دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: CaSO4, microsolubility. Used for depressant of inorganic salt. Usually used for gypse drill fluid.

gyp or anhydrite, CaSO4.

calcium sulfate

n: a naturally occurring crystalline fom1 of calcium sulphate in which each molecule of calcium sulphate is combined with two molecules of water. See anhydrite. calcium sulphate.

n: a naturally occuring crystalline form of hydrous calcium sulfate.

a common form of calcium sulfate precipitate or scale. CaSO4-H2O.

n: a compound that is formed (along with water) by the reaction of an acid with abase. A common salt (table salt) is sodium chloride, Naa, derived by combining hydrochloric acid, Ha, with sodium hydroxide, NaOH. The result is sodium chloride and water, H2O. This process is written chemically as Ha + NaOH ~ NaCI + H2O. Another salt is calcium sulfate, CaS�4, obtained when sulfuric acid, H2SO4 is combined with calcium hydroxide, Ca (OH)2

n: a compound containing the SO4 group, as in calcium sulfate (CaSO4).

n: All kinds of sulphuric acid salts


one of several minerals containing sulfur ions bonded to oxygen atoms.