SU1420501A1 - Method of quantitative analysis of iodine in acetic acid - Google Patents

Method of quantitative analysis of iodine in acetic acid Download PDF

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Publication number
SU1420501A1
SU1420501A1 SU864108998A SU4108998A SU1420501A1 SU 1420501 A1 SU1420501 A1 SU 1420501A1 SU 864108998 A SU864108998 A SU 864108998A SU 4108998 A SU4108998 A SU 4108998A SU 1420501 A1 SU1420501 A1 SU 1420501A1
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SU
USSR - Soviet Union
Prior art keywords
acetic acid
iodine
potential
quantitative analysis
dissociation
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Application number
SU864108998A
Other languages
Russian (ru)
Inventor
Александр Борисович Сухомлинов
Наталья Борисовна Калинченко
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Предприятие П/Я А-7531
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Priority to SU864108998A priority Critical patent/SU1420501A1/en
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Publication of SU1420501A1 publication Critical patent/SU1420501A1/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

Изобретение может быть использовано в отрасл х промышленности. производ щих или потребл ющих уксусную кислоту. Цель изобретени  - обеспечение раздельного определени  концентраций Jj и J -и улучшение условий труда. Поставленна  цель достигаетс  тем, что концентраци  йода в- уксусной кислоте определ етс  пу тем измерени  потенциала йод-селективного электрода сначала в исходном растворе уксусной кислоты, где диссоциаци  молекул рного йода равна 1/2, а затем в уксусной кислоте, в которую добавлена щелочь до рН 3, где диссоциаци  молекул рного йода равна 1. В результате обеспечиваетс  раздельное определение J и J и исключаетс  применение мышь ка. , 1 ил. о фThe invention can be used in industry. producing or consuming acetic acid. The purpose of the invention is to provide a separate determination of the concentrations Jj and J - and the improvement of working conditions. The goal is achieved by the fact that the concentration of iodine in acetic acid is determined by measuring the potential of the iodine-selective electrode first in the stock solution of acetic acid, where the dissociation of molecular iodine is 1/2, and then in acetic acid, to which alkali is added pH 3, where the dissociation of molecular iodine is equal to 1. As a result, a separate determination of J and J is provided and the use of a mouse is excluded. , 1 Il. about f

Description

WW

20 30 ifO 50 Ct -w fimidf20 30 ifO 50 Ct -w fimidf

Claims (1)

Формула изобретенияClaim Способ количественного определения йода в уксусной кислоте путем измерения зависимости потенциала ионоселективного электрода от концентрации ионов йода, отличающийся тем, что, с целью обеспечения раздельного определения концентраций J2 и J“ и улучшения услог вий труда за счет исключения применения мышьяка, измерения потенциала выполняют сначала в исходном растворе, а затем в раствор добавляют щелочь до pH не менее 3 и проводят повторные измерения потенциала.A method for the quantitative determination of iodine in acetic acid by measuring the dependence of the potential of the ion-selective electrode on the concentration of iodine ions, characterized in that, in order to ensure separate determination of the concentrations of J 2 and J “and to improve working conditions by eliminating the use of arsenic, the potential measurements are carried out first in the initial solution, and then alkali is added to the solution to a pH of at least 3 and repeated measurements of the potential are carried out.
SU864108998A 1986-09-20 1986-09-20 Method of quantitative analysis of iodine in acetic acid SU1420501A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU864108998A SU1420501A1 (en) 1986-09-20 1986-09-20 Method of quantitative analysis of iodine in acetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU864108998A SU1420501A1 (en) 1986-09-20 1986-09-20 Method of quantitative analysis of iodine in acetic acid

Publications (1)

Publication Number Publication Date
SU1420501A1 true SU1420501A1 (en) 1988-08-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU864108998A SU1420501A1 (en) 1986-09-20 1986-09-20 Method of quantitative analysis of iodine in acetic acid

Country Status (1)

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SU (1) SU1420501A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Инструкци по эксплуатации установки уксусной кислоты дл Техма- шимпорта/Перевод ОНТИ ШАЛ, т. II, кн. II, 1977, с. 39-45. Зейналова Е.А. и др., Потенцио- метрическое определение различных форм йода в природных водах с. помощью ионоселективных электродов. ЖАХ, 1975, 30, № 5, с. 966-970. *

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