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Arsenic-free Zinc-manufacture,factory,supplier from China
(Total 24 Products for Arsenic-free Zinc)
Appearance and traits: white crystals, extremely salty, non -toxic. It is easy to solverate in water, ether, glycerin and alkali, slightly soluble in ethanol, but insoluble in water -free ethanol, which is hygroscopic and easy to lump; New potassium salt is generated by reciprocating and disintegrating.
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Zinc Borate is an environmentally friendly non -halogen flame retardant. It has the characteristics of non -toxic, low -water solubility, high heat stability, small particle size, small gravity, and good decentralization. As a high -efficiency flame retardant Rubber, coatings and other fields.
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Molecular weight: 65.39
Grade: 5N
MDL number: MFCD00011291
EC number: 231-175-3
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It is a solvent for a variety of coatings and a raw material for preparing dibutyl phthalate, a plasticizer. It is also used in the manufacture of butyl acrylate, butyl acetate, ethylene glycol butyl ether,
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It is a new solvent for selective desulfurization and decarbonization with excellent performance. It has the advantages of high selectivity, low solvent consumption, significant energy-saving effect, and non-degradability.
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It is a solvent for a variety of coatings and a raw material for preparing dibutyl phthalate, a plasticizer. It is also used in the manufacture of butyl acrylate, butyl acetate, ethylene glycol butyl ether, as an extractant for organic synthesis intermediates and biochemical drugs, and in the manufacture of surfactants.N-butanol is a colorless, transparent and alcoholic liquid.
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Sodium Persulfate is also called sodium sulfate, is an inorganic substance, a chemical formula is Na2S2O8, and the appearance is a white crystal powder, odorless.
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Appearance and properties: colorless liquid, almost odorless
Molecular weight 90.12 Vapor pressure 0.51 kPa/20℃ Flash point: 43℃
Melting point -70°C boiling point: 135.1°C solubility can be miscible with water and most organic solvents such as ethanol
Density (D4) 0.925-0.935
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insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether and oils, it's miles the skeleton factor of triglyceride molecules.
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Methyl 2-chloropropionate is an organic compound with the chemical formula C4H7ClO2, mainly used as an intermediate in pesticides, pharmaceuticals, and spices.
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Oxygen is a simple substance composed of oxygen. The chemical formula O2 has more vivid chemical properties, and most of the elements can react with oxygen.
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Biphenyl is found in coal tar, crude oil and natural gas. The preparation methods of biphenyl include the chemical composition method of making biphenyl through benzene pyrolysis and the separate extraction method of making biphenyl through various coal tar fractions. The mass fraction of biphenyl in coal tar is 0.20%-0.40%, and coal tar extraction method and chemical composition method coexist.
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There are two isomers of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate (TDI). According to the content of the two isomers, there are three standard products in the industry: (1) TDI-65 contains 2,4-TDI65%, 2,6-TDI35%; (2) TDI-80 contains 2,4- TDI80%, 2,6-TDI20%, more common; (3) TDI-100 contains 2,4-TDI100%. Carbon dioxide occurs with water effect. Easy to work with compounds containing active hydrogen atoms. Linear polyurethane or polyurethane resin with diol effect.
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Miscible with ether, diethylene glycol, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene and olive oil. It can react with hydroxyl-containing compounds, water, amines and compounds with active hydrogen atoms to generate carbamate, urea, semicarbazide, etc. Toluene is nitrated with mixed acid to obtain 2,4- and 2,6-dinitrotoluene, and then hydrogenated and reduced in the presence of nickel catalyst to obtain 2,4- and 2,6-diaminotoluene, which is then reacted with light in chlorobenzene solution. produced by gas reaction.
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Biphenyl, whose molecular formula is C12H10, is an important organic raw material and is widely used in the fields of medicine, pesticides, dyes, and liquid crystal materials.
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Melting point -70°C boiling point: 135.1°C solubility can be miscible with water and most organic solvents such as ethanol
Density (D4) 0.925-0.935
The relative density (water=1) is 0.94; the relative density (air=1) 3.10 is stable
Danger marks 7 (flammable liquid) and 14 (including drugs) are mainly used as solvents, as well as leather colorants, emulsifiers, stabilizers, paint thinners, paint removers, etc.
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Antioxidants are substances that block the adverse effects of oxygen. It is a class of substances that can help capture and neutralize free radicals, thereby eliminating the damage caused by free radicals to the human body.
Antioxidants refer to food additives that can prevent or delay the oxidation of food, improve the stability of food and prolong the storage period. The correct use of antioxidants can not only prolong the storage period and shelf life of food, bring good economic benefits to producers and consumers, but also bring better food safety to consumers.
Antioxidants can be used as hydrogen donors to scavenge free radicals generated during the chain initiation stage, thereby inhibiting or reducing the oxidation of oils. Therefore, in order to delay the oxidation of fats and extend their shelf life, the most common and effective way is to add antioxidants to the fats.
Acetic acid, commonly known as acetic acid (AcOH) because it is the main component of vinegar, is one of the most important fatty acids. In nature, it occurs in many plants as free or esters. Molecular formula CH3COOH.
The principle of photocatalysis is based on the oxidation-discount capacity of photocatalysts beneath mild conditions, which can reap the purpose of purification of pollution, cloth synthesis and transformation. usually, the photocatalytic oxidation response makes use of a semiconductor as a catalyst and mild as an power source to degrade organic rely into carbon dioxide and water.
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Generally speaking, the human body needs aerobic metabolism. Glucose can be converted into pyruvate, which generates energy through the tricarboxylic acid cycle, and pyruvate generates lactic acid. A small amount of lactic acid is produced during aerobic metabolism.
Castor oil is the triglyceride of oleic acid. Castor oil is produced in the seeds of castor oil, and its proportion is 35%～57%." Castor oil is obtained by pressing or solvent extraction. There is basically no color or slightly yellowish color. It is clear and thick liquid; slightly gas; light and then slightly pungent.
N-Methyldiethanolamine (MDEA) is commonly used to solve the acid gas containing hydrogen sulfide and CO2 in industrial production. It can absorb hydrogen sulfide and part of CO2.