kalcio boratai — statusas T sritis chemija formulė mCaO·nB₂O₃·xH₂O atitikmenys: angl. calcium borates rus. кальция бораты … Chemijos terminų aiškinamasis žodynas
кальция бораты — kalcio boratai statusas T sritis chemija formulė mCaO·nB₂O₃·xH₂O atitikmenys: angl. calcium borates rus. кальция бораты … Chemijos terminų aiškinamasis žodynas
polymer, inorganic — Introduction any of a class of large molecules that lack carbon and are polymers that is, made up of many small repeating units called monomers (monomer). The word polymer is derived from the Greek term poly, meaning many, and meros, which means … Universalium
luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… … Universalium
BORE — Le bore est l’élément chimique de symbole B et de numéro atomique Z = 5. Bien que sa chimie soit mal connue et en pleine évolution, les emplois de ses dérivés sont anciens, nombreux et importants. Au début du Moyen Âge, on importait en Europe du… … Encyclopédie Universelle
borate mineral — Borate minerals Borate mineralsany of various naturally occurring compounds of boron and oxygen. Most borate minerals are rare, but some form large deposits that are mined commercially. Borate mineral structures incorporate either… … Universalium
industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… … Universalium
MINÉRALOGIE — La minéralogie a pour but l’étude des minéraux, éléments ou composés naturels. Si la notion d’espèce minérale a longtemps varié, depuis quelques décennies les minéralogistes en donnent la définition suivante: un minéral est un solide naturel,… … Encyclopédie Universelle
Boron — (pronEng|ˈbɔərɒn) is a chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron is never found as a free element on… … Wikipedia
Химическая номенклатура — страдает беспринципностью и синонимизмом, благодаря чему она трудна для изучения (ср. отзыв о ней Дюма Орто). Древние называли различные вещества частью по их происхождению, частью по месторождению, частью же употребляли для них случайные… … Энциклопедический словарь Ф.А. Брокгауза и И.А. Ефрона