Benzoic Acid


INCI Adopted Name: Benzoic acid
CAS Registry No.: 65-85-0
EINECS No.: 200-618-2
Molecular Formula: C6H5COOH
Molecular Weight: 122.1214
Structural Formula:
Synonyms: Carboxybenzene



Physical Property

Appearance: Scaly or needlelike crystal, with odor of benzene or formaldehyde.

Solubility: Slightly soluble in water, soluble in ethanol, diethyl ether, chloroform, benzene, carbon disulfide, carbon tetrachloride.

Technical Data

Item CP 2005 BP 98-2009 USP23-32 Food Additive GB1901-2005 E211 FCCV Feed Additive NY/T1447-2007
Appearance White with silky scales or needlelike crystal or crystalline powder White crystal or white crystalline powder White crystal White crystal powder White scaly or needle like crystal Whate crystal
Identification Passed Passed Passed Passed Passed Passed Passed
Assay ≥99.0% 99.0-100.5% 99.5-100.5% ≥99.5% ≥99.5% 99.5%-100.5% ≥99.5%
Solution Clear, colorless
Readily oxidizable substance Passed Passed Passed Passed Passed Passed Passed★
Readily carbonizable substance No darker than Y5 (Yellow) No darker than Q(Pink) Passed Passed Passed
Heavy metal(Pb) ≤0.001% ≤10ppm ≤10ug/g ≤0.001% ≤10mg/kg ≤0.001%
Iginition residule ≤0.1% ≤0.05% 0.0005 ≤0.05%
Melting point 121-124.5ºC 121-124ºC 121-123ºC 121-123ºC 121.5-123.5ºC 121-123℃ 121-123℃
Chlorine compound ≤300ppm ≤0.014% ≤0.07% (Cl) ≤0.014%★
As ≤2mg/Kg ≤3mg/kg ≤2mg/Kg
Phthalic acid Passed ≤100mg/kg★
Sulphate ≤0.1% ≤0.05%
Loss on drying ≤0.7%(water) ≤0.5% ≤0.5% ≤0.7% ≤0.5%(water)
☆Polycyclic acid Passed
☆Hg ≤1mg/kg
☆Pb ≤5mg/kg ≤2.0mg/kg☆
Biphenyl ≤100mg/kg

Note: 1. Item with“☆” is tested once out of 100 batches.

  1. Item with “★” is tested once a year.


Industrial benzoic acid (Q/WYJ103-2009)

Grade/ Item Premium Grade First Grade Qualified Grade
Appearance White flaked solid White/ Light yellow flaked solid
Assay,%        ≥ 99.0 98.5 98.0
Color (Hazen) ≤ 50 80 200
Melting Point, ℃       ≥ 120




Standard packaging: 25kg/bag, inner is PE film bag, outer bag is PP film bag.

Available special request




It shall be stored in a well-ventilated, cool and dry place which is out of direct sunlight. Keep containers tightly closed when not in use.



24 months



Benzoic acid and its sodium salt can be used as a bacteriostatic agent for latex, toothpaste, jam or other food, and also as a mordant for dyeing and printing. It can also be used as an intermediate for pharmaceuticals and dyes, for plasticizers and perfumes, and as a rust inhibitor for steel equipment.