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2 021 593

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IPC

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Application

4890698/04, 1990-12-17

(22)

Actual filing date

1990-12-17

(45)

Published

1994-10-15

(72)

Inventor

Korenman Ja.I.Kuchmenko T.A.Ermolaeva T.N.Niftaliev S.I.

(73)

Holder

Voronezhskij Tekhnologicheskij Institut

PROCESS FOR DETERMINING PHENOL AND 2,4,6-TRICHLOROPHENOL IN AQUEOUS MEDIA Russian patent published in 1994 - IPC

Abstract RU 2021593 C1

FIELD: analytical chemistry. SUBSTANCE: the process comprises concentration of the compounds being analyzed with butyl alcohol in an amount of 2.6-3.8 wt % in the presence of 40.0-46.2 wt % sodium sulfate in an aqueous phase followed by potentiometric titration of the extract in dimethylformamide with an alkaline solution in isopropyl alcohol. EFFECT: greater efficiency of the process. 1 tbl

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RU 2 021 593 C1

Authors

Korenman Ja.I.

Kuchmenko T.A.

Ermolaeva T.N.

Niftaliev S.I.

Dates

1994-10-15—Published

1990-12-17—Filed

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