Magnesium acetate tetrahydrate Chemical Properties

Melting point:

72-75 °C(lit.)

Density 

1.454

refractive index 

n20/D 1.358

storage temp. 

Store at +15°C to +25°C.

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

lyophilized powder

color 

White

Specific Gravity

1.454

Odor

Acetic odour

PH Range

7 - 9

PH

6.1 (50g/l, H2O, 20℃)

Water Solubility 

1200 g/L (15 ºC)

Sensitive 

Hygroscopic

Merck 

14,5654

BRN 

3730605

Stability:

Hygroscopic

InChIKey

XKPKPGCRSHFTKM-UHFFFAOYSA-L

CAS DataBase Reference

16674-78-5(CAS DataBase Reference)

NIST Chemistry Reference

Magnesium diethanoate tetrahydrate(16674-78-5)

EPA Substance Registry System

Magnesium acetate tetrahydrate (16674-78-5)

Safety Information

Safety Statements 

22-24/25

WGK Germany 

3

RTECS 

AI5600000

F 

3

TSCA 

Yes

HS Code 

29152900

MSDS

• Language:English Provider:Magnesium acetate hydrated
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Magnesium acetate tetrahydrate Usage And Synthesis

Physical Properties

Anhydrous 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.

Uses

Magnesium 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.

Preparation

Magnesium 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 Properties

Colourless crystals or white or almost white, crystalline powder.

Uses

Used in dialysis solutions.

Uses

Magnesium 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.

Uses

Used as a source of magnesium in biological reactions, and as a source of acetate ion in chemical transformations. Acts as an emission control agent in coal combustion process to reduce acid rain. It is involved in glass formation process via the thermal decomposition of solids.

Purification Methods

Crystallise 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(16674-78-5)Related Product Information

• Butyl acetate
• Magnesium acetate
• Ethyl acetate
• Ethyl 2-(Chlorosulfonyl)acetate
• Indole-3-acetic acid
• Trichloroacetic acid
• Trifluoroacetic acid
• Glycine
• Magnesium stearate
• Magnesium sulfate heptahydrate
• Magnesium sulfate
• Magnesium oxide
• Acetic acid
• Calcium hydroxide
• CERIUM(III) ACETATE HYDRATE
• Cobalt acetate
• Calcium acetate monohydrate
• Magnesium nitrate