SU401918A1 - METHOD OF COMPLEX DIMENSIONAL DETERMINATION - Google Patents

METHOD OF COMPLEX DIMENSIONAL DETERMINATION

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Publication number
SU401918A1
SU401918A1 SU1617691A SU1617691A SU401918A1 SU 401918 A1 SU401918 A1 SU 401918A1 SU 1617691 A SU1617691 A SU 1617691A SU 1617691 A SU1617691 A SU 1617691A SU 401918 A1 SU401918 A1 SU 401918A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dimensional determination
complex dimensional
determination
ash
zinc
Prior art date
Application number
SU1617691A
Other languages
Russian (ru)
Inventor
В. С. Ривный Е. Ф. Пирго Ф. П. Горбен витель А. И. Посторонко
Ольпг
Original Assignee
Государственный союзный ордена Трудового Красного Знаме Слав нский содовый комбинат
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Priority to SU1617691A priority Critical patent/SU401918A1/en
Application granted granted Critical
Publication of SU401918A1 publication Critical patent/SU401918A1/en

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Description

1one

Изобретение относитс  к аналитической химии , в частности к способам определени  цинка.This invention relates to analytical chemistry, in particular to methods for the determination of zinc.

Известен способ комплексонометрического определени  цинка с применением металлохромных индикаторов. В качестве индикаторов используют эриохром черный Т, дитизон, мурексид и др.The known method for the complexonometric determination of zinc using metallochromic indicators. Eriochrome black T, dithizone, murexide, etc. are used as indicators.

Предлагаемый способ отличаетс  от известного тем, что в качестве индикатора используют 2-окси-3,5-динитро-азо-7-Аш кислоту-пикраминазо-Аш . Это повышает точность анализа .The proposed method differs from that in that 2-hydroxy-3,5-dinitro-azo-7-Ash acid-picraminazo-Ash is used as an indicator. This improves the accuracy of the analysis.

Пример. 5мл раствора сернокислого цинка помещают в коническую колбу емкостьюExample. 5 ml of zinc sulphate solution is placed in a conical flask

100мл, добавл ют 25мл дистиллированной воды , 10 мл аммначно-уксусного буфера с рН 10, 3 капли 0,1 /о-ного водного раствора пикраминазо-Аш и титруют 0,1 н. раствором трилона Б до перехода сннеп окраски в сиреневую. Затем методом расчета наход т содержание цинка в анализируемом растворе.100 ml, 25 ml of distilled water, 10 ml of ammonium acetic buffer with a pH of 10, 3 drops of a 0.1 / aqueous aqueous solution of picraminase-Ash are added and titrated with 0.1N. with a solution of Trilon B before the transition to the color of the dog snake lilac. Then, the zinc content in the analyzed solution is determined by the method of calculation.

Предмет изобретени Subject invention

Способ комплексонометрического определени  цинка с применением металлохромных индикаторов, отличающийс  тем, что, с целью повышени  точности анализа, в качестве индикатора используют 2-окси-3,5-дннитро-азо7-Аш кислоту-пикраминазо-Аш.A method for the complexonometric determination of zinc using metallochromic indicators, characterized in that, in order to increase the accuracy of the analysis, 2-hydroxy-3,5-dinnitroazo-7-Ash acid-picraminazo-Ash is used as an indicator.

SU1617691A 1971-02-01 1971-02-01 METHOD OF COMPLEX DIMENSIONAL DETERMINATION SU401918A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1617691A SU401918A1 (en) 1971-02-01 1971-02-01 METHOD OF COMPLEX DIMENSIONAL DETERMINATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1617691A SU401918A1 (en) 1971-02-01 1971-02-01 METHOD OF COMPLEX DIMENSIONAL DETERMINATION

Publications (1)

Publication Number Publication Date
SU401918A1 true SU401918A1 (en) 1973-10-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1617691A SU401918A1 (en) 1971-02-01 1971-02-01 METHOD OF COMPLEX DIMENSIONAL DETERMINATION

Country Status (1)

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SU (1) SU401918A1 (en)

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