دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: calcium carbonate, CaCO3

n: CaCO3, a natural calcium carbonate. Its relative density is from 2.6 to 2.8. A kind of heavy loader.

calcium carbonate, CaCO3. May be rock (limestone) or a scale formed from super saturated solution at the site of a chemical or physical upset.

n: the active ingredient of slaked (hydrated) lime, and the main constituent in cement (when wet). Referred to as lime" in field terminology. Its symbol is Ca(OH)2

n: Ca(OH)2, white powder. The pH value of its saturated solution is 12.4. Usually used for depressant of inorganic salt, calcium mud and clearing excessive carbanion in drill fluid.

Ca(OH)2, slaked lime.

a solid material that drops out of an over saturated solution. Usually driven by an upset of equilibrium.

hardening caused by precipitation of a material (specific element or alloy) from a supersaturated solution.

n: a solution that contains at a given temperature as much of a solute as it can retain. At 68�F (20�C) it takes 126.5 pounds (57.38 kilograms) of salt to saturate 1 barrel (0.1592 cubic metres) of fresh water. See supersaturation.

a solution containing the maximum concentration of a specific ion that it will hold at a certain temperature and pressure without precipitating.