Molekula
Magnesium acetate tetrahydrate Cryst. powder
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
Magnesium acetate tetrahydrate is a crystalline powder composed of magnesium, acetic acid, and water, primarily used as a de-icing agent, in food preservation, and as a buffering agent in pharmaceuticals. It has a CAS number of 16674-78-5, with the molecular formula (CH3COO)2Mg · 4H2O and a molecular weight of 214.45 g/mol. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies magnesium acetate tetrahydrate 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.
Need a different quantity or pack?
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 crystalline powder |
| Heavy metals | ≤ 10ppm |
| pH | 7.0 - 9.0 (5% aq.) |
| Chloride (Cl-) | ≤ 0.05% |
| Assay | ⩾ 99.0% |
| Iron (Fe) | ≤ 0.001% |
| Sulphates (SO4)(2-) | ≤ 0.2% |
| Identification (RAMAN) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90035023 |
| CAS Number | 16674-78-5 |
| Molecular Formula | (CH3COO)2Mg · 4H2O |
| Molecular Weight | 214.45 |
| SMILES | CC(=O)[O-].CC(=O)[O-].O.O.O.O.[Mg+2] |
| REACH Code | Y113 |
| HTS Code | 2915295000 |
| Tariff Code | 2915290000 |
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, 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
No alternate names recorded for this product.
Frequently asked questions
What is magnesium acetate tetrahydrate commonly used for?
Magnesium acetate tetrahydrate is primarily used as a de-icing agent, in textile flame retardants, and as a food additive (e.g., acidity regulator, firming agent). It is also used in leather tanning and as a laboratory reagent.
What is the chemical formula and molecular weight of magnesium acetate tetrahydrate?
The chemical formula is **(CH₃COO)₂Mg · 4H₂O**, and the molecular weight is **214.45 g/mol**.
How should magnesium acetate tetrahydrate be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grades of magnesium acetate tetrahydrate does Molekula supply?
Molekula supplies **crystal powder grade** magnesium acetate tetrahydrate, suitable for industrial, laboratory, and food-grade applications (where applicable).
Can Molekula supply magnesium acetate tetrahydrate in bulk quantities?
Yes, Molekula can supply magnesium acetate tetrahydrate in **bulk quantities**, with flexible packaging options (e.g., drums, bags) based on customer requirements.
What documentation comes with an order of magnesium acetate tetrahydrate?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability and compliance.
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.