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 Level
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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Evaluation of asymmetric liposomal nanoparticles for encapsulation of polynucleotides
Whittenton J, et al.
Langmuir, 24(16), 8533-8540 (2008)
A chemoproteomic method for identifying cellular targets of covalent kinase inhibitors
Chen C-Y and Zhang C
Genes & Cancer, 7, 148-148 (2016)
E Gabriele Panarelli et al.
Physical chemistry chemical physics : PCCP, 22(17), 9487-9493 (2020-04-22)
We report on a novel approach to the study of rates and short-lived intermediates of (bio)chemical reactions that involve paramagnetic species. Temperature-cycle Electron Paramagnetic Resonance (EPR) concerns the repeated heating of a reaction mixture in the cavity of an EPR