Packings
05638
Article No. 05638
Purity 99%
Molecular Formula C7H6O3
H.S. Code 2918.2110
Grade Extra Pure
CAS No. 69-72-7
Molecular Weight 138.12
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


Physical Properties

Physical state at 20 °C Solid Colour White powder
Odour Odorless pH value 2.4 at 20 °C
Melting point/ Freezing point [°C] 158 - 161 °C Decomposition point [°C] 211°C
Auto-ignition temperature [°C] 545°C Flash point [°C] 157 °C
Boiling point [°C] 211 °C Vapour pressure mm/Hg 1 mm Hg at 114 °C
Vapour density 4.8 Density [g/cm3] 1.44
Solubility in water [% weight] Partially soluble in water Partition coefficient Log Pow octanol / water at 20°C 2.21
Explosion limits -lower [%] 1.10%

Specifications

Appearance White or almost white, crystalline powder or white or colourless, acicular crystals Assay 99.0 - 100.5%
Identification as per pharma Passes test Appearance of solution Dissolve 1 g in 10 ml of ethanol (96%). Solution is clear & colourless
Melting point 158 - 161°C Related Substances Passes test
Sulphated ash Max 0.1% Heavy metal (as Pb) Max 0.002%
Iron (Fe) Max 0.0002% Chloride (Cl) Max 0.01%
Sulphate (SO4) Max 0.02% Loss on drying (over P2O5, in desiccator) Max 0.5%

Safety Information and Hazard Symbols

Corrosion Exclamation Mark Health Hazard

Symbol: GHS05, GHS07, GHS08
Signal Word: Danger
Hazardous Statement: H302-H318-H361d
Precaution Statement: P202-P280-P301+P312-P305+P351+P338-P308+P313