benzoic acid
Benzoic Acid
1. Physical Appearance : White silky flakes or needle-shaped crystals,benzin or benzoic aldehyde savor,soluble in ethanol and slightly soluble in water
2. Molecular formula:C7H6O2
Molecular weight:122.12
CAS :65-85-0
EINECS No.:200-618-2
3. Specification:
|
Benzoic acid index | |
|
Items |
Index |
|
Content |
99-100.5% |
|
Loss on drying |
¡Ü0.5% after drying for three hours over sulphuric acid |
|
Melting range |
121.5-123.5¡ãC |
|
PH |
About 4 (solution in water) |
|
Arsenic |
¡Ü3 ppm |
|
Lead |
¡Ü5 ppm |
|
Mercury |
¡Ü1 ppm |
|
Heavy metal (as pb) |
¡Ü10 ppm |
|
Sulphated ash |
¡Ü0.05% |
|
Positive sublimation test and test for benzoate |
Qualified with regulations |
|
Readily oxidizable substances |
Qualified with regulations |
|
Polycyclic acid |
Pass test |
|
Chlorinated organic compounds |
¡Ü300 ppm |
|
Appearance of solution |
Clarification, colorless |
|
Shelf life |
2 years |
4. Package : 25Kg/bag or as customer¡¯s request
5. Usege: Use as intermediate for dyestuff, paint synthesis, steel antiseptic and plastic intensifier.
