Magnesium sulfate monohydrate
Magnesium sulfate monohydrate (CAS: 14168-73-1), with the linear formula MgSO₄·H₂O and a molecular weight of 138.38 g/mol, is an inorganic salt. It serves as a versatile reagent in chemical synthesis and various industrial applications. This compound is essential for numerous processes, functioning as a drying agent and a source of magnesium ions in chemical research and development.
- IUPAC
- Kieserite

Chemical Synthesis
Magnesium sulfate monohydrate is utilised as a drying agent to remove water from organic solvents in synthesis laboratories. Its hygroscopic nature makes it effective for dehydrating reaction mixtures.
Industrial Processes
This compound finds application in various industrial settings, contributing to processes where a source of magnesium or sulfate ions is required. It is a fundamental inorganic salt for diverse manufacturing needs.
Research and Development
In research environments, magnesium sulfate monohydrate is a staple reagent. It is used in experimental procedures and for preparing specific chemical solutions and standards.
| Molecular weight | 138.38 |
|---|---|
| Linear formula | MgSO4 · H2O |
| Assay | 97% |
| Grade | purum |
| Density | 2.57 g/mL at 25 °C(lit.) |
| Melting point | 150 °C (dec.)(lit.) |
| 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 Magnesium sulfate monohydrate used for?
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Magnesium sulfate monohydrate is primarily used as a drying agent in chemical synthesis and in various industrial processes. It is also a key reagent in research and development for preparing magnesium-containing solutions and standards.
What is the CAS number and formula for Magnesium sulfate monohydrate?
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The CAS number for Magnesium sulfate monohydrate is 14168-73-1, and its linear formula is MgSO₄·H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Magnesium sulfate monohydrate with a purity of 97% (purum grade). We do not represent this product as USP, BP, or EP grade.
How should Magnesium sulfate monohydrate be handled safely?
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When handling Magnesium sulfate monohydrate, it is recommended to wear safety eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if dust is generated. Refer to the Safety Data Sheet for comprehensive handling instructions.
Is Magnesium sulfate monohydrate a controlled substance?
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Based on the provided data, Magnesium sulfate monohydrate (CAS: 14168-73-1) is not listed as a controlled substance.
How is Magnesium sulfate monohydrate packed and shipped?
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Magnesium sulfate monohydrate is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions. Specific packaging details can be provided upon request.
How can I request a quote or sample for Magnesium sulfate monohydrate?
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To request a quote or a sample of Magnesium sulfate monohydrate, please contact our sales team through the website or provide your details via the product inquiry form.
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