دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a substance having marked basic (alkaline) properties, such as a hydroxide of an alkali metal. See base.

n: Any compound having pH properties higher than the neutral state.

a strongly basic solution.

a strongly basic metal such as sodium or potassium.

n: the compoud that containoxide, which react by hydrate of alkali metals and acid of mineral , or oxide of oxide and sulphate or nitrate.

n: a naturally occurring flake material of varying size used in combatting lost circulation. Chemically an alkali aluminum silicate.

a silica mineral, often present as ultra thin flakes and sometimes mobile.

n: one of the alkali metal elements with a valence of 1 and an atomic weight of about 39. Potassium compounds, most commonly potassium hydroxide (KOH),are sometimes added to drilling fluids to impart special properties, usually inhibition.

n: An element with an atomic number of 19. The 40K isotope is radioactive, decaying with the emission of a single gamma ray of 1.46 MeV with a half-life of 1.3 * 109 years to give a stable isotope of argon. Potassium is the largest source of natural radioact

n: (Na) one of the alkali metal elements with a valence of 1, an atomic number of about 23. Numerous sodium compounds are used as additives to drilling fluids.

n: hydrated silicates of aluminum with alkali metals.