Let us to know benozic acid
what is the benzoic acid ?
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Product name: Benzoic acid
CAS No.: 65-85-0
Molecular formula: C7H6O2
Properties: Flaky or needle shape crystal, with benzene and formaldehyde smell; lightly soluble in water; soluble in ethyl alcohol, diethyl ether, chloroform, benzene, carbon disulfide and carbon tetrachloride; melting point(℃): 121.7 ; boiling point (℃): 249.2; saturated vapor pressure(kPa): 0.13(96℃); flashing point (℃): 121; ignition temperature (℃): 571; lower explosive limit%(V/V): 11; refractive index: 1.5397nD
What is the main use of benzoic acid ?
Main uses: Benzoic acid is used as bacteriostatic agent of emulsion, toothpaste, jam and other foods; mordant of dyeing and printing; intermediate of pharmaceutical and dyes; for preparation of plasticizer and perfume; steel equipment antirust agent .
Main index:
|
Standard item |
chinese pharmacopoeia 2010 |
British Pharmacopoeia BP 98—2009 |
United States Pharmacopeia USP23—32 |
food additive GB1901-2005 |
E211 |
FCCV |
food additive NY/T1447-2007 |
|
appearance |
white flaky or needle shape crystal |
colorless crystal or white crystal powder |
— |
white crystal |
white crystal powder |
white flaky or needle shape crystal\ |
white crystal |
|
qualification test |
passed |
passed |
passed |
passed |
passed |
passed |
passed |
|
dry basis content |
≥99.0% |
99.0-100.5% |
99.5-100.5% |
≥99.5% |
≥99.5% |
99.5%-100.5% |
≥99.5% |
|
solvent appearance |
— |
clear, transparent |
— |
— |
— |
— |
— |
|
readily oxidizable substance |
passed |
passed |
passed |
passed |
passed |
passed |
passed★ |
|
readily carbonizable substance |
— |
not dark than Y5(yellow) |
not dark than Q(pink) |
passed |
passed |
passed |
— |
|
heavy metal (Pb) |
≤0.001% |
≤10ppm |
≤10ug/g |
≤0.001% |
≤10mg/kg |
— |
≤0.001% |
|
residue on ignition |
≤0.1% |
— |
≤0.05% |
0.05％ |
— |
≤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% () |
— |
≤0.014%★ |
|
arsenic |
— |
— |
— |
≤2mg/Kg |
≤3mg/kg |
— |
≤2mg/Kg |
|
phthalic acid |
— |
— |
— |
passed |
— |
— |
≤100mg/kg★ |
|
sulfate |
≤0.1% |
— |
— |
≤0.05% |
— |
— |
|
|
loss on drying |
— |
— |
≤0.7% (moisture) |
≤0.5% |
≤0.5% |
≤0.7% |
≤0.5% (moisture) |
|
mercury |
— |
— |
— |
— |
≤1mg/kg |
— |
— |
|
lead |
— |
— |
— |
— |
≤5mg/kg |
≤2.0mg/kg☆ |
— |
|
biphenyl |
— |
— |
— |
— |
— |
— |
≤100mg/kg★ |
|
Level/item |
premium grade |
top grade |
|
appearance |
white flaky solid |
white or light yellow flaky solid |
|
content, % ≥ |
99.5 |
99.0 |
|
chromaticity ≤ |
20 |
50 |
|
melting point, ℃ ≥ |
121 |
|
Packaging: woven polypropylene bag with inner polythene film bag
Packaging specification: 25kg, 850*500mm
Why use the benzoic acid? Benzoic Acid Function:
(1) Enhance the performance of pigs, in particular the efficiency of feed conversion
(2) Preservative; Antimicrobial agent
(3) Mainly used for antifungal and antiseptic
(4) Benzoic acid is an important acid type feed preservative
Benzoic acid and its salts have been used for many years as preservative
agents by the food industry, but in some countries also as silage additives, mainly due to their strong efficacy against various fungi and yeasts.