Study of the interaction in the system Mo(VI) - bis-[2,3,4-trihydroxyphenylazo]benzidine - cation surface active substances
- 1. Bakinskij Gosudarstvennyj Univ., Baku (Azerbaijan)
Description
Reactions in the systems bis[2,3,4-trihydroxyphenylazo]benzidine (H6L) - cationic surfactant (CS = cetylpyridinium chloride (CPCl), cetylpyridinium bromide (CPBr), cetyltrimethylammonium bromide (CTABr)) are considered in the presence and in the absence of Mo(VI). It is found that as stability of associates increases in the series H6L - CPCl > H6L - CPBr > H6L - CTABr the limit of Mo(VI) determination by the reaction of its complex formation with H6L - CS decreases and the stability constants of their complexes increase in the series Mo2(H4L)2 - CPCl > Mo2(H4L)2 - CPBr > Mo2(H4L)2 - CTABr. Foreign and masking substances have been studied for their effect on the complex formation reactions. A procedure of photometric determination of Mo(VI) in volcanogenic rocks is developed
Abstract (Russian)
Исследованы взаимодействия в системах бис-[2,3,4-тригидроксифенилазо]бензидин (H6L) - катионные поверхностно-активные вещества (КЛАВ): хлорид цетилпиридиния ЦПСl, бромид цетилпиридиния ЦПBr, бромид цетилтриметиламмония ЦТАBr в присутствии и в отсутствие молибдена(VI). Установлено, что с увеличением устойчивости ассоциатов (H6L - ЦПCl > Н6L - ЦПBr > Н6L - ЦТАBr) снижается предел обнаружения молибдена(VI) по реакции комплексообразования с Н6L-КПАВ и возрастают константы устойчивости их комплексов в ряду Mo2(H4L)2- ЦПCl > Mo2(H4L)2 - ЦПBr > Мо2(Н4L)2 - ЦТАBr. Изучено влияние посторонних ионов и маскирующих веществ на комплексообразование. Разработана методика фотометрического определения молибдена(VI) в вулканогенной породеAdditional details
Additional titles
- Original title (Russian)
- Исследование взаимодействия в системе молибден(VI) - бис-[2,3,4-тригидроксифенилазо]бензидин - катионные поверхностно-активные вещества
Publishing Information
- Journal Title
- Zavodskaya Laboratoriya
- Journal Volume
- 73
- Journal Issue
- 8
- Journal Page Range
- p. 20-23
- ISSN
- 0321-4265
- CODEN
- ZVDLAU
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 39094906
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACCURACY; AMINES; AZO COMPOUNDS; BROMIDES; CHEMICAL REACTIONS; CHLORIDES; INTERFERING ELEMENTS; MOLYBDENUM COMPLEXES; PHOTOMETRY; POLYPHENOLS; PYRIDINIUM COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; SENSITIVITY; STABILITY; SURFACTANTS; VOLCANIC ROCKS
- Descriptors DEC
- AMINES; AMMONIUM COMPOUNDS; AROMATICS; AZINES; BROMINE COMPOUNDS; CHEMICAL ANALYSIS; CHLORINE COMPOUNDS; COMPLEXES; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; IGNEOUS ROCKS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PHENOLS; PYRIDINES; QUATERNARY COMPOUNDS; ROCKS; TRANSITION ELEMENT COMPLEXES
Optional Information
- Notes
- 12 refs., 6 tabs.