Trade name:

P-Hydroxybenzoic acid

Molecular formula:

C7H6O3

Molecular weight:

138.13

Structural formula:

HO COOH

Properties:

white crystal 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.