Calcium sulfate
Calcium sulfate (CAS: 7778-18-9) is an inorganic salt with the linear formula CaSO₄. Commonly known as gypsum, this compound typically presents as a white powder or chunks. With a molecular weight of 136.14 g/mol, it serves as a fundamental material in various industrial and research applications, including construction, chemical synthesis, and as a component in alternative energy research. Tech Serve Solutions offers Calcium sulfate with a high purity assay.
- IUPAC
- Gypsum

Construction Materials
Calcium sulfate is a key ingredient in plaster and drywall, valued for its ability to harden when mixed with water. This property makes it indispensable in the building industry for creating wallboards and decorative plasters.
Chemical Synthesis
As a versatile inorganic salt, calcium sulfate finds application as a reagent or precursor in various chemical synthesis pathways. Its reliable chemical properties are beneficial for specific reaction chemistries.
Alternative Energy Research
This compound is explored in alternative energy contexts, potentially as a component in battery technologies or other advanced materials. Its involvement in these emerging fields highlights its material science relevance.
Laboratory Reagent
Calcium sulfate serves as a standard laboratory reagent for analytical and experimental purposes. Its consistent quality makes it suitable for diverse research and development activities.
| Molecular weight | 136.14 |
|---|---|
| Linear formula | CaSO4 |
| Assay | 98% |
| Form | powder and chunks |
| Particle size | 10-20 mesh |
Precautionary statements
- P201Obtain special instructions before use
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P308IF exposed or concerned
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Calcium sulfate used for?
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Calcium sulfate is used in construction materials like plaster and drywall, in chemical synthesis, research, and is explored for alternative energy applications.
What is the CAS number and chemical formula for Calcium sulfate?
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The CAS number for Calcium sulfate is 7778-18-9, and its linear formula is CaSO₄.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Calcium sulfate with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling recommendations for Calcium sulfate?
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When handling Calcium sulfate, it is advised to wear eyeshields and gloves, and use a type N95 (US) or type P1 (EN143) respirator filter. Avoid contact with eyes and skin, and prevent release into the environment. Refer to the precautionary statements P201-P261-P273-P280-P305 + P351 + P338-P308 + P313 for detailed guidance.
How is Calcium sulfate packaged and shipped?
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Calcium sulfate is available in powder and chunks forms and is carefully packaged for export and shipping worldwide by Tech Serve Solutions.
How can I request a quote or sample for Calcium sulfate?
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To request a quote or sample for Calcium sulfate, please contact our sales team through the website.
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