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Гипс – Уикипедия
Гипсът е много мек минерал с химична формула CaSO4·2H2O. При нагряване от 107 до 170 °C двухидратният гипс преминава в полихидратен гипс и добива свойството да свързва. От 200 до 250 °C той губи още от намиращата се в него вода и увеличава още свойството да свързва. При 400 °C той напълно губи кристализационната вода и губи св…
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