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Sodium Dithionite

Sodium Dithionite

CAS Number: 7775-14-6

Molecular Formula: Na2S2O4

About Sodium Dithionite

Sodium dithionite (CAS 7775-14-6) remains a foundational reductive agent in the North American high purity fine chemicals sector, where domestic textile and paper manufacturers are increasingly prioritizing EPA-compliant, high-performance bleaching agents to meet stringent sustainability benchmarks. Sodium hydrosulfite...

Sodium Dithionite Specifications

CAS Number
7775-14-6
Molecular Formula
Na2S2O4
Molecular Weight
174.11 g/mol
IUPAC Name
Disodium dithionite
Canonical SMILES
[O-]S(=O)S(=O)[O-].[Na+].[Na+]
InChI Key
JVBXVOWTABLYPX-UHFFFAOYSA-L
HSN No
28311010
Molecular Weight
174.11 g/mol
Precautionary Statement Codes
P235+P410, P280, P301+P312, P302+P352, P305+P351+P338, and P420
Hazard Classes and Categories
Self-heat. 1, Acute Tox. 4, Skin Irrit. 2, and Eye Irrit. 2

Reducing Agent

A powerful water-soluble reducing agent primarily used in industrial vat dyeing and sulfur dyeing processes to convert insoluble dyes into soluble alkali metal salts

Bleaching Agent

A reductive bleaching agent utilized in the pulp and paper industry to remove yellow discoloration from cellulose-based products and in the textile industry for bleaching cotton, wool, and silk

Oxygen Scavenger

A chemical reagent used to remove dissolved oxygen in boilers and during the production of synthetic rubber to prevent oxidative degradation

Chemical Intermediate

A versatile sulfonating, chelating, and decolourising agent employed in organic synthesis and the production of various chemicals

Laboratory Reagent

A specialized reagent used in physiology and soil chemistry experiments to lower redox potential or determine iron content in primary silicate minerals

Conservation Treatment

A reducing agent used for the removal of iron stains from organic and inorganic substrates, including artifacts made of stone, paper, and leather.

Sodium Dithionite FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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