Magnesium Carbonate CAS#546-93-0
Natural and Synthetic Availability: Magnesium carbonate is both naturally occurring in the form of magnesite and synthetically produced, providing a reliable and sustainable supply.
Versatile Applications: It is widely used in industries such as pharmaceuticals, food production, construction, and cosmetics, due to its ability to act as a drying agent, a filler, and an antacid.
Stable Chemical Properties: With a pKso range of 7.5-8.2, magnesium carbonate is chemically stable and non-reactive under standard conditions, making it ideal for various applications.
High Purity: Synthetic magnesium carbonate is produced to high purity levels, ensuring it meets strict industrial and consumer safety standards.
Magnesium carbonate (MgCO3, pKso=7.5-8.2), a key compound of magnesium, naturally occurs as magnesite. However, the magnesium carbonate used in the United States is entirely synthetically produced. It is primarily obtained through the mining of the natural mineral magnesite. The trihydrate salt, MgCO3·3H2O, is produced by combining magnesium and carbonate ion solutions in the presence of carbon dioxide.
Parameters
Melting point | 990°C |
density | 3.050 |
refractive index | 1.717 |
solubility | Practically insoluble in water. It dissolves in dilute acids with effervescence. |
form | Solid |
color | White |
Odor | at 100.00?%. odorless |
Water Solubility | g MgCO3/100g solution at CO2 pressure, kPa, 18°C: 3.5 (203), 4.28 (405), 5.90 (1010), 7.49 (1820), 7.49 (5670); at 0°C 8.58 (3445), at 60°C 5.56 (3445); soluble acids; insoluble alcohol [HAW93] [KIR81] |
Stability: | Hygroscopic |
InChI | InChI=1S/CH2O3.Mg/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 |
InChIKey | ZLNQQNXFFQJAID-UHFFFAOYSA-L |
SMILES | [Mg+2].C([O-])(=O)[O-] |
LogP | -0.809 (est) |
CAS DataBase Reference | 546-93-0(CAS DataBase Reference) |
NIST Chemistry Reference | Magnesium carbonate(546-93-0) |
EPA Substance Registry System | Magnesium carbonate (546-93-0) |
Safety Information
Safety Statements | 24/25-22 |
OEB | B |
OEL | TWA: 10 mg/m3 (total) |
RTECS | OM2470000 |
HS Code | 28369910 |
Hazardous Substances Data | 546-93-0(Hazardous Substances Data) |
Magnesium carbonate has various applications, including its use in flooring, fireproofing, and fire-extinguishing mixtures. It serves as a filler material and smoke suppressant in plastics, a reinforcing agent in neoprene rubber, and a drying agent that helps with color retention in food products. It is also utilized in cosmetics. In medicine, magnesium carbonate acts as an antacid and is added to table salt. Additionally, it plays a crucial role as a starting material for producing various magnesium compounds.
