The difference between pharma grade & Technical grade Salicylic acid
Technical grade salicylic acid is in pale pink to white green appearance, while pharmaceutical grade is white powder, odorless, sweet first and then no chemical change in the air.
Salicylic acid is often used as an anti-inflammatory materials. It is known for its ability to ease aches and pains and reduce fevers.
Salicylic acid tends to atmospherically subimate when temperature higher than 76°C; Easily to decarboxylate and change into phenol and carbon dioxide when heated atmospherically. It is slightly soluble in water but dissolves in boiling water easily, soluble in ethanol or ether and slightly soluble in Chloroform.
-Boiling point: 211°C
-Melting Point: 158-161 °C
-Flash Point: 157°C
-Density: 1.44g/cm3
Specification of Salicylic acid
Item Industrial Grade Sublimed Grade Pharma Grade
Purity, % min. 99.0 99.0 99.0-100.5Phenol, % ma . 0.20 0.10 0.10
Melting point, °C max 156 158 158
Sulphate ash, % max. 0.30 0.20 0.10
Loss on drying, % max. 0.50 -- --
Mositure. % max. 0.50 0.40 0.40
Heavy metals, ppm max 20 -- --
Sulphate, % max 200 -- --
Application of Salicylic acid
Cosmetic industry: It has a good’ scrub, clean pores’ capacity, safety, skin irritation and even lower than the other acid, thereby becoming the new darling of skin care products; It can also dilute the pigmentation spots, reduce pores, remove fine wrinkles and improve the effects of aging caused by sun exposurel
Pharmaceutical industry: It is a highly versatile disinfection preservative, which can be used to inhibit synthesis of sulfonamide nitrogen, antipyretic analgesics aspirin, sodium salicylate.
Chemical industry: It can be used in pesticides. Dye and rubber making.
Packaging
25kg per fiber drum
25kg craft bag
18mt-20mt per 20ft container
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