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511 results about "Sodium tartrate" patented technology

Sodium tartrate (Na₂C₄H₄O₆) is used as an emulsifier and a binding agent in food products such as jellies, margarine, and sausage casings. As a food additive, it is known by the E number E335. Because its crystal structure captures a very precise amount of water, it is also a common primary standard for Karl Fischer titration, a common technique to assay water content.

Octreotide acetate freeze-dried combination for injection and preparation method thereof

ActiveCN102526700AImprove stabilityConvenient transportation and distributionPeptide/protein ingredientsDigestive systemSodium bicarbonateSolubility
The invention provides an octreotide acetate freeze-dried combination for injection, which comprises octreotide acetate, mannitol and a proper amount of buffer substances, wherein the mass ratio of the octreotide acetate to the mannitol is 1:(450-500); and the buffer substances are lactic acid and sodium bicarbonate and can be tartaric acid and sodium tartrate. The invention also provides a preparation method of the composition. The composition provided by the invention is produced by adopting an aseptic technique; by striving to make the technological breakthrough in optimal pH range and optimal preparation temperature in a liquid medicine preparation process, the product stability is improved; and finally, a freeze-dried product is prepared. By adopting a quick-freezing mode for pre-freezing, a finished product has low related substance content and good re-solubility, can be preserved at room temperature for two months and can be refrigerated for two years, thereby facilitating the product transportation and delivery. By clinically matching with a solution, the combination has good stability and low local injection irritation. The invention provides a safe and effective octreotide acetate freeze-dried combination for injection, which has good and controllable quality, for clinics.
Owner:西藏嘉信景天药业有限公司 +1

Compound chloride-based environment-friendly snowmelt agent

The invention relates to a compound chloride-based environment-friendly snowmelt agent, which comprises a main component of a chloride mixture of calcium chloride dihydrate and magnesium chloride hexahydrate, contains various additives of sodium citrate, disodium hydrogen phosphate, sodium metasilicate, urea and the like and can contain abscisic acid or indoleacetic acid or a mixture thereof, sodium tartrate, humic acid or a salt thereof. The snowmelt agent in the invention can reduce the corrosivity to a metal object and a concrete structure effectively, improves the anti-salinization capabilities of a seed, a plant and soil, can be used when the temperature is as low as -25 DEG C, and solves the problems of bad snow melting effect caused by an autologous freezing point characteristic when a sodium chloride-based snowmelt agent is used and high cost caused by using an anhydrous calcium chloride-based snowmelt agent under the condition. The invention also provides a use method of the snowmelt agent, which places the main component and each additive separately without preparing a finished product of the snowmelt agent in advance and compounds the snowmelt agent on the spot before using. The method can avoid the problems of wetting, hardening and the like of the finished product of the snowmelt agent in the processes of storing and transporting, can avoid the defects of high-temperature energy consumption in the process of preparing compound granules (such as coating and granulating) and the capability of causing decomposition of the additives, has simple operations and a low cost, and is particularly suitable for on-site mechanical shed work.
Owner:CHINA ACAD OF TRANSPORTATION SCI +1

Low-corrosion and high-efficiency chlorine salt deicing agent and preparation method thereof

The invention discloses a low-corrosion and high-efficiency chlorine salt deicing agent, which is prepared from the following raw materials in percentage by mass: 85%-98% of sodium chloride, 1%-10% of a corrosion inhibitor and 1%-5% of an adjuvant, wherein the corrosion inhibitor is prepared from sodium silicate, disodium hydrogen phosphate, sodium tartrate and sodium citrate; and the adjuvant is prepared from sodium humate, urea and heteroauxin. Silicate in the corrosion inhibitor disclosed by the invention can form a protective film on the metal surface to avoid corrosion to metal caused by chlorine salt and synergistic effect of disodium hydrogen phosphate and sodium silicate; the corrosion inhibition effect is enhanced; a chemical adsorption layer is formed by coordinated complexation of polar radical of sodium citrate and sodium tartrate donor and a metal surface; a dual-electric layer structure is formed on the metal surface; a drainage layer is formed by nonpolar radical directional arrangement; chemical corrosion of metal is prevented; and the damages to soil and plants can be reduced by urea, sodium humate and heteroauxin. The preparation method disclosed by the invention is simple, mild in condition, available in raw materials, and easy to put into industrial application, and can be carried out under normal temperature and pressure.
Owner:黄山九星环保科技股份有限公司

Rare earth-nickel-cobalt-boron multi-element alloy anticorrosion and wear-resistant plating, electroplating liquid and preparation method of electroplating liquid

The invention provides a rare earth-nickel-cobalt-boron multi-element alloy anticorrosion and wear-resistant plating, an electroplating liquid and a preparation method of the electroplating liquid. The plating is of an amorphous mingled nanocrystalline structure, and the microhardness of the plating is HV700-HV1300; and the plating comprises the following components by weight percent: 1wt%-40wt% of cobalt, 0.1wt%-1.5wt% of boron and the balance of nickel and trace rare earth. The electroplating liquid comprises the following components: 180-250g/L of nickel sulfate, 20-50g/L of cobalt sulfate, 30-60g/L of nickel chloride, 2-4g/L of dimethylamine-borane, 30-50g/L of boric acid, 0.001-2g/L of rare earth, 3-5g/L of sodium tartrate, 10-30g/L of sodium citrate or citric acid, and deionzied water which is added to achieve a metered/constant volume. The preparation method of the electroplating liquid comprises the following steps: dissolving nickel sulfate, cobalt sulfate, boric acid and nickel chloride with the deionized water and regulating the pH value; and adding sodium citrate or citric acid, sodium tartrate, rare earth and dimethylamine-borane for the constant volume and sufficiently stirring. The preparation method of electroplating liquid is simple to operate, is high in current efficiency and energy-saving and environmentally-friendly; and the plating is of the amorphous mingled nanocrystalline structure, and has bright, smooth and flaw-free appearance, extremely low porosity, high hardness and good anticorrosion and wear-resistant properties and comprehensive mechanical properties.
Owner:黄激扬

Preparation and application of adsorbing agent of pseudo-boehmite and gamma-Al*O* hollow microspheres

The invention discloses a preparation method and an application of an adsorbing agent of pseudo-boehmite and gamma-Al2O3 (nuclear shell) hollow microspheres. The method comprises the following steps: dissolving aluminum sulfate, ammonium alum and aluminum potassium sulfate or a mixture thereof in an arbitrary proportion in distilled water; then respectively adding a certain quantity of urea and sodium tartrate; after the mixture is stirred uniformly, transferring the mixture into a hydrothermal kettle to carry out hydrothermal processing; and respectively obtaining the pseudo-boehmite and the gamma-Al2O3 (nuclear shell) hollow microsphere products after hydrothermal products are naturally cooled, filtered, washed, dried in vacuum and roasted. The method has simple process, moderate condition and good ruggedness of the (nuclear shell) hollow microsphere structure. The prepared pseudo-boehmite/gamma-Al2O3 hollow microspheres have excellent adsorption performance, particularly have good adsorption and purification effects on organic dye such as Congo red in waste water, and the like and hard degraded organic matters such as phenol, and the like and can be regenerated and recycled for many times, and regenerated products have the performance of adsorbing organic pollutants.
Owner:WUHAN UNIV OF TECH

Multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes and method for producing multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes

InactiveCN104450307AQuick washElimination of organophosphorus pesticide residuesNon-surface-active detergent compositionsSodium bicarbonatePesticide residue
The invention discloses a multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes. The cleaning agent comprises purified water, a composite chelating agent, an anti-deposition agent, a composite enzyme preparation, a composite builder and a composite plant extraction liquid, wherein the composite chelating agent comprises EDTA-2Na and sodium tartrate, the composite enzyme preparation comprises alkaline proteinase, lipase, amylase and cellulose, the composite builder comprises citric acid, sodium hydroxide and sodium bicarbonate, and the composite plant extraction liquid comprises an onion extraction liquid, a garlic extraction liquid, a ginger extraction liquid, a dark tea extraction liquid, a Chinese honeylocust fruit extraction liquid and a soapberry pericarp extraction liquid. The multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes can avoid secondary environment pollution generated by surfactant residues, damage to human health caused by residues of organic pesticides and the like, not only can be used for cleaning and degerming vegetables and fruits and removing the residues of pesticides, but also can be used for cleaning and sterilizing dishes; and the multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes and the method for producing the multipurpose surfactant-free cleaning agent for fruits, vegetables and dishes have the advantages of less investment, easy availability of the raw materials, simple and convenient production, high cleaning rate, wide application range, and are beneficial for environment protection and human health.
Owner:王先军

Preparation method of Fe-MCM-41 molecular sieve with high iron content

The invention relates to a preparation method of a Fe-MCM-41 molecular sieve with high iron content. The preparation method comprises the following steps: through a hydrothermal synthesis method, based on sodium tartrate (TA) as a chelant of iron ions, cetyltrimethylammonium bromide (CTAB) as an organic template and tetraethoxysilane as a silicon source, stirring for 30-120 minutes, regulating the pH value to 7-11 with inorganic base, and then stirring for 2-6 hours, wherein the molar ratio of CTAB to SiO2 is 0.1-0.25, the molar ratio of TA to SiO2 is 0.05-0.6, and the molar ratio of H2O to SiO2 is 70-150; and then crystallizing for 48-120 hours under the self-boost pressure and hydrothermal conditions at the temperature of 90-130 DEG, cooling the purified product to room temperature, carrying out vacuum filtration, washing to be neutral, drying, continuously raising the temperature to 500-600 DEG C at the speed of 1 DEG C / min and insulating for 5 hours. By using the method, the iron ions can be directly introduced to a skeleton so as to prepare the mesoporous molecular sieve with the iron content of 7wt%-14wt%, the molecular sieve has a uniform aperture, the specific surface area of the molecular sieve is 700-1200 m<2> / g<-1>, and the pore volume of the molecular sieve is 0.7-3.0 cm<3> / g<-1>.
Owner:BEIJING UNIV OF CHEM TECH

Environment friendly type snow melt agent

The invention relates to an environment friendly type snow melt agent, which comprises sodium chloride serving as a main component and various additives of sodium citrate, sodium dihydrogen phosphate, sodium metasilicate, urea, sodium carboxymethyl cellulose and the like, and may also comprises abscisic acid or indolylacetic acid or mixture thereof, sodium tartrate and humic acid or salt thereof. The snow melt agent of the invention has a high snow melt capacity and a wide application temperature range, is particular suitable for the ambient temperature of no less than 15 DEG C below zero and economy and environmental protection, and can effectively reduce the corrosion on metalized products and a concrete structure and effectively improve the anti-sallification ability of seeds, plants and soil. The invention also provides a method for using the snow melt agent. In the method, the finished product of the snow melt agent is unnecessarily prepared in advance, instead the main component and various additives are separately placed, and the snow melt agent is prepared in a construction site before using; therefore, the method can avoid the problems that the snow melt agent is wetted and hardened during storage and transportation, and also overcome the defects of high temperature energy consumption and possibly caused decomposition of additives in a process of preparing composite particles(such as coating granulation). The snow melt agent is simple in operation and low in cost and particularly suitable for mechanized spraying operation.
Owner:CHINA ACAD OF TRANSPORTATION SCI +1

Environment-friendly anodic oxidation pretreatment process

The invention belongs to the technical field of surface processing, specifically relates to an environment-friendly anodic oxidation pretreatment process, and aims to improve the environment-friendliness and reduce the etching property on the matrix. The process orderly comprises the following steps: oil removing with an organic solvent, oil removing with a chemical method, bright dipping, alkaline etching, and bright dipping; wherein the formula of the bright dipping solution comprises the following components: sulfuric acid with a concentration of 230 to 270 g / L and potassium permanganate with a concentration of 0.8 to 1.2 g / L; and the formula of alkaline etching solution comprises the following components: sodium hydroxide with a concentration of 50 to 60 g / L, and one component with a concentration of 0.1 g / L to 0.5 g / L selected from sodium citrate, sodium tartrate, or sodium gluconate. The pretreatment process adopts low density alkali and an alkaline etching agent as the alkaline etching liquid, and low density sulfuric acid and an oxidant as the bright dipping liquid, and solves the component selection problem of alkaline etching agent and oxidant. The process has a low etching effect on aluminum materials, can remove the uneven passive film on the surface, and effectively avoid the over-etching phenomenon caused by alkaline washing and severe alkaline smog overflow.
Owner:BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP

Method for measuring zinc and nickel contents in zinc-nickel alloy electroplating solution

The invention relates to a method for measuring zinc and nickel contents in a zinc-nickel alloy electroplating solution and belongs to the technical field of methods for analyzing the electroplating solution. The method is mainly and technically characterized by comprising the following steps of: reacting dimethylglyoxime and Ni4+ to form a red soluble complex in the presence of an oxidant ammonium persulfate, adding sodium tartrate to eliminate iron and other impurity interference, and measuring the content of nickel in the zinc-nickel alloy electroplating solution by employing a colorimetric method; adding tartaric acid to mask iron and other impurities, with CuY-PAN as an indicator, titrating in an acetic acid-sodium acetate buffer solution with the PH being 5.5 by using an ethylene diamine tetraacetic acid (EDTA) standard titration solution by utilizing a replacement titration principle, calculating the total contents of zinc and nickel in the zinc-nickel alloy electroplating solution, and subtracting the nickel content from the total contents of zinc and nickel to solve the zinc content in the zinc-nickel alloy electroplating solution. The measurement method has the characteristics of simpleness in detection, convenient, rapid and environment-friendly detection process, low cost, accurate and consistent detection result and the like.
Owner:江南工业集团有限公司

Environment-friendly snow melt agent

The invention relates to an environment-friendly snow melt agent. The snow melt agent uses anhydrous calcium chloride as a main component, contains various additives such as sodium citrate, sodium dihydrogen phosphate or disodium hydrogen phosphate, sodium metasilicate and urea, and also contains abscisic acid or indolylacetic acid or a mixture thereof, sodium tartrate, humic acid and salt thereof. The snow melt agent can effectively reduce corrosivity to metal objects and concrete structures, and effectively improve salinization resistance of seeds, plants and soil. The snow melt agent can quickly melt accumulated snow or ice due to snowstorms when temperature drops to minus 25 DEG C or even minus 50 DEG C in serious cold areas with a small amount and good effect. The invention further provides a use method of the snow melt agent. In the method, the main component and various additives are kept separately without preparing a finished snow melt agent in advance, and combined on site before use. The method can help prevent the problems of dampness, hardening and the like during storage and transport of the finished snow melt agent, and the defects of high temperature energy consumption and possible additive decomposition during the preparation of compound granules (for example, coating and pelleting). The snow melt agent has the advantages of simple operation and low cost, and is especially applicable to field mechanical throwing operation.
Owner:CHINA ACAD OF TRANSPORTATION SCI +1
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