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Infobox references. Ammonium bromide, NH 4 Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. On exposure to air it gradually assumes a yellow color because of the oxidation of traces of bromide (Br −) to bromine (Br 2).
Infobox references. Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) molecular ion with the chemical formula NH+ 4 or [NH4]+. It is formed by the addition of a proton (a hydrogen nucleus) to ammonia (NH3).
Cetrimonium bromide, also known with the abbreviation CTAB, is a quaternary ammonium surfactant with a condensed structural formula [ (C 16 H 33)N (CH 3) 3]Br. It is one of the components of the topical antiseptic cetrimide. [1] The cetrimonium (hexadecyltrimethylammonium) cation is an effective antiseptic agent against bacteria and fungi.
Quaternary ammonium cation. The R groups may be the same or different alkyl or aryl groups. Also, the R groups may be connected. In organic chemistry, quaternary ammonium cations, also known as quats, are positively-charged polyatomic ions of the structure [NR 4] +, where R is an alkyl group, an aryl group [1] or organyl group.
A bromide ion is the negatively charged form (Br−) of the element bromine, a member of the halogens group on the periodic table. Most bromides are colorless. Bromides have many practical roles, being found in anticonvulsants, flame-retardant materials, and cell stains. [3]
Tetraoctylammonium bromide (TOAB or TOABr) is a quaternary ammonium compound with the chemical formula: [CH 3 (CH 2) 7] 4 N Br. It is generally used as a phase transfer catalyst between an aqueous solution and an organic solution.
Ammonium bromide – NH 4 Br [37] Boron tribromide – BBr 3 [147] Bromic acid – HBrO 3 [163] Bromine monoxide – Br 2 O [164] Bromine pentafluoride – BrF 5 [165]
Chemical formula Synonyms CAS number Ac 2 O 3: actinium(III) oxide: 12002-61-8 AgBF 4: Silver tetrafluoroborate: 14104-20-2 AgBr: silver bromide: 7785-23-1 AgBrO: silver hypobromite: AgBrO 2: silver bromite: AgBrO 3: silver bromate: 7783-89-3 AgBrO 4: silver perbromate: AgCl: silver chloride: 7783-90-6 AgCl 3 Cu 2: dicopper silver trichloride ...