Chloroacetic acid is an important organic fine chemical raw material, which is widely used in the fields of pesticides, pharmaceuticals, dyes, oilfield chemicals, papermaking chemicals, textile additives, surfactants, electroplating, spices and flavors. Its main USES are as follows.
(1) pesticides. Chloroacetic acid can be used for the production of insecticides dimethoxide, dimethoxide oxide, herbicide 2, 4-dibutyl, 2,4, 5-t, acetochlor, butyloramine, methanolamine, glycolamine, thiocyanoacetic acid, naphthoacetic acid, naphthoacetate methyl ester, quinoxion, rice wenling, glyphosate and p-chlorophenoxyacetic acid. Chlorophenoxyacetic acid is a kind of plant growth regulator, which has the function of internal absorption and conduction, can promote or inhibit the growth of plants, effectively prevent the falling flowers and fruits of fruits, melons and fruits, fruits and other crops, and has many functions such as promoting early maturity, expanding seed seeds and improving fruit quality.
(2) carboxymethyl cellulose and carboxymethyl starch. Carboxymethyl cellulose (CMC) and carboxymethyl starch as sizing agent, binder, stabilizer, water retention agent widely used in textile, oilfield, ceramics, tobacco, construction and other industries. Because most of the oil fields in China are in the period of multiple oil recovery, the demand of CMC for mud additives used in oil field drilling will increase greatly, and the application field of CMC is still expanding, so the demand for chloroacetic acid will rise steadily, becoming one of the fields with the fastest growth of chloroacetic acid consumption.
(3) medicine. In the pharmaceutical industry, chloroacetic acid is a reaction intermediate for the production of hypnotic and sedative barbiturates, VB6 and VA, and can also be used as raw materials for the production of caffeine, theophylline, epinephrine, amino acids, butadipine and chloroquine.
(4) dye. In the dye industry, chloroacetic acid can be used in the production of cationic fluorescent yellow 4 GL, 10 GFF cationic brilliant yellow, deep yellow cationic GL, scattered fluorescent yellow GL, scattered fluorescent yellow FFL, scattered yellow H3GL, prevent brittle sulphur black, VAT pink R, reducing red G, VAT pink 3 b, black BBN and VAT black BL, synthetic indigo and naphthalene amino acetic acid and other products.
(5) organic synthesis and others. Chloroacetic acid molecule containing hydrogen alpha lively, carboxyl, chloric substituent multiple high reactivity of functional groups, such as easy to occur esterification and amidation, ammoniation, cyanide, sulfur chloride, hydrolysis and so on the many kinds of chemical reaction, is an important organic synthetic intermediate, can be used for the preparation of malonic acid, propylene nitrile, malonic ester, thioglycolic acid, thioglycolic acid ester and other fine chemicals. Betaine acetate, a derivative of chloroacetic acid, is a good amphoteric surfactant. In addition, chloroacetic acid can also be used in the production of cationic surfactants, advanced alcohol esters, softeners, calcium soap dispersants, creatine, chlorotriacetic acid, naphthalene aminoacetic acid, etc. In recent years, the demand for chloroacetic acid for fine organic synthesis has been increasing rapidly.