P-Hydroxybenzoic acid

Trade name:P-Hydroxybenzoic acidMolecular formula:C7H6O3Molecular weight:138.13Structural formula:HO COOHProperties:white crystal powder ITEMSSPECIFICATONSLiquid crystal gradeIndustrial gradeAppearance:white crystal powderwhite crystal powderColor:< 30 APHA40APHAMelting point():214-217213-217Solubility:clear, transparent, Colorlessclear, transparent, ColorlessMethanol insoluble matter Ug/g≤ 50Assay (titration method)%≥ 99.5≥99.0Assay (GC) %≥ 99.5≥ 99.0Salicylic acid (GC) %≤ 0.02≤ 0.10Benzene powder(GC)%≤0.01≤ 0.10Loss on drying %≤ 0.20≤ 0.50Ash %≤0.020.15Sulfate Ug/g≤ 50≤ 500Chloride Ug/g≤ 50≤ 200potassium ionUg/g≤ 10Sodium ion Ug/g≤ 10Ferric ion Ug/g≤ 10Uses:used as antiseptic, dye, drug & plastic injection intermediate, or used in production of Nipagin Esters, high molecular Liquid crystal polymer and pesticide intermediate.Packing:25Kg in plastic bag lined woven bag. Kept in cool and dry place.