Analysis of information sources in references of the Wikipedia article "Plaster" in English language version.
Hardening stage of plaster of paris is basically a crystalline change in which orthorhombic form of gypsum converts into the monoclinic form of gypsum.
Hardening stage of plaster of paris is basically a crystalline change in which orthorhombic form of gypsum converts into the monoclinic form of gypsum.
The carcinogenic activity of asbestos derives from its morphology, not its chemical nature
The long experience in the manufacture of plaster of Paris presents a consistent record that whenever gypsum is heated at not too high a temperature–usually about 130°–the product formed is invariably the hemihydrate; and further, that if the temperature is permitted to go considerably higher, the product becomes 'dead burned', it has then been converted into anhydrite.
