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Magnesium acetate tetrahydrate

Basic information Physical Properties Uses Preparation Safety Related Supplier
Magnesium acetate tetrahydrate Basic information
Magnesium acetate tetrahydrate Chemical Properties
Safety Information
  • Safety Statements 22-24/25
  • WGK Germany 3
  • RTECS AI5600000
  • 3
  • TSCA Yes
  • HS Code 29152900
MSDS
Magnesium acetate tetrahydrate Usage And Synthesis
  • Physical PropertiesAnhydrous magnesium sulfate is a white crystalline solid occurring in alpha form as orthorhomic crystals or as a beta form having triclinic structure; density 1.507 and 1.502 g/cm3 for alphaand beta-forms, respectively; decomposes at 323°C; very soluble in water; moderately soluble in methanol (5.25g/100 mL at 15°C).
    The tetrahydrate constitutes colorless monoclinic crystals; hygroscopic; density 1.454 g/cm3; melts at 80°C; highly soluble in water (120 g/100mL at 15°C); very soluble in methanol and ethanol.
  • UsesMagnesium acetate tetrahydrate is used in the manufacture of rayon fiber for cigarette filters; and as a fixative for dyes in textile printing. It also is used as an antiseptic and disinfectant.
  • PreparationMagnesium acetate is prepared by treating magnesium oxide with acetic acid. Magnesium oxide reacts with concentrated acetic acid in boiling ethyl acetate to produce the alpha form of anhydrous magnesium acetate. The beta form is obtained by treating the oxide with 5–6% acetic acid. In slightly hydrated isobutyl alcohol medium the product is a monohydrate, Mg(OOCCH3)2•H2O. In aqueous solution magnesium acetate crystallizes as a tetrahydrate, the commercial product. The tetrahydrate dehydrates to anhydrous salt at 134°C.
  • Chemical PropertiesColourless crystals or white or almost white, crystalline powder.
  • UsesUsed in dialysis solutions.
  • UsesMagnesium acetate [Mg(C2H3O2)2?4H2O] is used in the textile industry as a mordant (“fixes” dyes so that they will not run). It is also used as a deodorant and antiseptic.
  • Purification MethodsCrystallise it from anhydrous acetic acid, then dry it under vacuum for 24hours at 100o. [Nencollas J Chem Soc 744 1956, Beilstein 2 IV 113.]
Magnesium acetate tetrahydrate Preparation Products And Raw materials
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