Sodium metabisulphite, dry 98-100.5%, Puriss. p.a. ACS, Reag. Ph. Eur., Fluka™
Supplier: Honeywell Chemicals
Certificates
About this item
CAS Number:7681-57-4
:
Formula:Na₂S₂O₅
MDL Number:MFCD00167602
:190.11 g/mol
Merck Index:12,08784
Boiling Pt: Dec. (on heating)
Melting Pt:>150 °C (dec.)
Density:2.36 g/cm³ (20 °C)
Storage Temperature:Ambient
EINECS:231-673-0
REACH:01-2119531326-45
:GHS07
:GHS05
Specification Test Results
- Assay:98.0 - 100.5 %
- pH (5 %, 20°C):3.5 - 5.0
- Arsenic (As):Max. 0.5 ppm
- Calcium (Ca):Max. 0.005 %
- Cadmium (Cd):Max. 0.005 %
- Cobalt (Co):Max. 0.005 %
- Copper (Cu):Max. 0.0005 %
- Iron (Fe):Max. 5 ppm
- Potassium (K):Max. 0.01 %
- Nickel (Ni):Max. 0.005 %
- Lead (Pb):Max. 0.0005 %
- Zinc (Zn):Max. 0.001 %
- Heavy metals (as Pb):Max. 10 ppm
- Chloride (Cl):Max. 0.005 %
- Thiosulfate (S₂O₃):complying
- Water insoluble matter:Max. 0.005 %
- Appearance of the solution:complying
Specification Test Results
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