Silver halide

light sensitive crystals used in photographic emulsions, i.e. silver bromide, silver chloride and silver iodide. The change from white to black metallic silver when exposed to ...

silver halides

Mining; General mining; Mineral mining

Silver bromide, AgBr; silver iodide, AgI; silver chloride, AgCl; and silver fluoride, AgF. The bromide and chloride are sensitive to light and are of basic importance in ...

halide

Engineering; Electronic engineering

A compound of a halogen. Examples: sodium iodide, used as a scintillating crystal; ammonium chloride, used as the electrolyte in a dry cell.

halide

Science; General science

A compound containing one of the halogens (fluorine (F), chlorine (Cl), bromine (Br), iodine (I)) and another element or organic group. Halides have the general formula M x X y ...

yttrium oxide

Chemistry; Inorganic chemistry

Y 2 O 3 A yellowish powder, insoluble in water, soluble in dilute acids; used as television tube phosphor and microwave filters. Also known as yttria.

calcium sulfate

Chemistry; Inorganic chemistry

1. CaSO 4 A white crystalline salt, insoluble in water; used in Keene’s cement, in pigments, as a paper filler, and as a drying agent. 2. Either of two hydrated forms of the ...

magnesium bromide

Chemistry; Inorganic chemistry

MgBr 2 _6H 2 O Deliquescent, colorless, bitter-tasting crystals, melting at 172_C; soluble in water, slightly soluble in alcohol; used in medicine and in the synthesis of organic ...

silicon halide

Chemistry; Inorganic chemistry

A compound of silicon and a halogen; for example, SiBr 4 , Si 2 Br 6 , SiCl 4 , Si 2 Cl 6 , Si 3 Cl 8 , SiF 4 , Si 2 F 6 , SiI 4 , and Si 2 F 6 .

yttrium sulfate

Chemistry; Inorganic chemistry

Y 2 (SO 4 ) 3 _8H 2 O Reddish crystals that are soluble in concentrated sulfuric acid, slightly soluble in water; decomposes at 700_C; used as an analytical reagent.

calcium sulfide

Chemistry; Inorganic chemistry

CaS In pure form, white cubic crystals, slightly soluble in water; used as a base for luminescent materials. Also known as hepar calcies; sulfurated lime.