Sodium Metabisulphite Industrial Grade – Identification of Product. Chemical Code: CHE-S27. Chemical Name: Sodium Metabisulphite. Chemical Grade: Industrial Grade. Chemical Formula: Na₂O₅S₂. Chemical Weight: 190,11 g/mol. CAS No: 7681-57-4. Chemical Synonyms: Sodium Disulfite, Sodium Pyrosulfite, Sodium Metabisulfite.
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• Appearance: White crystals or powder
• Odour: Pungent
• pH: 4,5 at 50 g/l at 20 °C
• Melting Point: > 300 °C – lit.
• Relative density: 1,480 g/cm3
• Water solubility: 650 g/l at 20 °C
LD50 Oral – Rat – 1.540 mg/kg (OECD Test Guideline 401). LD50 Dermal – Rat – > 2.000 mg/kg. Eyes – Rabbit Result: Risk of serious damage to eyes. (OECD Test Guideline 405).
• CAS Number: 7681-57-4
• Chemical Formula: Na₂O₅S₂
• Synonyms: Sodium Disulphite, Sodium Pyrosulphite
• Appearance: White crystals or powder
• Odour: Pungent
• pH: 4,5 at 50 g/l at 20 °C
• Melting Point: > 300 °C
• Relative density: 1,480 g/cm3
• Water solubility: 650 g/l at 20 °C