• Thumbnail for Quaternary compound
    a quaternary compound is a compound consisting of exactly four chemical elements. In another use of the term in organic chemistry, a quaternary compound...
    3 KB (304 words) - 08:09, 18 October 2024
  • Thumbnail for Quaternary ammonium cation
    ammonium salts or quaternary ammonium compounds (called quaternary amines in oilfield parlance) are salts of quaternary ammonium cations. Polyquats are a...
    27 KB (2,783 words) - 04:39, 18 September 2024
  • also refer to: Quaternary (chemistry) (see also Quaternary compound and Quaternary phase) Quaternary structure of proteins Quaternary sector of the economy...
    966 bytes (154 words) - 08:29, 20 January 2024
  • Thumbnail for Neuromuscular-blocking drug
    new types of quaternary ammonium muscle relaxants. These are asymmetrical diester isoquinolinium compounds and bis-benzyltropinium compounds that are bistropinium...
    60 KB (6,864 words) - 05:14, 1 August 2024
  • ammonium alkyl- or aryl-substituted compounds ("quats"). Thus the product was originally called ammoniacal copper/quaternary ammonium. The copper in the preparation...
    11 KB (1,331 words) - 13:37, 21 August 2023
  • Thumbnail for Lanolin
    Retrieved 23 May 2011. quaternise: to convert (as an amine) into a quaternary compound "Alkoxylation". BASF. Archived from the original on 16 January 2021...
    19 KB (2,171 words) - 02:41, 10 September 2024
  • GABAPENTIN 218. GALANTHAMINE HYDROBROMIDE 219. GALLAMINE, ITS SALTS, ITS QUATERNARY COMPOUND 220. GANCYCLOVIR 221. GANIRELIX 222. GATIFLOXACIN 223. GEMCITABINE...
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  • a molecule, and determines whether it is a binary compound, ternary compound, quaternary compound, or has even more elements. H − C | H H | − C | H H...
    24 KB (3,205 words) - 14:13, 13 July 2024
  • ternary phases. With four elements, quaternary phases are more complex. The number of isomers of a ternary compound provide a distinction between inorganic...
    5 KB (652 words) - 22:47, 26 August 2024
  • Thumbnail for Choline chloride
    Choline chloride (category Quaternary ammonium compounds)
    Choline chloride is an organic compound with the formula [(CH3)3NCH2CH2OH]+Cl−. It is a quaternary ammonium salt, consisting of choline cations ([(CH3)3NCH2CH2OH]+)...
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  • charged ion (anion) making what is called a nickellate. Numerous quaternary compounds (with four elements) of nickel have been studied for superconductivity...
    55 KB (6,147 words) - 00:16, 23 September 2024
  • Didecyldimethylammonium chloride (category Quaternary ammonium compounds)
    Didecyldimethylammonium chloride (DDAC) is a quaternary ammonium compound used as antiseptic/disinfectant. It causes the disruption of intermolecular interactions...
    5 KB (400 words) - 03:49, 18 September 2024
  • Thumbnail for Quaternary phase
    In materials chemistry, a quaternary phase is a chemical compound containing four elements. Some compounds can be molecular or ionic, examples being...
    848 bytes (70 words) - 08:27, 3 May 2024
  • Thumbnail for History of atomic theory
    second. If two elements can form three compounds between them, then the third compound is a "quaternary" compound containing one atom of the first element...
    70 KB (9,163 words) - 15:14, 12 October 2024
  • Thumbnail for Binary phase
    chemistry, a binary phase or binary compound is a chemical compound containing two different elements. Some binary phase compounds are molecular, e.g. carbon tetrachloride...
    1 KB (115 words) - 17:17, 22 February 2024
  • Indium gallium arsenide phosphide (category Indium compounds)
    a quaternary compound semiconductor material, an alloy of gallium arsenide, gallium phosphide, indium arsenide, or indium phosphide. This compound has...
    2 KB (237 words) - 20:40, 16 January 2024
  • Thumbnail for Choline bitartrate
    Choline bitartrate (category Quaternary ammonium compounds)
    (the "Gold Book") (1997). Online corrected version: (2006–) "quaternary ammonium compounds". doi:10.1351/goldbook.Q05003 "87-67-2 | Choline Bitartrate...
    7 KB (557 words) - 23:00, 12 August 2024
  • Quaternary is a term used in organic chemistry to classify various types of compounds (e. g. amines and ammonium salts). Primary (chemistry) Secondary...
    4 KB (48 words) - 18:06, 19 December 2022
  • alloying multiple compounds, some semiconductor materials are tunable, e.g., in band gap or lattice constant. The result is ternary, quaternary, or even quinary...
    54 KB (2,525 words) - 05:44, 8 October 2024
  • Thumbnail for Polyquaternium-7
    Polyquaternium-7 (category Quaternary ammonium compounds)
    organic compound in the polyquaternium class of chemicals and used in the personal care industry. It is the copolymer of acrylamide and the quaternary ammonium...
    5 KB (410 words) - 17:28, 23 February 2022
  • Thumbnail for Benzalkonium chloride
    of cationic surfactant. It is an organic salt classified as a quaternary ammonium compound. ADBACs have three main categories of use: as a biocide, a cationic...
    39 KB (3,876 words) - 09:27, 4 July 2024
  • Thumbnail for Arsenobetaine
    Arsenobetaine (category Quaternary compounds)
    Arsenobetaine is an organoarsenic compound that is the main source of arsenic found in fish. It is the arsenic analog of trimethylglycine, commonly known...
    6 KB (435 words) - 23:07, 31 May 2023
  • Thumbnail for CZTS
    Copper zinc tin sulfide (CZTS) is a quaternary semiconducting compound which has received increasing interest since the late 2000s for applications in...
    23 KB (2,756 words) - 02:20, 25 July 2024
  • Betaine (category Quaternary ammonium compounds)
    any neutral chemical compound with a positively charged cationic functional group that bears no hydrogen atom, such as a quaternary ammonium or phosphonium...
    6 KB (619 words) - 14:21, 9 June 2024
  • Tetraoctylammonium bromide (category Quaternary ammonium compounds)
    Tetraoctylammonium bromide (TOAB or TOABr) is a quaternary ammonium compound with the chemical formula: [CH3(CH2)7]4N Br. It is generally used as a phase...
    2 KB (44 words) - 19:58, 12 April 2021
  • structural motif, a quaternary nitrogen atom with a carboxylate group attached to it via a –CH2– link. At the present time, all compounds whose structure...
    10 KB (1,075 words) - 21:34, 28 September 2024
  • Thumbnail for Trimethyl ammonium compounds
    Trimethyl ammonium compounds are a type of quaternary ammonium compound with three methyl groups at the nitrogen, with a more complicated carbon chain...
    761 bytes (59 words) - 02:04, 2 July 2023
  • Thumbnail for Quaternary carbon
    to construct asymmetric quaternary carbon atoms. One of the most industrially important compounds containing a quaternary carbon is bis-phenol A (BPA)...
    5 KB (304 words) - 13:02, 27 September 2024
  • Thumbnail for Trimethylamine N-oxide
    Trimethylamine N-oxide (category Quaternary ammonium compounds)
    oxidation of trimethylamine, a common metabolite of trimethyl quaternary ammonium compounds, like choline, trimethylglycine, and L-carnitine. High TMAO...
    16 KB (1,786 words) - 09:14, 2 September 2024
  • cetylpyridinium chloride, benzethonium chloride) and others, non-quaternary compounds, such as chlorhexidine, glucoprotamine, octenidine dihydrochloride...
    10 KB (1,088 words) - 22:28, 3 April 2024