Molekula
Sodium sulfate decahydrate
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 decahydrate is a white crystalline solid used in laboratory applications, detergents, and industrial processes. It is a hydrate of sodium sulfate with the molecular formula H20Na2O14S and a molecular weight of 322.2 g/mol. CAS number: 7727-73-3. Stored at ambient temperatures. No signal word applies. Molekula supplies Sodium sulfate decahydrate 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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Specifications
| Property | Value |
|---|---|
| Appearance | White Crystalline powder or crystals |
| pH | 5.2 - 9.2 (5% soln. 25°C) |
| Chloride (Cl-) | ≤5ppm |
| Heavy Metals (Pb) | ≤5ppm |
| Iron (Fe) | ≤5ppm |
| Nitrogen Compounds | ≤5ppm |
| Identification (IR) | Conforms to reference |
| Arsenic (As) | ≤0.5ppm |
| Calcium (Ca) | ≤20ppm |
| Magnesium (Mg) | ≤5ppm |
| Potassium (K) | ≤20ppm |
| Phosphate (PO4)3- | ≤10ppm |
| Titration after Ion exchange | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90030995 |
| CAS Number | 7727-73-3 |
| IUPAC Name | disodium;sulfate;decahydrate |
| Molecular Formula | H20Na2O14S |
| Molecular Weight | 322.2 |
| Exact Mass | 322.0369 |
| SMILES | O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[Na+].[Na+] |
| InChIKey | RSIJVJUOQBWMIM-UHFFFAOYSA-L |
| InChI | InChI=1S/2Na.H2O4S.10H2O/c;;1-5(2,3)4;;;;;;;;;;/h;;(H2,1,2,3,4);10*1H2/q2*+1;;;;;;;;;;;/p-2 |
| PubChem CID | 62649 |
| REACH Code | Y113 |
| HTS Code | 2833.19.00.00 |
| Tariff Code | 2833190000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- Disodium sulfate decahydrate
- Disodium sulfate decahydrate (Na2SO4.10H2O)
- Glaubersalz
- Guna-allergy-prev
- H20Na2O14S
- Na2SO4.10H2O
- Sodium sulfafe decahydrate
- Sodium sulfate (Na2SO4) decahydrate
- Sodium sulfate decahydrate (Na2SO4.10H2O)
- Sulfuric acid sodium salt (1:2), hydrate (1:10)
Frequently asked questions
What is sodium sulfate decahydrate used for?
It is commonly used as a phase change material for thermal energy storage, in the manufacture of detergents, and in the Kraft process for paper pulping.
What is the chemical formula and molecular weight of sodium sulfate decahydrate?
The formula is Na2SO4·10H2O and the molecular weight is 322.2 g/mol.
How should sodium sulfate decahydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available for sodium sulfate decahydrate?
Available in reagent grade and technical grade; please specify your requirement.
Can Molekula supply sodium sulfate decahydrate in bulk?
Yes, we can supply in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of sodium sulfate decahydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.