Calcium oxide: CaO (flux)

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hazard description- corrosive, causes burns

physical properties- whitish odorless powder

acute effects- irritant & corrosive to skin, eyes & respiratory tract

symptoms of overexposure- may cause nausea, gastric or intestinal disorders, breathing difficulty, and coughing

if overexposed- do not induce vomiting, seek medical attention

sources- whiting, dolomite, wollastonite, some feldspars, cornwall stone