107 results about "Potassium bromate" patented technology

The invention discloses a bread improver without potassium bromate, a manufacturing method thereof and a flour product produced by using the bread improver. The bread improver contains Alpha-amylase, cellulase, hemicellulase, pentosan enzyme, lipase, glucose oxidase, an emulsifier, vitamin C, a thickening agent and a filling material, and the raw materials are evenly mixed, thus obtaining the finished products. The invention can increase the handing quality of the doughy effectively and the stability of the doughy in the ferment period, defer the ageing of the flour food effectively and augment the volume of the product, therefore the finished products have subtle organization.

The fruit and vegetable preserving backing consists of preferably: preservative 4-40 weight portions, physiological regulator 0-30 weight portions and gas regulator 0-30 weight portions. The preservative is one or two of 2-aminobutane, hydrochloride of 2-aminobutane, sulfate of 2-aminobutane, sodium pyrosulfite, potassium pyrosulfite, sodium bisulfite, potassium bisulfite, stable chlorine dioxide, propyl isothiocyanate, cinamic aldehyde and acetyldehyde; the physiological regulator is potassium permanganate and / or potassium bromate; and the gas regulator one or several of soda lime, sodium hydroxide, lime and active carbon. The present invention has the functions of reducing mechanical damage of fruits and vegetables, suppressing softening, yellowing and other senility symptoms of fruits and vegetables during storage and transportation, reducing rot of fruits and vegetables during transportation caused by vibration and pressure and regulating humidity inside the package.

The invention relates to a bismuth oxyhalide photocatalyst. According to a method for preparing bismuth oxyhalide photocatalyst, sodium bismuthate is used as the bismuth source, and sodium halide or potassium bromate or cetyl trimethyl ammonium chloride or halogenated cetylpyridinium or tetrabutyl ammonium halide is used as the halogen source; the halogen source is added into deionized water and mixed for 20 minutes for dissolution under the ultrasonic condition, and then sodium bismuthate is added into the halogen source for pH adjustment; the mixed solution is put into a reaction kettle for reaction, and the halogen source is marked as follows according to the bromine source: sodium halide (BiOBrNaBr), potassium bromated (BiOBrKBrO3), cetyl trimethyl ammonium chloride (BiOBrCTAB), halogenated cetylpyridinium (BiOBrCPB) and tetrabutyl ammonium halide (BiOBrTBB). The bismuth oxyhalide photocalyst is applied to visible light sensitization or degradation of rhodamine B (RhB) and salicylic acid (SA); the bismuth oxyhalide photocalyst has good stability and photocatalytic activity, and meanwhile, the preparation process is simple and the cost is low.

The invention relates to a method for identifying Chinese herbal medicine by using electrochemistry. The method comprises the following steps: pulverizing Chinese herbal medicine into powder, adding to a mixture (a finite concentration) of sulfuric acid, manganese sulfate, acetone and potassium bromate, and completely stirring to carry out a chemical oscillating reaction, thereby obtaining a mixed solution; transferring the mixed solution to an electrochemical working instrument with an oxidation-reduction electrode, starting to measure and record, and drawing a reaction map; converting the reaction map into data by the electrochemical working instrument, recording and storing the data, thereby obtaining the map data of the Chinese herbal medicine; and changing the amount of the Chinese herbal medicine with the state of the chemical oscillator unchanged to obtain a series of data, drawing an amplitude-concentration curve chart, and qualitatively and quantitatively identifying the Chinese herbal medicine based on the chart which directly reflects the relationship between the amplitude and the concentration. The novel method for identifying Chinese herbal medicine is scientific and effective, has the advantages of simple operation and convenient mastery, and is beneficial to accelerating the modernization of the Chinese herbal medicine.

The invention relates to a refining bread flour, belonging to a technical field of processing the flour by adding organic substances before baking, which includes: raw material flour, an additive, an emulsifier. The bread flour is characterized in that the material flour is domestic wheat flour and no potassium bromate exists in the additive; The additive adopts vitamin C, glucose oxidase, Alpha-amylase, pentosan enzyme, hemicellulase and ADA. Refined bread four produced in the invention is completely suitable for making bread and the bread products do not shrink and collapse; through adjustment of the additive, dough made by the flour presents good expansion and upright-standing after put into an oven so as meet the requirement of the consumers.

The invention belongs to the technical field of microelectronic processes, particularly discloses a polishing solution used in a polishing process with metal ruthenium as an adhesive barrier layer in copper interconnection. The polishing solution comprises the following component raw materials by weight: 0.001 to 10 percent of an inhibitor, 0.1 to 10 percent of an oxidant, 1 to 25 percent of grinding particles, 0.001 to 5 percent of a surfactant, and the balance of water. After the raw materials are mixed, the pH value is regulated to 8.5 to 9.5 through a pH regulator; the inhibitor is selected from organic acid with one or more amino groups and carboxyl groups at the same time, and the oxidant is selected from hydrogen peroxide, ammonium persulphate, potassium periodate, potassium bromate, perborate ammonium ceric nitrate and the like; and the grinding particles are selected from SiO2 hydrosol or hydrosol of metal oxide Al2O3, CeO2 or TiO2 and the like. The polishing solution disclosed by the invention shows weak alkaline, does not corrode and contaminate equipment, is easy to clean, and can polish ruthenium (Ru) and cuprum (Cu) at a polishing selection ratio of 1:1, and the smoothness is good after polishing.

The present invention uses bromide and sodium (potassium) hydroxide as raw material, makes them produce disproportionation reaction, regulates specific weight and pH value, uses hydrogen peroxide to remove free bromine, and adopts the processes of cooling and dewatering to separate sodium (potassium) bromate crude product, and makes the mother liquor undergo the processes of dewatering and concentration to obtain sodium (potassium) bromide crude product. The sodium (potassium) bromide crude product is disclosed, and undergone dthe processes of removing small quantity of sodium (potassium) bromate by using urea, filtering, dewatering, concentrating, drying and packaging to obtain sodium (potassium) bromide finished product. The sodium (potassium) bromate crude product is undergone the processes of dissolving, filtering, dewatering, concentrating, drying and packaging so as to obtain sodium (potassium) bromate finished product.

The invention relates to a coarsening solution for electroplating pretreatment on a surface of a semiconductor N\P type cooling wafer, which comprises a solution A and a solution B preferably, wherein the solution A comprises 5-20% (volume) of hydrofluoric acid, 20-40% (volume) of nitric acid, 0.5-5g / L sodium dodecyl sulfate and the balance of water; and the solution B comprises 10-50g / L potassium bromate, 2-10% (volume) of nitric acid and the balance of water. The invention also provides a process for electroplating pretreatment on the surface of the semiconductor N\P type cooling wafer by using the coarsening solution, which comprises the following steps: soaking the degreased semiconductor N\P type cooling wafer in the solution A for etching and coarsening, and then, soaking the wafer in the solution B for ash removing treatment. The electroplating pretreatment process of the invention can increase the bonding force between a substrate and a nickel layer, can improve the cooling temperature difference and performance of the cooling wafer, can not cause the fracture of the wafer, reduces the production cost, and improves the qualified rate and the production efficiency of products.

A method for preparing hollow cerium fluoride nanometer structure material comprises the steps as follows: the oscillating reaction adopts potassium bromate, sodium bromate-organic acid or sugar-cerium-sulphuric acid, with the consistence of 0.06 plus or minus 0.04, 0.06 plus or minus 0.04, 0.02 plus or minus 0.02 and 0.6 plus or minus 0.4mol / L respectively; Naf is adopted as the fluorin source with consistence of 0.1 to 0.5mol / L; the preparative process of hydro-thermal reaction is performed under the temperature of 110 to 170 DEG C. The cerium source can be K7Ce6F31 powder, ammonium ceric nitrate or ceric ammonium sulfate; the organic acid or the sugar can use the organic matter such as propane diacid, oxalic acid, sucrose and glucose to replace the citric acid. The preparation of the hollow cerium fluoride nanometer structure material needs 12 to 100 hours in a high pressure kettle having polyfluortetraethylene as the lining. Furthermore, the invention prepares the hollow cerium fluoride nanometer structure materials with hexagonal or circular section respectively by controlling the temperature of the hydro-thermal reaction.

The invention relates to a method for polishing silicon through hole wafer and a polishing combination for the same. The method comprises the following steps of: using the polishing combination consisting of organic alkali compound, oxidant selected from sodium chlorite and / or potassium bromate, multiple silicon dioxide ground particles and solvent to polish the surface of the silicon through hole wafer so as to remove silicon and conductive material on the silicon through hole wafer by a removal rate respectively. By the method, the silicon and the conductive material on the silicon through hole wafer can be polished with higher polishing rate so as to greatly reduce time cost required for polishing the silicon through hole wafer. The invention also relates to the polishing combination used in the method.

A method for polishing Through-Silicon Via (TSV) wafers is provided. The method comprises a step of subjecting the surface of a TSV wafer to a polishing treatment with a polishing composition containing an organic alkaline compound, an oxidizing agent selected from sodium chlorite and / or potassium bromate, silicon oxide abrasive particles, and a solvent to simultaneously remove Si and conductive materials at their respective removal rates. By using the method of this invention, Si and conductive materials can be simultaneously polished at higher removal rates to significantly save the necessary working-hour costs for polishing TSV wafers. A polishing composition used in the above method is also provided.

The invention provides a device and method for simultaneously detecting potassium bromate and benzoyl peroxide in wheat meal. The device comprises a reflection board arranged at the inner side of the rear wall of a measurement camera obscura, color measurement standard light sources symmetrically installed at the upper side and the lower side of the front end of the measurement camera obscura, a cuvette which is arranged at the front end of the measurement camera obscura and is opposite to the reflection board and a camera located in front of the cuvette, wherein the camera is connected with a corresponding interface of a computer through a data line. The method for simultaneously detecting the potassium bromate and the benzoyl peroxide in the wheat meal comprises the steps that an acetic acid solution, a phosphoric acid solution, a starch-potassium iodide developing solution, a standard solution of the potassium bromate and the benzoyl peroxide, and a solution to be detected are prepared; after the starch-potassium iodide developing solution is added into the standard solution or the solution to be detected of the potassium bromate and the benzoyl peroxide and a color is developed, the solution is added into the cuvette, a transmitted spectrum image of the solution after color development is shot through the camera, chromaticity values R of the solution are read through the computer, the chromaticity values R of the standard solution after color development are used for drawing a standard curve, chromaticity values R of the solution to be detected are compared with the standard curve, and therefore the content of the potassium bromate and the content of the benzoyl peroxide are obtained.

The invention discloses a chemical test method of potassium bromate in flour, modifying agent or food, which comprises (1), processing sample composed of adding alkali into sample, heating and ashing, dissolving in water, adding acid to adjust pH at 2-5, moving all solution into a centrifugal pipe, controlling the pH value at 1-2, centrifugally treating and taking supernatant fluid, (2), testing potassium bromate composed of adding the supernatant with oxidant, vibrating and adding organic solvent, vibrating, laying and laminating, using distilled water as blank, using spectrophotometer to check the light absorption value of the organic solvent layer and indicating that the sample contains potassium bromate when the light absorption value is not lower than 0.010. The oxidant is strong one and the organic solvent is non-polar or weak-polar organic one. The invention provides a novel, simple, quick, sensitive and stable method for chemically checking potassium bromate in flour, modifying agent or food.

A hydroximated water-soluble polyelectrolyte inverse microemulsion and a preparation process thereof are disclosed, wherein, the emulsion comprises: water phase, oil phase, a hydroximating agent and an inverse agent; the process comprises: formulating sodium hydroxide, pyrosulfite, VA-044 and potassium bromate into solution with deionized water; adding deionized water into a reaction kettle and then sequentially adding acrylamide and acrylic acid; lowering the temperature after dissolution and adding sodium hydroxide solution to control the temperature, adding sodium acetate, sodium formate and diethylene triaminepentaacetic acid pentasodium salt to formulate into the water phase, feeding in high-purity nitrogen to drive away oxygen; adding white oil, span80, Tween81 into a dissolving tank to formulate into the oil phase, feeding in pure nitrogen to drive away oxygen; adding the oil phase into the water phase, adding AIBN and VA-044 after nitrogen is filled up to drive away oxygen, adding sodium pyrosulfite solution for three times with every 40 minutes once in order to control the temperature, then heating up for reaction; heating up once again, adding hydroxylamine hydrochloride for reaction, and dropping the temperature; then adding NP-10 to prepare the target substance for being discharged.

The invention provides an ammonia-etched sea-urchin-shaped spherical structure copper-manganese spinel material, a preparation method and application thereof. The preparation method comprises the following steps: dissolving copper acetate monohydrate, manganese acetate tetrahydrate, urea, potassium bromate and ammonium fluoride in deionized water, uniformly mixing, and carrying out hydrothermal treatment and calcination to obtain precursor powder; and soaking in ammonia water to obtain the ammonia-etched copper-manganese spinel material CuMn2O4 / N. According to the invention, the chemical formula of the ammonia etching copper-manganese spinel material is shown as CuMn2O4 / N, the ammonia etching copper-manganese spinel material is of a sea urchin-shaped spherical structure, each spherical structure is composed of a nanoneedle structure which grows in the radial direction from a central core, the length of the nanoneedle is 100-150 nm, and the average diameter of the sea urchin-shaped spherical structure is 6-10 [mu]m; and when the material is used as an electrode material for generating furandicarboxylic acid through electro-catalytic oxidation of 5-hydroxymethylfurfural, excellent electro-catalytic performance is achieved.

The invention relates to a fast detection method of bromate in bread. The fast detection method comprises the following steps of: (1) preparing liquid A and liquid B, wherein the liquid A is a hydrochloric acid solution and the liquid B is a 1% of potassium iodide solution; (2) mixing the liquid A and the liquid B with equal volumes, putting the mixture into a test tube and adding a crushed bread sample; and (3) observing the color after 1-2 minutes, and if the light purple or purple or purple blue exists, showing that the potassium bromate exists. The fast detection method has the advantages that the cost is low, the operation is convenient, the sample detection can be finished for 10 minutes, and the quantitation is fast and accurate; and the applicability to site and fast detection is achieved, the anti-counterfeiting purpose on site and a home test of consumers are met to ensure the safety and the reassurance of foods, and an effective and fast monitoring means is provided for market supervision. The fast detection method has important practical significance on the aspects of facilitating the effective supervision on the quality of a bread product, protecting the benefit of the consumers and the like.

The invention discloses an anti-oxidation cleaning agent for willow products, and relates to the field of daily maintenance products of willow products. The anti-oxidation cleaning agent is prepared from rosin, nanometer silver powder, styrene, tetracosanoic acid, eucalyptus oil, cold cream, potassium bromate, a dye leveller, calixarene, sodium alginate, water, microcrystalline kaolinite, ammonium polyacrylate, anhydrous salt, mercuric chloride, sodium fluoride, heavy calcium carbonate powder and an anti-oxidation aid. The anti-oxidation cleaning agent can daily main the willow products to prevent the aging of the willow products, has a high anti-oxidation effect, can also repair fine scratches while preventing the oxidation of the willow products, and effectively protects the willow products.

The invention provides a highland barley protein product as well as the processing method taking highland barley powder as raw material. The processing method of the invention includes: the gluten powder is put into the highland barley powder; and glucose oxidase and / or potassium bromate and transglutaminase are put into the highland barley powder, and the flour is kneaded into a mass and deposited for 0.5-5 hours; the dough is washed off starch so as to form glutens; and the formed glutens are put into an oven for drying. The highland barley protein product of the invention has improvements in terms of protein quality, texture and performance. The invention solves problems of protein accumulation difficulties during extraction of highland barley protein as well as albuminous degeneration problems caused by alkali fusion and acid precipitation during the chemical extraction approach, thus promoting the commercial value of highland barley as well as the nutritive value of highland barley as general food. Meanwhile, the invention also changes the traditional processing approach of highland barley and expands the scope of traditional applications of highland barley.

The invention relates to a biological oxidant for replacing potassium bromate in flour products, which is prepared from glucose oxidase 19.0-20.0 wt%, peroxydase 21.0-22.0 wt%, ascorbic acid 58.0-59.0 wt% through mixing proportionally, stirring homogeneously, weighing and packaging.

A timing method for determining micro-protein content, that is: the Potassium Bromate can oxidize acid Chrome blue K to discolour in the 0.2mol / L vitriol liquor, forms Landolt reaction, the protein produces the sensitive inhibitory effect for the indication reaction and extends the fading time, establishes the determining micro-protein dynamics analysis method according to the above. The longest absorption wavelength is 526 nm (nanometer), the density of the protein with the range of 0-90 mug / 10mL assumes nicer linearity relation.

The invention discloses a synthetic method of 2-Bromo-9-fluorenon and belongs to the technical field of synthesis of organic compounds. The synthetic method of the 2-Bromo-9-fluorenon includes the following steps that firstly, 9-fluorenone and a phase transfer catalyst are mixed with an ammonium bromide aqueous solution and then are heated to 40 DEG C to 95 DEG C, the mixed solution is added to potassium bromate for reaction in batches, and the mole ratio of the 9-fluorenone, the ammonium bromide and the potassium bromate is 1:2-4:1-1.25;secondly, the mixed solution is cooled to the indoor temperature after reaction is completed, bromine removal fluid is added, and then the 2-Bromo-9-fluorenon is obtained through filtering and washing. The synthetic method of the 2-Bromo-9-fluorenon is easy and safe to operate, good in reaction selectivity and high in yield.

The invention discloses a coal fuel sulfur-fixation burning accelerant and a preparation method thereof. The burning accelerant comprises the components of raw materials in parts by weight as follows: 15-20 parts of the burning accelerant, 3-8 parts of a catalyst, 5-10 parts of a sulfur-fixing agent, 40-60 parts of a stabilizer, 3-5 parts of preservative and 3-5 parts of an oxidizing agent. The burning accelerant is potassium nitrate or potassium bromate, the catalyst is a polymetallic composite catalyst, the sulfur-fixing agent is slaked lime, the stabilizer is bentonite, the preservative is borax, and the oxidizing agent is potassium permanganate; the mass ratio of the potassium nitrate to the potassium bromate is 3:1; and the mass ratio of polymetallic composite catalyst components of manganese dioxide, iron oxide red, cerous nitrate and nickel sulfate is 5:2:1:1. The preparation method of the coal fuel sulfur fixation burning accelerant comprises the steps as follows: firstly, raw materials are ground respectively until the grain diameters range between 80 mu m and 100 mu m, and then the materials are stirred uniformly; then water is added into the raw materials which are stirred uniformly according to the weight ratio of 2.5:10, and the raw materials and the water are stirred fully and uniformly, so that a product is obtained. The coal fuel sulfur fixation burning accelerant has the advantages as follows: the raw materials are simple and cheap, the synthetic process is easy to operate, and the burning accelerant is environment-friendly, high in desulfurization activity and small causticity to equipment.

The invention belongs to the technical field of organic chemical synthesis, and in particular relates to a preparation method of a rifabutin intermediate. The intermediate is 3-bromo rifamycin S. Themethod includes adding potassium bromate and potassium bromide to water for dissolving, then adding ethyl acetate and rifamycin S, cooling, acidifying, conducting heat preservation reaction, washing,adding a solvent, cooling for crystallization and drying to obtain the 3-bromo rifamycin S. The preparation method has the advantage that raw materials are easy to obtain, the difficulty in transporting and preserving bromine is avoided, the reaction condition is mild, the initiation and the termination are easy, the operation is simple, the yield is high, the product purity is high, and the industrialization is easy.

The invention discloses an analysis method for measuring Sb2S3 in a mixed agent for firecracker. The analysis method comprises the steps of: with civil firecracker as a raw material, forming the best measuring conditions by detaching the firecracker for sampling in a dry environment, grinding, screening with a sieve of 120 meshes, and drying; weighing a sample, washing potassium perchlorate, sulphur and organic binder components in the sample by respectively using hot water, carbon bisulfide and acetone, and drying for later use; weighing a sample, adding 12ml of hydrochloric acid and 5ml of phosphoric acid, covering a watch glass, slowly heating the sample on an electric furnace by shaking simultaneously until the solution boils slightly, removing the watch glass, and keeping the solution boiling slightly until the color of the solution becomes yellowish and transparent; adding 30-35ml of boiling water, shaking uniformly, dripping two drops of methyl orange indicator, titrating the solution with a potassium bromate standard solution until the solution becomes reddish, adding one drop of the indicator, and titrating until the solution fades. The method has the advantages of less interference and high accuracy, and can meet the requirements in industrial production. The method can also be used for measuring the content of chemical agents, stibnite, and antimony trisulfide used as an additive in industry, thereby having a broad application prospect.

The invention relates to a rapid detection reagent for potassium bromate in flour, a kit and a detection method. The rapid detection reagent for potassium bromate in flour comprises a reagent A and areagent B, wherein the reagent A is a 0.225 mol / L potassium iodide solution, and the reagent B is a 1% starch solution. After adopting the technical scheme of the invention, when the detection kit used in the invention detects that the potassium bromated has a pH value of 1-2, the color development time is short and the color is stable when the potassium bromated is protected from light, meanwhile, 0-8 mg / kg potassium bromate standard has linear absorbance at different concentration gradients, and the correlation coefficient R2 reaches 0.9074 or more. The rapid detection reagent is suitable for on-site rapid detection of potassium bromate content in food, has the advantages of rapid color development and high detection rate, and is beneficial to safeguarding people's economic interests andensuring people's edible safety.

The invention discloses a preparation method of 2-amino-5-bromopyridine. The preparation method is characterized in that 2-aminopyridine is used as the raw material, and two different bromination agents, namely bromine and N-bromo-succinimide (NBS), are sequentially added; the reaction temperature is strictly controlled, and thus 2-amino-5-bromopyridine can be quickly prepared with high yield andhigh purity; and the preparation method is applicable to industrial production. Additionally, a high-purity by-product, namely succinimide, is separated out in the preparation process and is brominated into high-purity NBS through potassium bromide, potassium bromate and sulfuric acid; and the NBS is applied to the synthesizing of 2-amino-5-bromopyridine in the method and has the same effect as the commercial NBS. According to the method, the quantity of used NBS is decreased, the raw material conversion rate is increased, and the bromination agents are recycled, so that the cost is greatly decreased; the main byproduct is only inorganic salt potassium sulfate; and the synthesizing method is green and environmentally friendly.

The invention provides a method for detecting a non-linear fingerprint spectrum of selenium-rich tea leaves, which comprises the following steps: S1, crushing sample tea leaves, and sieving to preparetea leaves powder for later use; S2, weighing 0.3000-0.7000g of tea leaves powder, sequentially adding 0.01-0.03 mol of sulfuric acid and 0.00002-0.00005 mol of cerium sulfate into a reactor on the premise of keeping the total volume of the reaction to be 100 mL, and performing magnetic stirring for a preset time at the temperature of between 25 and 45 DEG C; then adding 0.001-0.005mol of potassium bromate and 0.0005-0.003 mol of malonic acid and carrying out spectrum scanning by using a CHI660E type nonlinear workstation, and recording an E-t curve until the potential disappears to obtain anon-linear fingerprint spectrum of the sample; S3, analyzing the non-linear fingerprint of the sample.

The invention discloses a construction method of an electrochemical biosensor based on biomass carbon-nanogold. The construction method is further applied to the quantitative analysis of trichloroacetic acid, sodium nitrite and potassium bromate. An ion liquid carbon paste electrode modified with biomass carbon (BC), the nanogold (Au), hemoglobin (Hb) and Nafion composite membrane on the surface is used as a working electrode. The construction method comprises the preparation of the biomass carbon material, the electro-deposition of Au, Hb and Nafion membrane assembling and like steps. The constructed electrochemistry biosensor can be applied to the quantitative detection of the trichloroacetic acid, sodium nitrite and potassium bromate, and has the advantages of being strong in interference resistance, wide in detection range and low in detection limit.

The invention discloses a method for detecting the content of antimony in a liquid product. The method comprises the following steps in sequence: A, dissolving and preparing a liquid sample: dissolving the liquid sample by concentrated sulfuric acid, cooling to 35-45 DEG C, adding urea until no white smoke is generated, adding thiourea with the mass using amount which is 0.5-2 times of the mass of the liquid sample under a condition that the temperature is not higher than 40 DEG C, adding water with the adding amount which is 100-500 times of the mass of the liquid sample to realize dilution, adding 37% hydrochloric acid in mass to obtain a solution, boiling the solution, keeping micro-boiling for 2-3 minutes, and cooling to 65-75 DEG C to obtain a solution to be detected; B, detecting the content of the antimony in the liquid sample: dropwise adding 0.1% methyl orange indicating agent into the solution to be detected, keeping the temperature of the solution to be detected at 65-75 DEG C, and titrating the solution to be detected through standard potassium bromate solution until the pink color disappears. According to the detection method disclosed by the invention, no special analyzer is needed; the method is simple, quick, accurate, wide in application range and high in selectivity.

The invention discloses a safe and harmless chemical fertilizer and a preparation method of the safe and harmless chemical fertilizer. The safe and harmless chemical fertilizer comprises the following raw materials in parts by weight: 50-80 parts of carbon phosphorus potassium, 60-70 parts of ammonium molybdate heptahydrate, 35-45 parts of polypropylene compound, 55-60 parts of sodium dodecyl benzene sulfonate, 10-20 parts of sulfate, 20-30 parts of 2, 4-dinitrophenol, 35-65 parts of lauryl alcohol ethoxy ammonium sulfate, 50-60 parts of glycerin, 20-30 parts of boric acid, 10-30 parts of potassium fluoride, 35-45 parts of potassium bromate and 30-50 parts of nitrosalicylic acid. The preparation method comprises the steps of evenly mixing the raw materials, heating for reaction and cooling. The safe and harmless chemical fertilizer has a certain yield improvement function for crops, is capable of maintaining the soil to be in a normal state and is lower in influence to the soil; the safe and harmless chemical fertilizer almost has no influence to the content of cadmium, mercury and copper in the soil, and the content of harmful substances in the soil is not increased by the chemical fertilizer, so that the chemical fertilizer is safe and harmless.