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Zhengzhou Qiangjin Science And Technology Trading Co., Ltd.
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Supply Benzoic Acid 99.5% in Food and Industry Grade
Physical Appearance : White silky flakes or needle-shaped crystals, benzin or benzoic aldehyde savor, soluble in ethanol and slightly soluble in water
Specification:
Benzoic acid index | |
Items | Index |
Content | 99-100.5% |
Loss on drying | ≤0.5% after drying for three hours over sulphuric acid |
Melting range | 121.5-123.5°C |
PH | About 4 (solution in water) |
Arsenic | ≤3 ppm |
Lead | ≤5 ppm |
Mercury | ≤1 ppm |
Heavy metal (as pb) | ≤10 ppm |
Sulphated ash | ≤0.05% |
Positive sublimation test and test for benzoate | Qualified with regulations |
Readily oxidizable substances | Qualified with regulations |
Polycyclic acid | Pass test |
Chlorinated organic compounds | ≤300 ppm |
Appearance of solution | Clarification, colorless |
Shelf life | 2 years |
Usege: Use as intermediate for dyestuff, paint synthesis, steel antiseptic and plastic intensifier.