Molekula
Sodium sulfate (Food grade)
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 (food grade) is an anhydrous inorganic salt widely used as a food additive (E514), in dyeing and sizing textiles, and as a filler in paper production. It acts as a buffering agent, clarifying agent, and laxative in pharmaceuticals. This white crystalline powder has a CAS number of 7757-82-6, with a molecular formula of Na2SO4 and a molecular weight of 142.04 g/mol. It is non-hazardous (no signal word) and stable at ambient storage conditions. Molekula supplies sodium sulfate (food grade) 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.
Need a different quantity or pack?
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
Specifications available on request — see Documents below or contact our sales team.
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 | 90037681 |
| 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
No alternate names recorded for this product.
Frequently asked questions
What is sodium sulfate (food grade) commonly used for?
Food-grade sodium sulfate is primarily used as a drying agent in food processing, a laxative in pharmaceuticals, and in the production of textiles, paper, and detergents.
What is the chemical formula and molecular weight of sodium sulfate?
The chemical formula is **Na₂SO₄**, and the molecular weight is **142.04 g/mol**.
How should sodium sulfate (food grade) be stored?
Store at **ambient temperature** in a cool, dry place, away from moisture and incompatible substances.
What grade of sodium sulfate does Molekula supply?
Molekula supplies **food-grade sodium sulfate**, meeting regulatory standards for use in food, pharmaceutical, and industrial applications.
Can Molekula supply sodium sulfate in bulk quantities?
Yes, we offer **bulk quantities** of sodium sulfate (food grade) to meet large-scale production needs.
What documentation comes with an order of sodium sulfate (food grade)?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.