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Chemical Information
Molecular_Formula Na2O5S2
Density 1.48
Exact_Mass 189.898254
LogP 0.27220
Melting_Point 150 °C
Molecular_Weight 190.107
PSA 124.92000
Water_Solubility 540 g/L (20 ºC)
Safe Information
Risk_Phrases R22;R31;R41
WGK_Germany 1
RTECS UX8225000
Packaging_Group III
Hazard_Codes Xn:Harmful
Safety_Phrases S26-S39-S46
Precautionary_Statements P280-P301 + P312 + P330-P305 + P351 + P338 + P310
Hazard_Statements H302-H318
Symbol GHS05, GHS07
Signal_Word Danger
RIDADR 3260
Personal_Protective_Equipment dust mask type N95 (US);Eyeshields;Gloves
Supplemental_HS Contact with acids liberates toxic gas.
HS_Code 2832100000
Product Information
Flash_Point N/A
Symbol GHS05, GHS07
CAS_Number 7681-57-4
Signal_Word Danger
Common_Name Sodium metabisulfite
Molecular_Formula Na2O5S2
Melting_Point 150 °C
Molecular_Weight 190.107
MSDS ChineseUSA
Density 1.48
Boiling_Point N/A