Na2O4S2
174.11 g/mol
Industrial ChemicalDanger
Sodium dithionite
CAS7775-14-6EC231-890-0
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
reducing agent for textile dyeing and bleaching
Sodium dithionite is a white crystalline powder with a sulfurous odor. It is stable in dry air but decomposes in hot water and acid solutions.
reducing agent for textile dyeingreducing agent for bleaching
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Sodium metaborate
CAS7775-19-1
Intermediate in borax manufacture
ReferenceSame Category
Sodium persulfate
CAS7775-27-1
Bleaching and oxidizing agent
ReferenceSame Category
Calcium sulfate
CAS7778-18-9
Cement and plaster production
ReferenceSame Category
Calcium hypochlorite
CAS7778-54-3
water disinfectant and bleaching agent
Safety Reference
Danger
H251Self-heating; may catch fire
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H402Harmful to aquatic life
H412Harmful to aquatic life with long lasting effects
H303May be harmful if swallowed
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for Sodium dithionite (CAS 7775-14-6) is 2831.10.
HS code (international, 6-digit)
2831.10
EU CN code (8-digit)
2831 10 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
InChIKey
JVBXVOWTABLYPX-UHFFFAOYSA-L
SMILES
[O-]S(=O)S(=O)[O-].[Na+].[Na+]
Synonyms (25)
- Blankit
- Blankit IN
- Burmol
- Disodium dithionite
- Disodium hydrosulfite
- Dithionite, Sodium
- Hydros
- Hydrosulfite R Conc
- Na2 (S2 O4)
- Natriumdithionit
- SODIUM DITHIONITE [MART.]
- SODIUM HYDROSULFITE
- Sodium dithionite
- Sodium dithionite (Na2(S2O4))
- Sodium hydrosulfite (Na2S2O4)
- Sodium hydrosulphite
- Sodium hypodisulfite
- Sodium sulfoxylate
- V-Brite B
- Vatrolite
- sodium dithionit
- sodium sodium hydrosulfite
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