analytical standard
Synonym(s): E224; Potassium metabisulfite; Potassium pyrosulfite
Empirical Formula: K2O5S2
Formula Weight: 222.32
Linear Formula: K2S2O5
MDL Number: MFCD00167605
Purity: ≥98% (RT)
RTECS No.: TT4920000
Signal Word: Danger
Hazard statements: H318
Precautionary statements: P280-P305 + P351 + P338
Supplemental Hazard Statements: Contact with acids liberates toxic gas.
Hazard Codes (Europe) : Xi
Risk Statements (Europe): 31-41
Safety Statements (Europe): 26-39
WGK Germany: 1