157953
Sodium hydrosulfite
technical grade
Synonym(s):
Sodium hypodisulfite
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About This Item
Linear Formula:
NaO2SSO2Na
CAS Number:
Molecular Weight:
174.11
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-890-0
MDL number:
Assay:
≥82.5% (iodometric)
Grade:
technical grade
Form:
powder
Solubility:
water: soluble(lit.)
grade
technical grade
Quality Segment
assay
≥82.5% (iodometric)
form
powder
pH
7-9 (20 °C, 50 g/L)
solubility
water: soluble(lit.)
cation traces
heavy metals: ≤0.002%
storage temp.
room temp
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])=O
InChI
1S/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
InChI key
JVBXVOWTABLYPX-UHFFFAOYSA-L
General description
Sodium hydrosulfite (Sodium dithionite, Sodium hypodisulfite, Na2S2O4) is a white crystalline sodium salt. It decomposes in the presence of atmospheric oxygen to afford sodium hydrogen sulfate. It has been prepared by reducing sodium hydrogen sulfite in sulfurous acid solution with zinc. It is widely used for the decolorization prior to dyeing of cloths in the textile industry.
Application
Sodium hydrosulfite may be employed as a reducing agent for the reduction of graphite oxide in a study.
Sodium hydrosulfite has been used as a fluorescent quenching agent in the encapsulation of polynucleotides via production of asymmetric nanoparticles. It has also be used in the form of buffer for the elution of probe labelled proteins involved in the indentification of cellular targets of covalent kinase inhibitors via mass spectrometry method (MS).
Sodium hydrosulfite has been used as a fluorescent quenching agent in the encapsulation of polynucleotides via production of asymmetric nanoparticles. It has also be used in the form of buffer for the elution of probe labelled proteins involved in the indentification of cellular targets of covalent kinase inhibitors via mass spectrometry method (MS).
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Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1
supp_hazards
Storage Class
4.2 - Pyrophoric and self-heating hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
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