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Complexes, amines 1664 inorganic acids

Persson BA and Schill G, Extraction of amines as complexes with inorganic anions, Acta Pharm. Suecica, 3, 291-302 (1966). NB No details are given for die measurement of what are described as "approximate acid dissociation constants."... [Pg.547]

Picric acid, also a reagent for spectrophotometric determination of nonionic surfactants, is useful for determination of cationics (126-128). The ion pair of the quaternary amine and picric acid is extracted from the aqueous sample solution into chloroform or 1,2-dichloro-ethane, and the UV absorbance of the phenol read at 365 or 375 nm. The pH range 4-12 is suitable. Nonionic surfactants interfere positively because of their ability to form complexes with inorganic cations. Most such interference can be eliminated by back-washing the extract with pure water before measuring the absorbance (92). Anionic surfactants give negative interference. As noted above, because of the ability of picric acid to detonate when dry, it is not used for routine analysis in North America. [Pg.434]

Aromatic amines form addition compounds and complexes with many inorganic substances, such as ziac chloride, copper chloride, uranium tetrachloride, or boron trifluoride. Various metals react with the amino group to form metal anilides and hydrochloric, sulfuric, or phosphoric acid salts of aniline are important intermediates in the dye industry. [Pg.229]

Alcohols react with boric acid with elimination of water to form borate esters, B(OR)3. A wide variety of borate salts and complexes have been prepared by the reaction of boric acid and inorganic bases, amines, and heavy-metal cations or oxyanions (44,45). Fusion with metal oxides yields... [Pg.193]

Olefins - [FEEDSTOCKS - COALCHEMICALS] (Vol 10) - [FEEDSTOCKS-PETROCHEMICALS] (VollO) - [HYDROCARBONS - SURVEY] (Vol 13) -m automobile exhaust [EXHAUSTCONTROL, AUTOMOTIVE] (Vol 9) -catalyst for stereospeafic polymerization [TITANIUMCOMPOUNDS - INORGANIC] (Vol 24) -esters from [ESTERIFICATION] (Vol 9) -hydroxylation using H202 [HYDROGEN PEROXIDE] (Vol 13) -luminometer ratings [AVIATION AND OTHER GAS TURBINE FUELS] (Vol 3) -osmium oxidations of [PLATINUM-GROUP METALS, COMPOUNDS] (Vol 19) -polymerization [SULFONIC ACIDS] (Vol 23) -reaction with EDA [DIAMINES AND HIGHER AMINES ALIPHATIC] (Vol 8) -silver complexes of [SILVER COMPOUNDS] (Vol 22)... [Pg.700]

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See also in sourсe #XX -- [ Pg.512 ]



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Amines complexes

Inorganic acids

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