Magnesium oxide 98-100.5% [1309-48-4]
Magnesium oxide is used to make cements, castings, fireproof vessels, crucibles. It is used in medicine as a medicine for hyperacidity and intoxication. In photography, it is used to neutralize photographic emulsion. Flash powder is commonly called magnesia. Magnesium oxide is found in nature as a periclase mineral.
Insoluble substances in solution HCl max. 0.02%
Chlorides (Cl) max. 0.01%
Sulphates (SO4) max. 0.02%
Bar (Ba) max. 0.005%
Lead (Pb) max. 0.003%
Calcium (Ca) max. 0.05%
Iron (Fe) max. 0.005%
Appearance white powder
Labels for hazardous chemicals and mixtures that are part of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The pictograms recommended by GHS have the shape of a square set on the top. They should contain a black symbol on a white background with a red border.
Priority rules to be observed in connection with the labeling of a substance:
– the skull and crossbones, the exclamation mark pictogram should not be added.
– corrosivity, the pictogram exclamation mark should not be added if it concerns eye or skin irritation.
– health hazard determining respiratory sensitization, the exclamation mark pictogram should not be added if it concerns skin sensitization or irritation to eyes or skin.
Source: GHS pictograms