Merck
All Photos(1)

28-2930

Sigma-Aldrich

Sodium dithionite

CP

Synonym(s):
Sodium hydrosulfite, Sodium hypodisulfite
Linear Formula:
NaO2SSO2Na
CAS Number:
Molecular Weight:
174.11
EC Number:
MDL number:
PubChem Substance ID:

grade

CP

form

powder

availability

available only in Japan

pH

7.0-9.0 (20 °C, 50 g/L)

mp

>300 °C (dec.) (lit.)

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

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Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Self-heat. 1

Supplementary Hazards

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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