Colorless liquid with pungent odor. It is miscible with water, soluble in ethanol, acetone and ether. Uses Used as organic reagent, esterification agent and plasticizer, also used in food flavor preparation of preservatives; Anti-mildew agent; Spices. A viscous substance inhibitor used in beer, etc. Use as feed anti-mildew agent. Dosage 0.15%-0.25%. Propionic acid is an important chemical raw material. It is an intermediate of the fungicide metaxylin, Benzoylin, herbicide dipalum, quinogramin, umazolium, pyriflurium, thiazolium, fluropylorogramin, lactoflurium, propachlor, diachlor, etc. It is also a pharmaceutical intermediate, and can be used as a preservative in food industry and a preservative for green feed. Uses Propionic acid is an important fine chemical and an intermediate in many other fine chemicals. It is mainly used as food and feed additives, followed by home medicine precious herbs and medicines, spices and so on. In the field of grain and feed additives, the application effect of propionic acid is remarkable, and the consumption is growing rapidly. (1) Oral additives. Calcium propionate and sodium propionate can prevent the deterioration of food chemicals caused by microbial action, extend the storage time of food, and effectively used in the preservation of bread and pastries. (2) Grain preservatives. Propionic acid has been successfully used to prevent mildew and caking of grain, which provides a new method for long-term storage of grain. (3) Beverage preservative. It is proved that propionic acid, sodium propionate and calcium propionate are good feed preservatives, which are mostly used to preserve feed for pigs, cattle, sheep and poultry, among which calcium propionate has the best effect. Zinc propionate and cadmium propionate in propionate are polyester catalysts for the production of terephthalate. There are many varieties of propionate, with their own uses, can be used as solvents, fragrances, pharmaceutical intermediates, cosmetic additives, resin modifiers, cigarette filter plasticizers, gas oil antiknock agents, antibacterial agents and so on. The intermediates of propionic acid derivatives, 2-chloropropionic acid, lactic acid,2, 2-dichloropropionic acid, 2-bromopropionic acid, 3-chloropropionic acid, propionitrile, propionyl chloride, are respectively used in the production of many drugs, pesticide herbicides, food fortifiers, spices and other products. Use for the preparation of propionate for spices, and used as cellulose nitrate solvent and plasticizer
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