L-Ascorbic Acid

Minimum Assay: >99-100.5%
Molecular Formula: C6H8O6
Molecular Weight: 176.12 g/mol
Characteristic Appearance: White-almost white crystalline powder        
Identification: Positive reaction
Melting point: 189 - 193˚C
pH (with 2% water solution): 2.4 - 2.8
pH (with 5% water solution): 2.1 - 2.6
Clarity of Solution: Clear  
Colour of Solution: ≤ BY7
Specific Optical Rotation: +20.5o - +21.5o
Copper: <5ppm
Heavy Metals (as Pb): <10 ppm mg/kg
Iron: <2 ppm mg/kg
Arsenic: <3 ppm mg/kg
Lead: <2 ppm mg/kg
Mercury: <0.1mg/kg
Cadmium (Cd): <1 mg/kg
Oxalic Acid: <0.2%
Loss on drying: <0.4%
Organic volatile impurities: Pass
Sulphated Ash (residue on ignition): <0.1%

Cas Number: 50-81-7

Einecs Number: 200-066-2

HS Code / Commodity Code: 2936270000

Hazard Phrases: H0001