Magnesium acetate

Structural formula
General
Surname	Magnesium acetate
other names	Magnesium diacetate Magnesium Ethanoate ( IUPAC ) MAGNESIUM ACETATE ( INCI )
Molecular formula	C 4 H 6 MgO 4
Brief description	white odorless solid
External identifiers / databases
CAS number 142-72-3 16674-78-5 (tetrahydrate) EC number 205-554-9 ECHA InfoCard 100.005.050 PubChem 8896 ChemSpider 8556 DrugBank DB13996 Wikidata Q418767
properties
Molar mass	142.39 g mol −1
Physical state	firmly
density	1.45 g cm −3
Melting point	80 ° C
boiling point	> 135 ° C (decomposition)
solubility	very soluble in water (1200 g l −1 at 15 ° C)
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Magnesium acetate is a chemical compound from the group of magnesium compounds and acetates . It is the magnesium salt of acetic acid with the constitutional formula Mg (CH ₃ COO) ₂ .

Extraction and presentation

Magnesium acetate can be made by reacting magnesium or magnesium oxide with acetic acid.

${\displaystyle \mathrm {Mg+2\ CH_{3}COOH\rightarrow Mg(CH_{3}COO)_{2}+H_{2}\uparrow } }$

${\displaystyle \mathrm {MgO+2\ CH_{3}COOH\rightarrow Mg(CH_{3}COO)_{2}+H_{2}O} }$

properties

Magnesium acetate is a white, odorless solid. The compound decomposes at temperatures above 135 ° C. It also occurs as a tetrahydrate , which has a monoclinic crystal structure analogous to nickel acetate . The space group is P 2 ₁ / c (No. 14) and two molecules in a group with an edge length of a = 475 pm, b = 1179 pm, c = 852 pm and β = 94 ° 54 '.

use

Magnesium acetate tetrahydrate is used in the manufacture of other chemical compounds and for analysis. In combination with calcium acetate ( calcium magnesium acetate ) it is used as road salt . It can also be used in the dyeing of textiles, as a catalyst in polyester production, in the production of cigarette paper and in offset printing . Medically pure magnesium acetate can be used in dialysis solutions .

In clinical chemistry , it is used together with phosphotungstic acid as a precipitation reagent for ApoB -containing lipoproteins .

Individual evidence

1. ↑ Entry on MAGNESIUM ACETATE in the CosIng database of the EU Commission, accessed on July 2, 2020.
2. ↑ ^{a b} Data sheet magnesium acetate (PDF) from Merck , accessed on January 19, 2011.
3. ↑ ^{a b c d e} Entry on magnesium acetate in the GESTIS substance database of the IFA , accessed on December 22, 2019(JavaScript required) .
4. ↑ Jagdish Shankar, PG Khubchandani, VM Padmanabhan: The crystal structure of magnesium acetate tetrahydrate-Mg (CH ₃ COO) ₂ · 4 H ₂ O . In: Proceedings of the Indian Academy of Sciences - Section A . tape 45 , no. 2 , 1957, p. 117-123 , doi : 10.1007 / BF03052789 .
5. ↑ Todd S. Ing, Mohamed A. Rahman, Carl M. Kjellstrand (Eds.): Dialysis: History, Development and Promise . World Scientific, Singapore 2012, ISBN 978-981-4289-75-7 , pp. 817 ( limited preview in Google Book search).
6. ↑ Axel M. Gressner, Torsten Arndt (Ed.): Lexicon of the Medical Laboratory Diagnostics . 2nd Edition. Springer, Berlin / Heidelberg 2013, ISBN 978-3-642-12921-6 , pp. 1074 , doi : 10.1007 / 978-3-642-12921-6 .