Candidate for RFQ after specification reconciliation

Sodium Sulphate Anhydrous CAS 7757-82-6 Industrial Grade

Name: Sodium Sulphate Anhydrous CAS 7757-82-6 Industrial Grade
Brand: CHN Chemicals sourcing review

Industrial-grade sodium sulphate anhydrous for overseas buyers requiring CAS/spec verification, Na2SO4 purity confirmation, impurity review, export packing options, and document-ready RFQ support. Candidate listing indicates CAS 7757-82-6, formula Na2SO4, white powder appearance, typical purity 98% to 99%, and 25 kg, 50 kg, 500 kg, or 1000 kg bag packing options. Buyer should confirm final COA values, pH basis, chloride limit, moisture, whiteness, HS code, and destination-specific import requirements before purchase.

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.: 7757-82-6Inorganic salt / sodium sulphate anhydrous / industrial gradeCandidate for RFQ after specification reconciliation

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Identity and grade

Typical specifications

CAS No.: 7757-82-6
EINECS No.: 231-820-9
Molecular formula: Na2SO4
Molecular weight: 142.03
Appearance: white powder
Grade: industrial grade
Purity: 98% or 99%; listed standard includes Na2SO4 content ≥99%
Water insoluble: listed as ≤0.046%
Calcium content: listed as ≤0.003%
Magnesium content: listed as ≤0.003%
Chloride content: listing conflict noted; one section states chloride as Cl 0.7% min, another states chloride as Cl ≤0.004%
Iron content: listed as Fe ≤0.0007%

Who uses this page

Target buyers

Detergent and cleaning product raw material importers
Textile and dyeing chemical distributors
Paper and pulp chemical buyers
Glass and ceramics raw material purchasers
Industrial chemical distributors
Synthetic fiber and viscose supply-chain buyers
Commodity inorganic salt traders
Contract manufacturers requiring industrial-grade sodium sulphate

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

Listed packing options include 25 kg plastic woven bags, 50 kg bags, 500 kg flexible freight bags, and 1000 kg jumbo bags.
Transport package also references 25 kg, 50 kg, and 1000 kg bags.
Confirm inner liner, moisture barrier, palletization, container loading quantity, and bag marking requirements before order.
For sea export, request photos or specifications for bag material, stitching/sealing, pallet wrapping, and container moisture-control plan.
Confirm whether neutral OEM packing or buyer label packing is available and whether destination-language labels can be provided.

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 detergent builder or processing raw material where sodium sulphate anhydrous grade is specified
Textile and dyeing auxiliary applications requiring controlled sulphate salt quality
Paper and pulp industrial applications where Na2SO4 purity and insoluble matter are checked
Glass manufacturing raw material supply where chloride, iron, and moisture values may affect acceptance
General industrial formulation supply requiring white powder sodium sulphate anhydrous
Bulk distributor replenishment for regional industrial chemical warehouses

How we compare

Sourcing options

25 kg bags for distributor resale or smaller industrial users
50 kg bags for standard industrial handling and warehouse distribution
500 kg flexible bags for mid-bulk users
1000 kg jumbo bags for containerized bulk import
OEM or buyer-specified packing subject to supplier confirmation
RFQ based on 98% grade or 99% grade with destination-specific documents

Human review

Compliance notes

Verify CAS No. 7757-82-6, product name, grade, and Na2SO4 assay against the supplier COA before contracting.
Request current SDS, COA, TDS/specification sheet, packing list template, commercial invoice template, and certificate of origin if required.
Confirm whether the product is classified as non-dangerous cargo for the selected shipping route and destination; do not rely on marketplace text alone.
Check destination import rules, industrial-use restrictions, labeling requirements, and customs HS code acceptance with a qualified broker.
Supplier page references ISO9001:2015 and audited supplier status; buyer should request valid certificates directly and verify scope and expiry.
No regulatory guarantee is implied; buyer remains responsible for destination compliance, application suitability, and customs clearance.
Because the listing contains conflicting chloride, pH, and whiteness values, final purchase specification should be agreed in writing and matched to batch 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 sulphate anhydroussodium sulfate anhydrousCAS 7757-82-6Na2SO4Glauber salt anhydrousindustrial sodium sulphatedetergent grade sodium sulphateviscose sodium sulphateinorganic sulfate saltHS 283311000

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

Can you provide a recent batch COA showing Na2SO4 assay, moisture, chloride, Fe, Ca, Mg, water insoluble matter, whiteness, and pH with test methods?
Please confirm the final sales specification: purity 98% or 99%, chloride limit, pH range, whiteness requirement, and moisture maximum.
Is the material natural-source or by-product/recovered sodium sulphate, and can you disclose the manufacturing origin type for impurity assessment?
Can you confirm CAS 7757-82-6 and EINECS 231-820-9 on COA, SDS, invoice, and product label?
What packing is available for export: 25 kg, 50 kg, 500 kg, or 1000 kg, and what are the liner and moisture-protection details?
What is the MOQ, lead time, monthly available capacity, and sample policy for overseas buyers?
Can you provide SDS, TDS, COA, ISO certificate, certificate of origin, and non-DG transport statement if applicable?
What HS code will be declared, and has it been used for export to our destination country before?

Checks before quote

Verify CAS No. 7757-82-6, product name, grade, and Na2SO4 assay against the supplier COA before contracting.
Request current SDS, COA, TDS/specification sheet, packing list template, commercial invoice template, and certificate of origin if required.
Confirm whether the product is classified as non-dangerous cargo for the selected shipping route and destination; do not rely on marketplace text alone.
Check destination import rules, industrial-use restrictions, labeling requirements, and customs HS code acceptance with a qualified broker.
Supplier page references ISO9001:2015 and audited supplier status; buyer should request valid certificates directly and verify scope and expiry.
No regulatory guarantee is implied; buyer remains responsible for destination compliance, application suitability, and customs clearance.
Because the listing contains conflicting chloride, pH, and whiteness values, final purchase specification should be agreed in writing and matched to batch 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.