Aliquam erat volutpat. Nunc erat massa, porttitor vel egestas sit amet, tristique at massa. Donec posuere odio neque, in ultricies lorem aliquet eu. Donec venenatis libero a nulla placerat egestas.
Aliquam erat volutpat. Nunc erat massa, porttitor vel egestas sit amet, tristique at massa. Donec posuere odio neque, in ultricies lorem aliquet eu. Donec venenatis libero a nulla placerat egestas.
Gypsum is calcium sulfate (CaSO4). Refined gypsum in the anhydrite form (no water) is 29.4 percent calcium (Ca) and 23.5 percent sulfur (S). Usually, gypsum has water associated in the molecular structure (CaSO4·2H2O) and is approximately 23.3 percent Ca and 18.5 percent S (plaster of paris)
CaSO4, 2H20 | 90- 94.21 % (Dry basis) |
T – P2O5 | 0.70 % |
Water-soluble P2O5 | 0.28 % |
Acid-insoluble | 3.58 % |