Description
P-hydroxybenzoic acid quick Details
Chemical Name:P-hydroxybenzoic acid
CAS No.:99-96-7
Molecular Fomula:H8N2O8S2
Molecular weight:228.2
MolecularStructure:
Appearance:White crystalline powder
P-hydroxybenzoic acidProperties
Item
Standard
Appearance
White crystalline powder
Purity (on dry base)
≥99%
Melting point
213-216℃
Odor
Odorless
Solubility
Clear and Transparent
Loss on drying
≤0.50%
Color（pt-co）
≤40
Ash
≤0.15%
Sulfate（SO4 ）2-
≤0.05%
Chloride（Cl -）
≤0.02%
Phenol
≤0.1%
Salicylic Acid
≤0.1%
P-hydroxybenzoic acidUsage
(1)Used as analytical reagent, photographic fixative and reducing agent.
(2)Used as food preservative, oxidant and initiator of polymer.
(3)It is used in chemical industry as raw material for manufacturing persulfate and hydrogen peroxide, polymerization promoter for organic polymers and initiator for polymerization of vinyl chloride monomers.The oil and soap industry is used as a bleaching agent.It is also used in corrosion agent of metal plate and oil recovery.Food grade used as wheat modifier, beer yeast anti – mildew agent.
(4)Determination and determination of manganese, iron and steel analysis, oxidant.
P-hydroxybenzoic acid Packaging and Shipping
Packing: 25kg/bag
P-hydroxybenzoic acid Storage
Stored in cool dry and ventilated warehouse away from oxidants
