Molekula
Magnesium sulfate anhydrous
Supplying 3,000+ 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
Magnesium sulfate anhydrous is an inorganic salt in powder form, widely used as a magnesium ion source in pharmaceuticals, chemical synthesis, and agricultural treatments. It acts as a drying agent for removing residual water from organic solvents and reaction solutions in laboratory and synthesis work. This high-purity compound has a CAS number of 7487-88-9, molecular formula MgO₄S, and a molecular weight of 120.37 g/mol. It is stable at ambient storage conditions with no hazard classification. Molekula supplies Magnesium sulfate anhydrous from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Magnesium sulfate anhydrous is a white, crystalline powder used in chemical synthesis, pharmaceuticals, and agricultural applications. It serves as a source of magnesium ions and a drying agent. CAS: 7487-88-9, Molecular Formula: MgO₄S, Molecular Weight: 120.37 g/mol, Storage: Ambient, Signal Word: None. Molekula supplies Magnesium sulfate anhydrous from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White granules |
| Chloride (Cl-) | ≤0.001% |
| Assay | ≥99.0% |
| Heavy Metals (Pb) | ≤0.001% |
| Water insoluble matter | ≤0.01% |
| Iron (Fe) | ≤0.001% |
| Arsenic (As) | ≤0.002% |
| Calcium (Ca) | ≤0.05% |
| Manganese (Mn) | ≤0.001% |
| Clarity test | Pass |
| Sodium (Na) | ≤0.03% |
| Phosphate (PO4)3- | ≤0.001% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Orthorhombic crystals |
| Odour | Odorless |
| Melting Point | 1124 °C (decomposition) |
| Density | 2.66 g/cm³ |
| Water Solubility | 360 g/L at 20 °C |
| Solubility (other solvents) | In ether, 1.16 g/100 ml at 18 °C; insoluble in acetone; soluble in alcohol and glycerin |
| Refractive Index | 1.56 |
Source: PubChem CID 24083 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90038481 |
| CAS Number | 7487-88-9 |
| IUPAC Name | magnesium sulfate |
| EC Number | 231-298-2 |
| Molecular Formula | MgO₄S |
| Molecular Weight | 120.37 |
| Exact Mass | 119.9368 |
| SMILES | [O-]S(=O)(=O)[O-].[Mg+2] |
| InChIKey | CSNNHWWHGAXBCP-UHFFFAOYSA-L |
| InChI | InChI=1S/Mg.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 |
| PubChem CID | 24083 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2833.21.0000 |
| Tariff Code | 2833210000 |
Safety & GHS
Precautionary statements
- 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
- MAGNESIUM SULFATE
- Magnesium sulfate (1:1)
- Magnesium(II) sulfate
- Magnesiumsulfat
- MgSO4
- Sal Angalis
- Sal De sedlitz
- Sulfuric acid magnesium salt
- Sulfuric acid magnesium salt (1:1)
- Tomix OT
Frequently asked questions
What is magnesium sulfate anhydrous commonly used for?
Magnesium sulfate anhydrous is primarily used as a drying agent for organic solvents and solutions in chemical synthesis and pharmaceutical manufacturing, as a food additive (e.g., firming agent in tofu), and in industrial applications like water treatment and textile dyeing.
What is the chemical formula and molecular weight of magnesium sulfate anhydrous?
The chemical formula is MgSO₄, also written as MgO₄S in Hill notation, and the molecular weight is 120.37 g/mol.
How should magnesium sulfate anhydrous be stored?
Store in a cool, dry place at ambient temperature, sealed in airtight containers to prevent moisture absorption.
What grades of magnesium sulfate anhydrous does Molekula supply?
Molekula supplies **pharmaceutical grade** and **industrial grade** magnesium sulfate anhydrous; contact us for specifications.
Can Molekula supply magnesium sulfate anhydrous in bulk quantities?
Yes, we offer bulk quantities (minimum order quantities vary by grade; inquire for details).
What documentation comes with an order of magnesium sulfate anhydrous?
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.