... quality mgco3 powder, being used as raw material to manufacture electronic components... Physicochemical Properties: White amorphous powder, nontoxic, odorless, stable in ... manufacture. And it also can be used to manufacture high-grade glass articles, magnesium salt, pigment, paint and chemicals for ... , etc. Processing Method: Brine, Soda Method, Ammonium Bicarbonate Method. MgCO3, Electronic Grade