Talc is a white odourless powder at 20 degC and 101.3 kPa. Above 900°C, talc progressively loses its hydroxyl groups . Above 1050°C, talc re-crystallises into different forms of enstatite (anhydrous magnesium silicate). Talc's melting point is at 1500°C.
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Answer:
Talc is a white odourless powder at 20 degC and 101.3 kPa. Above 900°C, talc progressively loses its hydroxyl groups . Above 1050°C, talc re-crystallises into different forms of enstatite (anhydrous magnesium silicate). Talc's melting point is at 1500°C.
Explanation: