4-Hydroxybenzoic acid CAS:99-96-7

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1 Kilogram	FOB Price: USD 1.0000

1 Kilogram

FOB Price: USD 1.0000

99-96-7 4-Hydroxybenzoic acid Para-Hydroxybenzoic Acid

Chemical Name:4-Hydroxybenzoic acid

Trade Name:p-oxybenzoic acid

Molecular Formula:C7H6O3

Molecular Weight:138.12

CAS No.:99-96-7

Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone,

slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46

Item	Index
	Polymerization level	Industrial grade
Appearance	White crystalline powder	White crystalline powder
Content (dry basis) %≥	99.6	99.0
Melting point ℃	214-217	212-216
Odor	No odor	No odor
Solubility	Clear and transparent	Clear and transparent
Drying loss %≤	0.20	0.50
Color (Pt-Co)≤	10	40
Ash content % ≤	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 ppm ≤	500	/
Methanol-insoluble matters ppm ≤	50	/
Potasium (K+) ppm	5	/
Sodium (Na+) ppm ≤	5	/
Iron (Fe) ppm ≤	5	/
Calcium+Magnesium (Ca2++Mg2+)ppm ≤	10	/