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Ammonium citrate Ammonium citrate, a triammonium citrate white crystal, easy to deliquesce, relative density 1.48, soluble in water, insoluble in ethanol, ether, acetone, heat decomposition. Ammonium citrate is mainly used in chemical analysis, industrial water treatment, metal cleaning (oil pipeline cleaning), ceramic dispersant, penetration enhancer, detergent raw materials, and soil improver components, and also used in medicine, electronics and other industries.

Other metals; catalytic and inorganic chemistry; chemical reagents; electronic chemicals; general reagents; chromium; other biochemical reagents; acids; inorganic compounds and salts; organic chemicals; ultra dry solvents; pharmaceutical raw materials; Electroplating chemicals; chemical additives; chrome salts; inorganic chemicals; inorganic salts; chemical raw materials;

Industrial surfactants; chemical additives; anionic surfactants; aromatic hydrocarbons; organic blocks; sulfonic acid / sulfinates; other biochemical reagents; electroplating intermediates; organic chemicals; chemical reagents; organic materials; Acid salt; industrial raw materials; biochemical reagents; organic chemical raw materials;

For the conversion of monomers and copolymerization emulsifiers of various polymers, emulsion polymerization of sulfoethyl groups and other types (such as styrene, butadiene, acrylate, etc.) has better mechanical stability and The emulsification aid for the stability of the metal salt has a good adaptability to the environment in which the pH changes, has a certain improvement in water resistance, and is more economical in the use of various emulsifiers.

Succinic acid, molecular weight 118.09, colorless crystal, acid, flammable. There are two crystal forms with a relative density of 1.572 (25/4 ° C).

The formula of citric acid monohydrate is C6H8O7·H2O, which is mainly used as a sour agent, flavoring agent, preservative and preservative in the food and beverage industry. It is also used as an antioxidant, plasticizer and detergent in the chemical industry, cosmetics industry and washing industry. Powder and air can form an explosive mixture. In case of fire, high heat or contact with oxidant, there is a danger of causing a burning explosion. The citric acid monohydrate and the sodium citrate dihydrate are combined with the pH 6.0 citrate buffer.

Used in organic raw materials, solvents, cyanide-free plating solutions, also used in artificial leather, pharmaceutical and agrochemical industries

The alkali solution melts the tin block and then water quenches it into tin flower, then reacts with caustic soda and sodium nitrate, and the reaction temperature rises from 300 ° C to 800 ° C to form sodium stannate.

Phosphoric acid or orthophosphoric acid, the chemical formula H3PO4, has a molecular weight of 97.994, is a common inorganic acid and is a medium strong acid. It can be obtained by dissolving phosphorus pentoxide in hot water. The orthophosphoric acid industry is treated with sulfuric acid to obtain apatite. Phosphoric acid is easily deliquescent in the air. Heating will lose water to get pyrophosphoric acid, and further lose water to get metaphosphoric acid. Phosphoric acid is mainly used in the pharmaceutical, food, fertilizer and other industries, including as a rust inhibitor, food additive, dental and orthopedics, EDIC corrosives, electrolytes, fluxes, dispersants, industrial corrosives, fertilizer raw materials and components household cleaning products. It can also be used as a chemical reagent, and phosphate is a nutrient for all life forms.

Stannous chloride, chemical formula SnCl2. It is a white or white monoclinic crystal. The relative density is 2.710, the melting point is 37.7 degrees, and it is decomposed into hydrochloric acid and a basic salt at the melting point. The anhydrous has a density of 3.950g/cm3 and a boiling point of 623°C. It decomposes into hydrochloric acid and basic salt at the melting point, and is easily soluble in water, alcohol and glacial acetic acid. The solubility in concentrated hydrochloric acid is greatly increased, and one water can be used. The form of matter and tetrahydrate exists.

Acetic acid, also known as acetic acid (36% - 38%), glacial acetic acid (98%), chemical formula CH3COOH, is an organic monobasic acid, which is the main component of vinegar. Pure anhydrous acetic acid (glacial acetic acid) is a colorless hygroscopic solid with a freezing point of 16.6 ° C (62 ° F). It is colorless crystal after solidification. It is weakly acidic and highly corrosive in aqueous solution. Steam has eyes and nose. Irritating effect.

Synthetic method dissolves stannous chloride in hydrochloric acid, dilute with water, and add sodium carbonate until the solution is alkaline. Further, sulfuric acid is added to carry out the reaction, the crystals are evaporated, filtered, and dried to obtain stannous sulfate. its

Formic acid (chemical formula HCOOH, molecular formula CH2O2, molecular weight 46.03), commonly known as formic acid, is the simplest carboxylic acid. A colorless, pungent liquid. Weak electrolyte, melting point 8.6 ° C, boiling point 100.8 ° C. It is very acidic and corrosive and can irritate the skin. Present in the secretions of bees, certain ants and caterpillars. It is an organic chemical raw material and is also used as a disinfectant and preservative.

powder. Soluble in acid, insoluble in water. It can be complexed with potassium pyrophosphate to form a water-soluble copper potassium pyrophosphate complex. Pyrophosphate copper plating is a widely used electroplating copper process used in electroplating plants. The characteristic of the process is that the plating solution is relatively stable, the plating layer is finer, the dispersing ability and the covering ability are better than the acid copper plating, the cathode current efficiency is higher than the cyanide copper plating, and a thick coating layer can be obtained, and no irritating gas is obtained during the electroplating process. Escaped, so the ventilation equipment can be omitted, the plating solution is non-toxic, and it has no corrosion to the equipment, and is especially suitable for electroplating of printed circuits and zinc alloy die-casting parts.

Hydrofluoric acid is an aqueous solution of hydrogen fluoride gas, a clear, colorless, fuming corrosive liquid with a strong pungent odor. The melting point is -83.3 ° C, the boiling point is 19.54 ° C, the flash point is 112.2 ° C, and the density is 1.15 g/cm 3 . Soluble in water and ethanol.

The paint stripper is a mixture of aromatic compounds and highly soluble solvents. It has a strong ability to dissolve the paint film. The paint remover is fast and efficient. The range of removable coatings is wide. It is suitable for alcohol. Acid, nitro, polyurea rubber type ethylene, epoxy, polyester, polyurethane and other paints, exterior wall coatings, powder coating, coating removal, strong paint removal ability. Compared with similar products abroad, The stripping effect is the same, and the stripping time can be saved by about 20%.

Oxalic acid is a metabolite of organisms, widely distributed in plants, animals and fungi, and plays different functions in different living organisms. The study found that more than 100 kinds of plants are rich in oxalic acid, especially in spinach, leeks, beets, purslane, taro, sweet potato and rhubarb. Because oxalic acid can reduce the bioavailability of mineral elements, it is easy to be calcium in human body. Ionic formation of calcium oxalate leads to kidney stones, so oxalic acid is often considered to be an antagonist of mineral element absorption and utilization.

Potassium pyrophosphate, also known as tetrapotassium pyrophosphate, is produced by the melting of potassium dihydrogen phosphate to lose water molecules. It is a white crystalline powder or granule at room temperature. It has strong hygroscopicity in air and is highly soluble in water. However, it is insoluble in ethanol, and the aqueous solution is alkaline, which inhibits food spoilage and fermentation. It is often used in combination with other condensed phosphates. In order to make the plating layer smooth and firm, the formulation of the plating solution in industrial production is often complicated. In the past, cyanide was commonly used as a complexing agent to prepare a plating solution. However, due to the high toxicity of CN-, the health of electroplating workers is greatly damaged. At the same time, the discharge of sewage and exhaust gas containing CN- also seriously pollutes the environment. Therefore, electroplating is now mainly used for cyanide-free plating, and this complexing agent for r