Salicylic acid (Salicylic acid)

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Salicylic acid

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Salicylic acid
Freezone
Duoplant
verrugon
SAX
Saligel
2-hydroxy-benzoic acid
Salonil
Ionil
o-hydroxybenzoic acid
phenol-carboxylic acid
Stri-Dex
Benzoic acid, 2-hydroxy-
Rutranex
Keralyt

+Expand -Stow

69-72-7

C7H6O3

138.12

2918211000

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Nature Description

White acicular crystal or monoclinic prism crystal. It has spicy flavor. Flammable. Low toxicity. It is stable in the air, but it gradually changes color when it comes to light. Melting point 159 ℃, relative density 1.443, boiling point 211 ℃(2.66kPa). Sublimation at 76℃. When heated sharply, it is dissolved into phenol and carbon dioxide. 1g of this product can be dissolved in 460 ml water, 15 ml hot water, 2.7 ml alcohol, 3 ml acetone, 42 ml chloroform, 3 ml ether, 135 ml benzene, 52 ml turpentine. The pH of the saturated aqueous solution is 2.4. Its aqueous solution is acidic.

1.44

211oC(20MMHG)

158-161oC升华点70oC

157oC

1.8G/L(20oC)

Product Applications

Used as dye intermediate, disinfectant, food preservative, etc.

Production method

Phenol reacts with sodium hydroxide to generate sodium phenolate. After distillation and dehydration, carbon dioxide is used for carboxylation reaction to prepare sodium salicylate, and then sulfuric acid is used to acidify to obtain crude product. The crude product is refined by sublimation. Raw material consumption quota: phenol (98)704 kg/t, caustic soda (95)417kg/t, sulfuric acid (95)500kg/t, carbon dioxide (99)467kg/t.

Security

Dangerous Goods Marking： Xn

Safety instructions： S26: in case of contact with eyes, rinse with plenty of water immediately and send it to the doctor for diagnosis and treatment. S37/39: use suitable gloves and goggles or mask.

Hazardous material category code： R22: swallowing is harmful. R41: risk of serious eye damage. R36/37/38: it can irritate eyes, respiratory tract and skin.

Symbols： GHS05,GHS07

Storage conditions： Store in a cool and ventilated warehouse. Keep away from fire and heat source. Keep the container sealed. It should be stored separately with oxidant, alkali, etc., and should not be mixed. Equipped with corresponding varieties and quantities of fire fighting equipment. The storage area should be equipped with appropriate materials to accommodate leaks.

Cautionary Statement： P280;P301+P312+P330;P305+P351+P338+P310

Signal word： Danger

Hazard Statement： H302;H318