calcium sulphate betydelse and definition

Exempel på calcium sulphate

• The laboratory tests later confirmed that the overlayer is largely composed of hydrated calcium sulphate (gypsum).

• Calcium sulphate, phosphogypsum and calcium carbonate in the amelioration of acid subsoils for growth.

• As calcium sulphate has a relatively high solubility, repeated cycles of water condensation and evaporation could cause localized redistribution of the mineral by dissolution and reprecipitation.

• What are we to do with all of the calcium sulphate that cannot be used on the market?

• Further, there are some important issues regarding the disposal of fly ash and, if limestone is used, of calcium sulphate, which has no market.

• It will involve millions of tons of fresh limestone feedstock and necessitate calcium sulphate waste-disposal management.

• It is an interlocking reinforced, high density calcium sulphate (gypsum) board.

• When sea water evaporates, high concentration and precipitation of calcium carbonate and calcium sulphate result, leading to a hypersaline sodium chloride-rich brine.