CCHN ChemicalsChemical export sourcing from ChinaStart RFQ
Sodium Hydrosulfite Industrial Grade CAS 7775-14-6 sourcing visualHuman review
Back to sourcing hubTextile / Paper

Sodium Hydrosulfite Industrial Grade CAS 7775-14-6

Industrial grade sodium hydrosulfite, also known as sodium dithionite, offered as powder with stated assay options of 85%, 88%, and 90% min. Buyer checks should focus on CAS 7775-14-6 confirmation, Na2S2O4 assay basis, moisture/insoluble matter, decomposition-related impurities, packing integrity, COA/SDS readiness, and export/DG classification before RFQ placement.

Quick buying facts

Identify the grade, package, and import market before comparing suppliers.

Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.

CAS No.: 7775-14-6Inorganic reducing salt / industrial chemicalHuman review
Request quoteOpen sourcing hub
Identity and grade

Typical specifications

  • CAS No.: 7775-14-6
  • Chemical name: Sodium hydrosulfite / sodium dithionite
  • Formula: Na2S2O4
  • EINECS: 231-890-0
  • Appearance: Powder
  • Grade: Industrial grade
  • Assay options stated by source: 85%, 88%, 90% min
  • Certification mentioned by source: ISO
  • Model/SID reference: F0157006
Who uses this page

Target buyers

  • Textile printing and dyeing chemical distributors
  • Industrial chemical importers
  • Leather processing chemical buyers
  • Paper and pulp auxiliary chemical buyers
  • Water treatment chemical suppliers where legally applicable
  • Regional distributors requiring industrial reducing salts
Before matching

Documents to check

  • CAS number, grade, assay, and impurity profile
  • SDS, COA, TDS, HS code, and transport classification
  • Destination-market import documents before supplier matching
Package and route

Packing notes

  • Source listing states iron drum with inner plastic bags, 50 kg net per drum.
  • Confirm palletization, drum sealing method, liner material, and moisture protection before shipment.
  • Request photos of current export packing and marks for the exact lot offered.
  • Confirm container loading plan, shelf-life statement, and storage-in-transit precautions suitable for the destination route.
Applications and sourcing options

Check whether this product fits the buyer's actual application.

Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.

Use context

Common applications

  • Industrial textile dyeing and discharge printing supply chains
  • Leather and fiber processing chemical procurement
  • Industrial reducing agent distribution
  • Formulation plants requiring verified sodium hydrosulfite assay and impurity controls
  • Bulk import programs requiring drum-packed inorganic salts
How we compare

Sourcing options

  • Assay selection: 85% min, 88% min, or 90% min subject to supplier confirmation
  • Packing option stated: 50 kg net iron drum with inner plastic bags
  • Trade terms stated by source: FOB, CIF, CFR, EXW
  • China origin supply with potential shipment via major China ports
  • RFQ route: request batch COA, SDS, DG/export documents, packing photos, and firm validity pricing
Human review

Compliance notes

  • Request current SDS, COA, TDS, packing list template, and transport classification details before ordering.
  • Confirm whether the offered lot is classified as dangerous goods for the intended transport mode and destination jurisdiction.
  • Ask supplier to provide UN number, hazard class, packing group, HS code, and any carrier restrictions applicable to sodium hydrosulfite shipments.
  • Verify REACH, KKDIK, K-REACH, or other registration coverage only where relevant to the buyer's destination and use; do not rely on platform text as a regulatory guarantee.
  • Check destination import controls, customs documentation requirements, and buyer-side licensing obligations before purchase.
  • Ensure product identity and assay are verified against CAS 7775-14-6 and Na2S2O4 specifications in the COA.
Buyer search paths

Related sourcing terms

These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.

sodium hydrosulfitesodium hydrosulphitesodium dithioniteCAS 7775-14-6Na2S2O4industrial grade sodium hydrosulfitesodium hydrosulfite 88%sodium hydrosulfite 90%reducing salttextile dyeing chemical
Related product options

Build a broader quote package from adjacent options.

Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.

Sodium Hydrosulfite 88% sourcing visual
Textile and paper auxiliary

Sodium Hydrosulfite 88%

Textile and paper chemical sourcing page for reduction, bleaching, and stripping applications where assay, stability, and package path matter.

Textile/Leather Auxiliary Fatliquor RG-RNR/380, Anionic Liquid, CAS 9003-01-4 Check Required sourcing visual
Anionic textile/leather auxiliary liquid, fatliquor/emulsifying auxiliary candidate

Textile/Leather Auxiliary Fatliquor RG-RNR/380, Anionic Liquid, CAS 9003-01-4 Check Required

Candidate sourcing page for an anionic liquid auxiliary listed as RG-RNR/380, described by the source as a soft leather fatliquor with emulsification and dispersion performance for synthetic, mineral, and natural oils. The source title references textile pretreatment/desizing, while the product description is mainly leather fatliquor, so buyers should verify intended application, CAS assignment, product identity, grade, and specification sheet before RFQ or import review.

Sodium Hydrosulfite CAS 7775-14-6 Industrial Grade Export Supply sourcing visual
Inorganic reducing agent / sodium hydrosulfite / sodium dithionite candidate

Sodium Hydrosulfite CAS 7775-14-6 Industrial Grade Export Supply

Industrial-grade sodium hydrosulfite candidate for overseas buyers requiring CAS confirmation, reducing-agent performance checks, export documentation, and DG-aware packing review. Supplier page lists CAS 7775-14-6, formula Na2O4S2, purity ≥99%, light yellow crystal or powder appearance, and 25 kg/50 kg bag or paper drum packing, but the listing contains several specification inconsistencies that should be clarified before RFQ or sampling.

Water Decoloring Agent DCA Liquid CAS 55295-98-2 for Textile and Dye Wastewater Applications sourcing visual
Water treatment chemical / decoloring agent / cationic polymer flocculant

Water Decoloring Agent DCA Liquid CAS 55295-98-2 for Textile and Dye Wastewater Applications

Sourcing candidate for a liquid water decoloring agent identified as DCA / quaternary amine organic polymer flocculant, offered for textile, dyestuff, paper, and industrial wastewater color-removal applications. Buyers should confirm CAS 55295-98-2, active/solid content, pH, viscosity, impurity limits, packing format, SDS/COA readiness, HS code, and export transport classification before RFQ or sampling.

RFQ questions before supplier matching

Turn this product into a quote request.

Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.

Questions to confirm
  • Which assay is available for the current lot: 85%, 88%, or 90% min, and what is the tested value on COA?
  • What are the limits and actual results for moisture, insoluble matter, sodium sulfite, sodium thiosulfate, and other relevant impurities?
  • Is the product supplied as sodium hydrosulfite CAS 7775-14-6 with formula Na2S2O4, and can the supplier provide a recent COA matching batch number?
  • What is the shelf life from production date under sealed export packing?
  • Can the supplier provide SDS, TDS, DG declaration or non-DG statement if applicable, certificate of origin, and ISO certificate copy?
  • What are the confirmed Incoterms available for this item: FOB, CIF, CFR, or EXW?
  • Which China port is available for shipment, and is the product stocked near Tianjin, Shanghai, or Qingdao?
  • Can the supplier confirm minimum order quantity, lead time, sample availability, and current export packing photos?
Checks before quote
  • Request current SDS, COA, TDS, packing list template, and transport classification details before ordering.
  • Confirm whether the offered lot is classified as dangerous goods for the intended transport mode and destination jurisdiction.
  • Ask supplier to provide UN number, hazard class, packing group, HS code, and any carrier restrictions applicable to sodium hydrosulfite shipments.
  • Verify REACH, KKDIK, K-REACH, or other registration coverage only where relevant to the buyer's destination and use; do not rely on platform text as a regulatory guarantee.
  • Check destination import controls, customs documentation requirements, and buyer-side licensing obligations before purchase.
  • Ensure product identity and assay are verified against CAS 7775-14-6 and Na2S2O4 specifications in the COA.
Next step

Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.