Factory Supply Bp USP Grade Sodium Benzoate CAS No. 532-32-1

• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Certificate: ISO Reach
• Quality: Refined
• Colour: White
• EINECS: 208-534-8
• Model NO.: SB
• Formula: C7h5o2na
• CAS No.: 532-32-1
• Transport Package: 25kg/Bag
• Specification: Pharma Grade
• Trademark: EBT Chem
• Origin: China
• HS Code: 2916310000
• Production Capacity: 10000mt/Year

Product Description

Sodium Benzoate

DESCRIPTION

CAS Registry No.:	532-32-1
EINECS No.:	208-534-8
Molecular Formula:	C7H5O2Na
Molecular Weight:	144.105 g/mol
Structural Formula:
Synonyms:	Benzoic acid, sodium salt

 

SPECIFICATIONS

Technical Data

Item	Specification
Appearance	White, almost odorless crystalline powder
Identification
Benzoates	Positive
Sodium	Positive
Appearance of solution
Clarity	Clear
Color	Y6
Assay ,%	99.0-100.5
Acidity or alkalinity (ml/g)	0.2 Max
Halogated compounds
Ionised chlorine, ppm	200Max
Total chlorine, ppm	300Max
Heavy metals ,Pb (ppm)	10 Max
Readily oxidisable substance	Passed
Polycyclic acids	Positive
Loss on drying, %	2.0 Max

 

PACKAGING

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

STORAGE

Sodium Benzoate 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.

PERIOD OF VALIDITY

24 months 

APPLICATIONS

Sodium benzoate is an acidic preservative and has no bactericidal and bacteriostatic action in alkaline media. The optimal pH for its preservation is 2.5-4.0. The bactericidal effect of a 5% solution at pH 5.0 is not very good.
Sodium benzoate is more lipophilic and easily penetrates the cell membrane into the cell body, interfering with the permeability of the cell membrane, inhibiting the absorption of amino acids by the cell membrane, entering the alkaline reservoir of the ionized acidified cells within the cell body, and inhibiting the activity of the cell's respiratory enzyme system, Blocks the acetyl-CoA condensation reaction and thus serves the purpose of food preservation.