Molekula
Anhydrite (Lexan)
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
Anhydrite (Lexan) is a calcium sulfate compound used in industrial applications such as cement production, desiccants, and as a raw material in chemical synthesis. It appears as a white, crystalline solid with no signal word required for handling. CAS: 7778-18-9, molecular formula: CaSO4, molecular weight: 136.14 g/mol, and it should be stored at ambient temperatures. Molekula supplies Anhydrite (Lexan) 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 | White powder |
| Water | ≤2.5% |
| Residue on sieve | ≤1.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Sol anhydrite is obtained in granular or powder form |
| Odour | Pure anhydrous calcium sulfate is odorless |
| Melting Point | 1450 °C |
| Solubility (other solvents) | Slightly soluble in water, insoluble in ethanol |
| Vapour Pressure | 0 mmHg (approx) |
| Refractive Index | 1.521 |
Source: PubChem CID 24497 (HSDB, EU Food Improvement Agents, The National Institute for Occupational Safety and Health (NIOSH))
Identification
| Property | Value |
|---|---|
| SKU | 90024735 |
| CAS Number | 7778-18-9 |
| IUPAC Name | calcium sulfate |
| EC Number | 231-900-3 |
| Molecular Formula | CaSO4 |
| Molecular Weight | 136.14 |
| Exact Mass | 135.9143 |
| SMILES | [O-]S(=O)(=O)[O-].[Ca+2] |
| InChIKey | OSGAYBCDTDRGGQ-UHFFFAOYSA-L |
| InChI | InChI=1S/Ca.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 |
| PubChem CID | 24497 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 25201000 |
| Tariff Code | 2520100000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
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 Anhydrite (Lexan) used for?
Anhydrite (CaSO4) is primarily used as a desiccant, in cement production, and as a raw material in the chemical industry.
What is the chemical formula and molecular weight of Anhydrite (Lexan)?
The chemical formula is CaSO4 and the molecular weight is 136.14 g/mol.
How should Anhydrite (Lexan) be stored?
Anhydrite should be stored at ambient temperature, in a dry, well-ventilated area, away from moisture.
What grade of Anhydrite (Lexan) is available?
Molekula offers Anhydrite (Lexan) in technical grade; specific grades may vary based on customer requirements.
Can Molekula supply Anhydrite (Lexan) in bulk?
Yes, Molekula can supply Anhydrite (Lexan) in bulk quantities; please contact our sales team for pricing and logistics.
What documentation comes with an order of Anhydrite (Lexan)?
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.