Synonym(s): Potassium pyrosulfite, Potassium disulfite
Formula: K2S2O5
Formula weight: 222.32
Purity: 95+%
CAS Number: 16731-55-8
Harmonized Tariff Code: 2832.20
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.
Risk Phrases: 31-36/37/38
Contact with acids liberates toxic gas. Irritating to eyes, respiratory system and skin.
Safety Phrases: 26-37-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable gloves. This material and/or its container must be disposed of as hazardous waste.