Magnesium acetate
CAS 142-72-3
EC 205-554-9
Formula C2H4O2.1/2Mg
MW 142.39 g/mol
Salts & Minerals Pharmaceuticals & HealthcareFood & NutritionPersonal Care & Cosmetics pH Regulation & BufferingCatalysisPreservation & Biocide
Description
Magnesium acetate (CAS 142-72-3) is the magnesium salt of acetic acid, commonly abbreviated as Mg acetate. It carries no assigned E-code and is also referenced under the names magnesium acetate hydrated and acetic acid magnesium salt. It is commercially available as a tetrahydrate form in addition to the anhydrous grade.
In pharmaceutical manufacturing, magnesium acetate functions as a pH buffer in parenteral formulations, stabilising active ingredients within narrow pH windows. In personal care, it acts as a skin conditioner and mild antimicrobial agent in topical products. It also serves as a catalyst or catalyst precursor in select organic synthesis and polymer processing applications.
Magnesium acetate is supplied in technical, pharmaceutical, and reagent grades, with Ph.Eur.-compliant material available for regulated applications. It falls under REACH registration requirements for EU supply. Packaging is typically offered in multi-kilogram bags or drums suited to industrial procurement volumes.
In pharmaceutical manufacturing, magnesium acetate functions as a pH buffer in parenteral formulations, stabilising active ingredients within narrow pH windows. In personal care, it acts as a skin conditioner and mild antimicrobial agent in topical products. It also serves as a catalyst or catalyst precursor in select organic synthesis and polymer processing applications.
Magnesium acetate is supplied in technical, pharmaceutical, and reagent grades, with Ph.Eur.-compliant material available for regulated applications. It falls under REACH registration requirements for EU supply. Packaging is typically offered in multi-kilogram bags or drums suited to industrial procurement volumes.
Physical Properties
| Melting Point | 80-85 °C |
| Density | 1.18 g/cm³ |
| Appearance | white deliquescent crystals |
| Color | white orthorhombic/monoclinic crystals, crystalline |
| Form | Liquid |
| Water Solubility | Not miscible or difficult to mix with water. |
| Refractive Index | n 20/D 1.358 |
| pH | 7.95(1 mM solution);8.23(10 mM solution);8.41(100 mM solution);8.78(1000 mM solution) |
| Log P | -1.38 |
Trade & Regulatory
| WGK (Germany) | 3 |
Other Names
Magnesium DiacetateMg acetateMg(II) acetateCromosanCromosan*acetatedemagnesiumMAGNESIUM ACETATE, HYDROUS
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Raw Materials
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