p-Hydroxybenzoic Acid

Physical & Chemical Properties: This product is white crystal powder without any smell but is astringent. it is easily dissolved

p-Hydroxybenzoic Acid

Chemical Name:p-hydroxybenzoic acid

Molecular Formula:C7H6O3

Molecular Weight:138.12

CAS#:99-96-7

Physical & Chemical Properties: This product is white crystal powder without any smell but is astringent. it is easily dissolved in hot water, alcohol, ether, acetone; slightly dissolved in cold water, benzene, and not dissolved in carbon bisulfide. It is dissolved in 125 cold water and relative density is 1.46.

Quality Specification

Item	Specification
	Polymer Grade	Technical Grade
Appearance	white crystal powder	white crystal powder
Purity(on dry base) %	99.6	99.0
Melting Point	214-217	212-216
Odor	odorless	odorless
Solubility	Clear and transparent	clear and transparent
Loss on Drying %	0.20	0.50
Color(Pt-Co)	10	40
Ash %	0.02	0.15
Sulfate(SO42-)	0.01	0.05
Chloride(Cl-) %	0.005	0.02
Phenol %	0.01	0.10
Salicylic Acid %	0.02	0.10
4-Hydroxyisophthalic Acid(HIPA) ppm	500	/
Insolubles in Methanol ppm	50	/
Potassium(K+) ppm	5	/
Sodium (Na+) ppm	5	/
Iron (Fe) ppm	5	/
Ca2++Mg2+ppm	5	/

Usage: This product could be used an intermediate of antiseptics, dyestuff, medicine and injection molding. Nipagins could be gained by its esterfication with alcohol. It is also the main raw material for liquid crystal polymer and material for pesticide intermediates.

Package: It is packed with braided plastic bags within double PE linings. Each has net weight of 25 kg. Those packed with PP bag has its net weight of 500 kg/b or 1000 kg/b.

p-Hydroxybenzoic Acid