The use of salicylic acid

Salicylic acid is a white apparent powder, odorless, absinthian aftertaste to about-face the symplectic. Melting point 157-159 ℃, beneath beam gradually Beijing discoloration. The about body of 1.44. The baking point of about 211 DEG C /2.67kPa. 76 ℃sublimation. Beneath accelerated heating for phenol atomization and carbon dioxide. 1g salicylic acerbic are attenuated in 460ml water, 15ml water, 2.7ml ethanol, acetone, ether, 3ml 3ml 42ml 135ml 52ml, benzene, chloroform turpentine, about 60ml glycerol and 80ml petroleum ether. Adding sodium phosphate, base etc can access the solubility of salicylic acerbic in water. Salicylic acerbic aqueous band-aid pH amount of 2.4. Salicylic acerbic and adamant chloride aqueous solutions generated appropriate purple. Mainly acclimated as the biologic industry raw materials, acclimated in the alertness of aspirin, salicylic acerbic sodium, salicylamide, ethenzamide, phenyl salicylate, schistosomiasis -67 drugs. Dye industry for the alertness of acerbic dyeing authentic yellow, absolute amber 3GN, acerbic chrome yellow. Aswell acclimated as elastic vulcanization retarder and antiseptic.

Salicylic acid is an important raw actual for medicine, spices, dyes, elastic additives such as accomplished chemicals. In the biologic industry, salicylic acerbic is acclimated as antiseptics, acclimated for bounded admeasurement of keratinocytes and derma fungal infections. As for biologic intermediates, ethenzamide, ADH, acetylsalicylic acerbic ), sodium salicylate, salicylamide, glibenclamide, niclosamide, salicylic acerbic phenyl ester, ethyl p-hydroxybenzoate, bismuth subsalicylate, drugs such as sulfasalazine production. In the dye industry, for the assembly of absolute chicken GR, absolute blah BL, absolute ablaze amber RT, acerbic acerbic amber G, acerbic acerbic chicken gG dye, average acerb chrome yellow. Salicylic acerbic ester can be acclimated as spices, such as methyl salicylate as toothpaste and added articulate spices and added spices and aliment spices. For the assembly of anti-scorching agent, ultraviolet absorptive and bubbles abettor in elastic industry. Salicylic acerbic is aswell acclimated as a phenolic adhesive abating agent, bolt press and dyeing of slurry preservatives, constructed cilia dyeing bulking abettor ( accelerant ) etc.

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