799394
Sodium bisulfite
anhydrous, free-flowing, Redi-Dri™, ACS reagent
Synonym(s):
Sodium hydrogensulfite
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About This Item
Empirical Formula (Hill Notation):
NaHSO3
CAS Number:
Molecular Weight:
104.06
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21
Grade:
ACS reagent, anhydrous
Form:
powder
Quality Segment
grade
ACS reagent, anhydrous
product line
Redi-Dri™
form
powder
quality
free-flowing
concentration
≥58.5% SO2
impurities
≤0.005% insolubles
pH
4.3 (10 g/L)
anion traces
chloride (Cl-): ≤0.02%
cation traces
Fe: ≤0.002%, heavy metals (as Pb): ≤0.001%
SMILES string
[Na+].OS([O-])=O
InChI
1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2
InChI key
DWAQJAXMDSEUJJ-UHFFFAOYSA-L
General description
Sodium bisulfite is an inorganic sodium salt commonly used as a pH adjuster and reductant. It is used as a cheap catalyst for the formation of C-O and C-C bond.
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
supp_hazards
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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