161519
Honeywell

Sodium metabisulfite

SKU
161519
Reagent Grade, 97%
Synonym(s)
Sodium disulfite; Sodium pyrosulfite
  • ≥95% for general laboratory use.
Brand
Honeywell
UNSPSC Code
12352300
CAS Numbers (All) EC Number Linear Formula
Na2S2O5
MDL Number Molar Mass
190.11 g/mol
RTECS Number
UX8225000
Synonyms
Sodium disulfite; Sodium pyrosulfite

Documents

Specifications

PropertyValue
Assay96.5-103.5%

Properties

PropertyValue
Boiling Point/RangeDecomposes on heating
ColorColorless
Density2.36 g/cm3 (20 °C)
FlashpointNot applicable
FormSolid
GradeReagent Grade Salts
Incompatible MaterialsContact with strong acids liberates sulphur dioxide, Oxidizing agents
Lower Explosion LimitNot applicable
Melting Point/Range>150 °C (Decomposes before melting)
Partition Coefficient-3.7
Purity Percentage97
Purity Details97%
Solubility in Water667 g/l (20 °C)
Upper Explosion LimitNot applicable
Vapor PressureNegligible
ViscosityNo data available
pH-Value3.5-5.0 at 50 g/l (20 °C)
Product LineReagent Grade
Storage TemperatureAmbient

Safety Information

PropertyValue
Hazard ClassN/A
Package GroupN/A
UN IDN/A
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