p-hydroxybenzoic acid(PHBA)
Name:Para Hydroxy Benzoic acid
Trade Name:p-hydroxybenzoic acid
M. F. : C7H6O3
M. W. : 138.13
CAS#: 99-96-7
Properties: White crystalline powder
ITEMS | SPECIFICATONS | ||
Liquid crystal grade | Industrial grade | ||
Appearance: | white crystal powder | white crystal powder | |
Color: | < 30 APHA | 40APHA | |
Melting point(): | 214-217 | 213-217 | |
Solubility: | clear, transparent, Colorless | clear, transparent, Colorless | |
Methanol insoluble matter Ug/g | ≤ 50 | ||
Assay (titration method)% | ≥ 99.5 | ≥99.0 | |
Assay (GC) % | ≥ 99.5 | ≥ 99.0 | |
Salicylic acid (GC) % | ≤ 0.02 | ≤ 0.10 | |
Benzene powder(GC)% | ≤0.01 | ≤ 0.10 | |
Loss on drying % | ≤ 0.20 | ≤ 0.50 | |
Ash % | ≤0.02 | 0.15 | |
Sulfate Ug/g | ≤ 50 | ≤ 500 | |
Chloride Ug/g | ≤ 50 | ≤ 200 | |
potassium ionUg/g | ≤ 10 | ||
Sodium ion Ug/g | ≤ 10 | ||
Ferric ion Ug/g | ≤ 10 | ||
Uses: | 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. |
P-Hydroxybenzoic acid