Sodium thiosulfate is a chemical compound primarily used as an antichlor in paper pulp bleaching to neutralize residual chlorine. It is also applied in photographic processing, leather tanning, and wastewater treatment.
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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Ammonium thiosulfate
Fungicide and fertilizer
Sodium thiosulfate pentahydrate
Photographic fixing agent
Calcium thiosulfate
Fungicide in crop protection
Magnesium thiosulfate
Soil amendment fertilizer
Sodium chlorate
oxidizer in pulp and paper processing
Sodium dithionite
reducing agent for textile dyeing and bleaching
Sodium metaborate
Intermediate in borax manufacture
Sodium persulfate
Bleaching and oxidizing agent
The international HS code for SODIUM THIOSULFATE (CAS 7772-98-7) is 2832.30.
2832.30
2832 30 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane
AKHNMLFCWUSKQB-UHFFFAOYSA-L
[O-]S(=O)(=S)[O-].[Na+].[Na+]
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