Catalog Number
ACMA00017003
Product Name
Magnesium Carbonate
Description
Magnesite appears as white, yellowish, grayish-white or brown crystalline solid or crystalline powder. Density: 3-3.1 g cm-3. An important ore for magnesium. Used in the manufacture of materials capable of withstanding very high temperatures. Sometimes used to produce carbon dioxide.;DryPowder; Liquid; OtherSolid; PelletsLargeCrystals;Odourless, light, white friable masses or as a bulky white powder;WHITE POWDER.;White, odorless, crystalline powder.;White, odorless, crystalline powder.
IUPAC Name
magnesium;carbonate
Molecular Weight
84.31g/mol
Molecular Formula
MgCO3? nH₂O;MgCO3;MgCO3;CMgO3
Canonical SMILES
C(=O)([O-])[O-].[Mg+2]
InChI
InChI=1S/CH₂O3.Mg/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI Key
ZLNQQNXFFQJAID-UHFFFAOYSA-L
Boiling Point
Decomposes (NIOSH, 2016);Decomposes;Decomposes;Decomposes
Melting Point
662 °F (Decomposes) (NIOSH, 2016);Decomposes at 350;Mp 350 ° dec.;990 °C;662°F (decomposes);662°F (Decomposes)
Density
2.96 (NIOSH, 2016);3.0;Relative density (water = 1): 2.95;2.96;2.96
Solubility
0.01 % (NIOSH, 2016);0.1g/L;Practically insoluble both in water or ethanol;0.0106 G/100 CC COLD WATER;SOL IN ACID, AQ CARBON DIOXIDE; INSOL IN ACETONE, AMMONIA;Insoluble in alcohol; soluble in acids;Solubility in water, g/100ml at 20 °C: 0.01 (very poor);0.01%
Color/Form
Light, bulky, white powder
Covalently-Bonded Unit Count
2
EC Number
208-915-9;208-915-9;231-817-2;307-549-8;604-004-9
MeSH Entry Terms
anhydrous magnesium carbonate;C.I. 77713;carbonic acid, magnesium salt (1:1), hydrate;CI 77713;E-504;magnesite;magnesite (Mg(CO3));magnesium carbonate;magnesium carbonate (1:1) hydrate;magnesium carbonate anhydrous;MgCO3.3H₂O;nesquehonite
Monoisotopic Mass
83.969786g/mol
Other Experimental
HEATED ... MAGNESIUM BICARBONATE LOSES CARBON DIOXIDE & WATER & MAGNESIUM CARBONATE PPT. ... GENERALLY YIELDS LIGHT CARBONATE.;Bulk density approximately 4 lb/cu ft;Heat of Formation = -1096 kJ/mol;White, friable masses or bulky, white powder; at about 700 °C is converted to MgO; sol in about 3,300 parts CO2-free water; more sol in water containing CO2; sol in dilute acids with effervescence; insol in alcohol /Magnesium carbonate hydroxide/;Colorless crystals; refractive index: 1.458, 1.473, 1.501; density: 2.83 g/cu-cm /Dihydrate/;Colorless to white crystals; density: 1.84 g/cu cm; MP: 165 °C (decomp); soluble in cold water (0.129 wt%) /Trihydrate/;White monoclinic crystals; density: 1.73 g/cu cm /Pentahydrate/
Refractive Index
Index of refraction: 1.536 (alpha), 1.741 (beta)
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx)
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