Magnesium carbonate CAS NO.546-93-0

Molecular Formula:CO3?Mg Molecular Weight:84.32 MSDS: View Properties:Very light-weight, white powder; odorless. Decomp on heating with CO2 loss. R…

Molecular Formula:CO3?Mg Molecular Weight:84.32 MSDS: View Properties:Very light-weight, white powder; odorless. Decomp on heating with CO2 loss. Readily dissolves in aq acids forming the corresponding salts. D: 3.04, decomp @ 350°. Sol in acids; insol in water, alc, Me2CO, and NH3. Use:To make the various grades of magnesium oxide, to produce carbon dioxide, refractory. Occurrence:U.S. (California, Washington, Nevada), Austria, Greece. Standards:OSHA PEL: TWA Total Dust: 15 mg/m3; Respirable Fraction: 5 mg/m3 ACGIH TLV: TWA (nuisance particulate) 10 mg/m3 of total dust (when toxic impurities are not present, e.g., quartz <1%)