slow release of tea flavor ketone are remarkably improved, the durability of mosquito trapping activity is prolonged, the mosquito trapping rate within 72 hours is stabilized to be 58% or above, the reduction degree is not higher than 27.5% compared with the mosquito trapping rate after 24 hours, and the gel has excellent large-scale application prospects.

The application provides a fluorapatite phosphate ore reverse flotation magnesium removal collector and application thereof, which comprises basic substances and water, and the basic substances are mixed according to the mass ratio, wherein the ratio of fatty acid soap, surfactant and additive is 11:3:2; the fatty acid soap is one or a mixture of two of sodium oleate, oxidized paraffin soap; the surfactant is one or any ratio of sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, sodium citrate, sodium acetate and sodium benzoate; and the additive is sodium naphthenate. The fluorapatite phosphate ore reverse flotation magnesium removal collector provided by the application can effectively separate apatite and dolomite, significantly improve the collecting capacity and selectivity by adding surfactants and additives, and the surfactant composition weakens the influence of Fe 3+ on the flotation system.

The invention discloses a preparation and quality control method of a traditional Chinese medicine lotion for treating leukoplakia vulvae, and relates to the technical field of preparation of leukoplakia vulvae lotions. The preparation and quality control method of the traditional Chinese medicine lotion for treating leukoplakia vulvae comprises the following steps: weighing fructus cnidii, cortex phellodendri, radix sophorae flavescentis, fructus kochiae, rhizoma anemarrhenae, cortex dictamni, herba artemisiae annuae, radix gentianae macrophyllae, radix paeoniae rubra, radix salviae miltiorrhizae and radix rehmanniae recen, crushing the medicinal materials, sieving with a 20-mesh sieve, preserving for later use, and extracting; putting the crushed medicinal materials into a dynamic extraction tank, carrying out multi-stage decoction, finally combining filtrate obtained after decoction, and carrying out concentration forming; and putting the combined filtrate into vacuum concentration equipment to obtain concentrated filtrate, adding 1% sodium benzoate, and uniformly stirring to obtain the white-removing and itching-relieving lotion. By optimizing the extraction process, the extraction rate of effective components is remarkably increased, the drug effect of the lotion is enhanced, the drug effect material basis is clear, clinical tests show that the total effective rate is increased to 89.3%, and the optimized process has remarkable advantages in the aspect of drug effect improvement.

The invention relates to the technical field of forest tree genetic breeding and plant reproduction regulation and control, and particularly discloses a black poplar and white poplar distant hybridization obstacle breakthrough method based on sodium benzoate treatment. According to the method, female flowers of black poplar are taken as a treatment object, a sodium benzoate aqueous solution with the final concentration of 5-15 mM (preferably 10 mM) is used for carrying out dipping treatment on the female flowers, and then poplar pollen pollination is carried out. After pollination, fixing, softening and aniline blue dyeing are carried out, and pollen germination and pollen tube growth conditions are observed. Experimental results show that the method can significantly promote the growth of the poplar pollen on the black poplar stigma, improve the ability of a pollen tube to penetrate through the stigma, and realize fertilization and hybrid embryo formation, thereby effectively breaking through the distant hybridization obstacle between different branches of the poplar. The method disclosed by the invention is simple and convenient to operate, low in cost and good in repeatability, provides an efficient and feasible technical means for distant hybridization breeding of poplars, and has a good popularization and application prospect.

The invention discloses a metallographic etchant and an austenitic stainless steel metallographic structure display method. The metallographic etchant comprises the following components in percentage by weight: 20 to 30 percent of tartaric acid, 2 to 6 percent of fumaric acid, 1.5 to 5.5 percent of sodium benzoate and the balance of deionized water, wherein the total mass of the tartaric acid, the fumaric acid and the sodium benzoate is 100 percent. The metallographic etchant is small in pollution, low in toxicity, free of volatility, small in harm to a human body in the preparation and erosion process, good in grain boundary erosion effect and small in grain influence, and the obtained metallographic contrast is clear, not prone to over-erosion and good in repeatability.

The invention belongs to the technical field of agricultural pest control, and particularly relates to a novel drosophila melanogaster attractant and a preparation method and application thereof. The invention discloses a novel drosophila melanogaster attractant which comprises the following components in percentage by mass: 10%-20% of brown sugar, 1%-5% of acetic acid, 1%-5% of ethanol, 1%-5% of phenethyl alcohol, 0.5%-2.0% of oleic acid, 0.1%-1% of palmitoleic acid, 0.1%-0.5% of sodium benzoate, 0.2%-0.5% of ascorbic acid, 0.2%-0.3% of sodium carboxymethyl cellulose, 0.5%-1.0% of sodium dodecyl benzene sulfonate and the balance of water. Field test results show that the novel drosophila melanogaster attractant is high in trapping rate of drosophila melanogaster on fruit crops, the used raw materials are low in price, the preparation process is simple, the dosage form is a liquid dosage form, field application is facilitated, the novel drosophila melanogaster attractant can be widely applied to prevention and control of field drosophila melanogaster, and the market prospect is good.

The invention provides a cough-relieving and phlegm-eliminating composition and a preparation method thereof. The cough-relieving and phlegm-eliminating composition is prepared from the following raw materials: anhydrous morphine, anhydrous codeine phosphate, apigenin, liquiritin, isoliquiritin, liquiritigenin, isoliquiritigenin, glycyrrhizic acid, trans-anethole, camphor and sodium benzoate. The composition further comprises a luffa stem extract, an atractylodes lancea rhizome extract and a radix ranunculi ternati bark extract. The cough-relieving and phlegm-eliminating composition provided by the invention has the advantages of few impurities, clear and remarkable drug effect and small side effect. Under the action of the core antitussive drug, three plant extracts of luffa stem, Atractylodes lancea and Ranunculus ternatus Thunb. Are creatively added, so that the phlegm eliminating capacity and the overall antitussive effect of the whole formula are remarkably enhanced. The cough-relieving and phlegm-eliminating composition disclosed by the invention realizes the synergistic interaction of '1 + 1 + 1gt, 3' on the core indexes of inhibiting the cough frequency, prolonging the cough latency period, promoting sputum excretion and the like, and realizes the cough-relieving and phlegm-eliminating effects of treating both symptoms and root causes through the multi-target-point and multi-mechanism synergistic effect.

The application discloses a propiconazole-azoxystrobin- clothianidin seed treatment suspending agent and a preparation method and application thereof, and belongs to the technical field of pesticide preparations; the agent takes propiconazole, azoxystrobin and clothianidin as active ingredients, takes beta-nicotinamide mononucleotide (NMN) as a functional antimicrobial component, and is supplemented with styrene-maleic anhydride copolymer sodium salt, fatty alcohol polyoxyethylene ether, xanthan gum, magnesium aluminum silicate, glycerol, polydimethylsiloxane defoaming agent, sodium benzoate, polyvinyl alcohol and deionized water to prepare the agent. The application is suitable for seed coating treatment for preventing and treating rice false smut, thrips and wheat sharp eyespot and aphids; NMN promotes the accumulation of phenolic compounds in the phloem of plants, and cooperates with clothianidin on the same insecticidal target, thereby significantly improving the prevention and treatment effect on aphids and thrips; the degradation product of NMN promotes the proliferation of beneficial microorganisms in the rhizosphere, improves soil enzyme activity, and realizes soil micro-ecological restoration.

This invention proposes a magnetic material coating stripping agent and its preparation and application methods, belonging to the technical field of stripping agents. It includes an aqueous solution and a powder. The aqueous solution is prepared from the following raw materials in parts by weight: 5-15 parts sodium phosphate, 0.5-2 parts sodium benzoate, 1-5 parts glycerol, 0.5-2 parts tributyl phosphate, 0.1-1 parts water-soluble defoamer BYK022, and 75-90 parts water. The powder is prepared from the following raw materials in parts by weight: 3-5 parts modified photocatalytic degradation agent, and 4-6 parts acid-loaded porous nano-calcium carbonate. This magnetic material coating stripping agent exhibits good coating stripping effect, acting more quickly and effectively between the coating layer and the magnetic substrate, reducing peel strength. It is virtually non-corrosive to the magnetic substrate material, easy to store and transport, has a long service life, and has broad application prospects.

A preparation method of xanthone belongs to the technical field of preparation of organic compounds, o-fluorobenzonitrile and phenol are used as raw materials, an alkaline substance potassium carbonate is added, 2-phenoxy benzonitrile is generated through reaction, and the product obtained through treatment is high in purity and white in color and can be put into the next step of reaction without column chromatography. Subsequently, 2-phenoxybenzonitrile and a sodium hydroxide solution are subjected to a heating reaction to generate 2-phenoxy sodium benzoate, the product is dissolved in water and acidized to obtain 2-phenoxy benzoic acid, and 2-phenoxy benzoic acid with high purity can be obtained through filtration. And adding a proper amount of concentrated sulfuric acid into the 2-phenoxybenzoic acid, carrying out heating reaction, pouring the reaction liquid into water, and carrying out suction filtration to obtain a white solid xanthone with the purity of 99%.

The invention relates to the technical field of shooting weapon maintenance technologies, and particularly discloses a composite water-based cleaning agent as well as a preparation method and application thereof. The water-based cleaning agent comprises the following raw material components in parts by mass: propylene glycol, ionic liquid, a surfactant, a chelating agent, a corrosion inhibitor, lipase, a defoaming agent and deionized water, wherein the ionic liquid is a choline chloride / glycerol deep eutectic solvent; the surface active agent is prepared from alkyl polyglucoside and cocamidopropyl betaine; the corrosion inhibitor comprises at least one of sodium benzoate or triethanolamine. All raw material components of the composite water-based cleaning agent are low-toxicity or non-toxic substances, most of the raw material components can be biodegraded, and the safety performance is high. The composite water-based cleaning agent provided by the invention has efficient cleaning performance and excellent environment-friendly safety characteristics, is still reliable and effective even under extreme conditions of high and cold, high temperature, high humidity and the like, and meets the requirements of green chemistry and military guarantee.