Pentoxide

Pentoxide

A compound that is binary and has five atoms of oxygen; for example, phosphorus pentoxide, P₂O₅.

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Industry/Domain: Chemistry
Category: Inorganic chemistry
Company: McGraw-Hill
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pentoxide

Chemistry; Inorganic chemistry

A compound that is binary and has five atoms of oxygen; for example, phosphorus pentoxide, P 2 O 5 .

vanadium pentoxide

Chemistry; Inorganic chemistry

V 2 O 5 A toxic, yellow to red powder, soluble in alkalies and acids, slightly soluble in water; melts at 690_C; used in medicine, as a catalyst, as a ceramics coloring, for ...

arsenic pentoxide

Chemistry; Inorganic chemistry

As 2 O 5 A white, deliquescent compound that decomposes by heat and is soluble in water. Also known as arsenic oxide.

iodine pentoxide

Chemistry; Inorganic chemistry

I 2 O 5 White crystals, decomposing at 275_C, very soluble in water, insoluble in absolute alcohol, ether, and chloroform; used as an oxidizing agent to oxidize carbon monoxide ...

nitrogen pentoxide

Chemistry; Inorganic chemistry

N 2 O 5 Colorless crystals, soluble in water (forms HNO 3 ); decomposes at 46_C. Also known as nitrogen acid anhydride.

phosphorus pentoxide

Earth science; Soil science

P 2 O 5 . Designation on the fertilizer label that denotes the percentage of available phosphorus reported as phosphorus pentoxide.

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.

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