Zeolite — Zeolites (Greek, zein , to boil ; lithos , a stone ) are hydrated aluminosilicate minerals and have a micro porous structure. The term was originally coined in the 18th century by a Swedish mineralogist named Axel Fredrik Cronstedt who observed,… … Wikipedia
water softener — noun a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power • Hypernyms: ↑softener • Hyponyms: ↑zeolite * * * ˈwater… … Useful english dictionary
zeolite molecular sieves — are crystalline, highly porous materials, which belong to the class of alumino silicates. These crystals are characterized by a three dimensional pore system, with pores of precisely defined diameter. This diameter is in the dimension of the size … Petroleum refining glossary
zeolite process — noun A water softening process using zeolites (formerly zeolites occurring naturally, now synthetic ones) • • • Main Entry: ↑zeolite … Useful english dictionary
zeolite — [zē′ə līt΄] n. [Swed zeolit < Gr zein, to boil (see YEAST): from its swelling up when heated] 1. any of a large group of natural hydrous aluminum silicates of sodium, calcium, potassium, barium, etc., chiefly found in cavities in igneous rocks … English World dictionary
zeolite — zeolitic /zee euh lit ik/, adj. /zee euh luyt /, n. Mineral. any of a group of hydrated silicates of aluminum with alkali metals, commonly occurring as secondary minerals in cavities in basic volcanic rocks: used for their molecular sieve… … Universalium
water softener — any of a group of substances that when added to water containing calcium and magnesium ions cause the ions to precipitate or change their usual properties: used in the purification of water for the laboratory, and for giving water more efficient… … Universalium
Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… … Wikipedia
zeolite facies — ▪ geology one of the major divisions of the mineral facies classification of metamorphic rocks, the rocks of which formed at the lowest temperatures and pressures associated with regional metamorphism. It represents the transition between… … Universalium
zeolite — A naturally occurring hydrated sodium aluminum silicate, Na2O Al2O3 (SiO2)x (H2O)x, used for softening of hard water by exchanging its Na+ for the Ca2+ of the water; thus z. is an ion exchanger. Some synthetic ion exchangers are termed synthetic… … Medical dictionary