Magnesium acetate tetrahydrate

CAS Number
16674-78-5
EC Number
605-451-2

What is Magnesium acetate tetrahydrate?

Magnesium acetate tetrahydrate (CAS 16674-78-5) is a magnesium salt of acetic acid in its stable, water-bearing crystalline form.

Where is Magnesium acetate tetrahydrate used?

  • Pharmaceutical and topical preparations: pH-buffering excipient
  • Biotechnology and molecular biology: enzyme reaction buffers and nucleic acid precipitation protocols
  • Personal care: moisture retention and pH stabilisation in skin-conditioning formulations
  • Food and dietary supplements: magnesium source and acidity regulator
  • It functions as a buffering agent, humectant, and process catalyst.

Commercial specifications

  • Packaging ranges from laboratory quantities to bulk industrial supply

Other Names (Synonyms)

Magnesium diacetate tetrahydrate|Acetic acid, magnesium salt, tetrahydrate|I01G0EJC3B|MAGNESIUM ACETATE (MG(OAC)2) TETRAHYDRATE|MAGNESIUM ACETATE TETRAHYDRATE (EP MONOGRAPH)|Magnesia Acetica|RefChem:58379|Acetic acid, magnesium salt, hydrate (2:1:4)

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What are the physical properties of Magnesium acetate tetrahydrate?

Melting Point 80 °C
Density 1.164 g/cm³ @ Temp: 25 °C
Appearance White Crystal
Color White
Odor Acetic odour
Form lyophilized powder
Water Solubility 1200 g/L (15 ºC)
Refractive Index n 20/D 1.358
pH 6.1 (50g/l, H2O, 20℃)

Which trade and regulatory codes apply to Magnesium acetate tetrahydrate?

HS Code 29152900
Storage Class 13 - Non Combustible Solids
WGK (Germany) 3
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