Customization: | Available |
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CAS No.: | 65-85-0 |
Formula: | C7h6o2 |
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Benzoic acid , C7H6O2 (or C6H5COOH), is a colorless crystalline solid and a simple aromatic carboxylic acid. The name is derived from gum benzoin, which was for a long time its only known source. Benzoic acid occurs naturally in many plants and serves as an intermediate in the biosynthesis of many secondary metabolites. Salts of benzoic acid are used as food preservatives and benzoic acid is an important precursor for the industrial synthesis of many other organic substances. The salts and esters of benzoic acid are known as benzoates.
Common Name | benzoic acid | ||
CAS Number | 65-85-0 | Molecular Weight | 122.12 |
Density | 1.2±0.1 g/cm3 | Boiling Point | 249.3±9.0 °C at 760 mmHg |
Molecular Formula | C7H6O2 | Melting Point | 121-125 °C(lit.) |
Items | Index |
Content | 98-100.5% |
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 |