Molekula
Sodium sulfate anhydrous, 99%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium sulfate anhydrous is an inorganic salt widely used as a drying agent, in detergent formulations, and as a filler in paper and textile manufacturing. It is also employed in chemical synthesis and water treatment processes. This product is a white, crystalline solid with a molecular formula of Na2SO4 and a molecular weight of 142.04 g/mol. It has no signal word for hazard classification and can be stored safely at ambient conditions. Molekula supplies Sodium sulfate anhydrous from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
| Chloride (Cl-) | ≤0.1% |
| Bulk density | 1456 kg/m3 |
| Acid insoluble | ≤0.01% |
| Iron (Fe) | ≤2ppm |
| Identification (IR) | Conforms to reference |
| Chromium (Cr) | ≤2ppm |
| Median Particle size | 187um |
| Purity(Na2SO4) | ≥99.0% |
| pH (1% sol.) | 6.0 - 8.0 |
| Ca2+ | ≤0.01% |
| Magnesium ion (Mg2+) | ≤0.01% |
| Particle size 100 - 315um | 65.0% - 70.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White orthorhombic crystals or powder |
| Odour | Odorless |
| Melting Point | 884 °C |
| Density | 2.7 (relative, water = 1) |
| Solubility (other solvents) | Soluble in glycerin; insoluble in alcohol |
| Refractive Index | 1.484 |
Source: PubChem CID 24436 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90029547 |
| CAS Number | 7757-82-6 |
| IUPAC Name | disodium;sulfate |
| EC Number | 231-820-9 |
| Molecular Formula | Na2SO4 |
| Molecular Weight | 142.04 |
| Exact Mass | 141.9313 |
| SMILES | [O-]S(=O)(=O)[O-].[Na+].[Na+] |
| InChIKey | PMZURENOXWZQFD-UHFFFAOYSA-L |
| InChI | InChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| PubChem CID | 24436 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28331150 |
| Tariff Code | 2833110000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Bisodium sulfate
- Disodium sulfate
- Disodium sulphate
- Salt cake
- SODIUM SULFATE
- Sodium sulfate (2:1)
- Sodium sulfate, dried
- Sodium sulphate
- Sodium sulphate anhydrous
- Sulfuric acid disodium salt
Frequently asked questions
What is sodium sulfate anhydrous (99%) commonly used for?
Sodium sulfate anhydrous is primarily used as a drying agent in laboratories, in the manufacturing of detergents, and as a filler in textiles and paper industries.
What is the chemical formula and molecular weight of this product?
The chemical formula is **Na₂SO₄**, and the molecular weight is **142.04 g/mol**.
How should sodium sulfate anhydrous (99%) be stored?
Store at **ambient temperature** in a cool, dry place, away from moisture and incompatible substances.
What purity grade is available for this product?
This product is supplied at **99% purity**, suitable for most industrial and laboratory applications.
Can Molekula supply sodium sulfate anhydrous in bulk quantities?
Yes, we offer bulk quantities of sodium sulfate anhydrous—please contact us for pricing and availability.
What documentation comes with an order of sodium sulfate anhydrous?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.