SU132432A1 - Method for quantitative determination of fluorine - Google Patents

Method for quantitative determination of fluorine

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Publication number
SU132432A1
SU132432A1 SU651810A SU651810A SU132432A1 SU 132432 A1 SU132432 A1 SU 132432A1 SU 651810 A SU651810 A SU 651810A SU 651810 A SU651810 A SU 651810A SU 132432 A1 SU132432 A1 SU 132432A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fluorine
quantitative determination
solution
cones
solutions
Prior art date
Application number
SU651810A
Other languages
Russian (ru)
Inventor
И.Г. Ижак
Original Assignee
И.Г. Ижак
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by И.Г. Ижак filed Critical И.Г. Ижак
Priority to SU651810A priority Critical patent/SU132432A1/en
Application granted granted Critical
Publication of SU132432A1 publication Critical patent/SU132432A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Известны способы ооличественного определени  фтора фотоколиметрическим методом, основа ные на способности фтора обесцвечивать окрашенное комплексное соединение ци)конн  с органическими веществами .There are known methods for the quantitative determination of fluorine by a photocolimetric method, based on the ability of fluorine to discolor a colored complex compound qi with organic substances.

Предлагае.мый способ по сравнению с известными  вл етс  более простым и более точным.The suggested method is that it is simpler and more accurate than the known ones.

ОтличИтельна  особенность CHCCcja заключаетс  щ том, что в качестве органического вещества, дающего окрашенное комплексное соединение с цирконием, используют арсеиазо бензол-2-арсонова  кислота- (1-азо-2)-1,8-дИОксинафталин-З. 6-дисульфокислота.A distinctive feature of CHCCcja is that arseiazo benzene-2-aronic acid- (1-azo-2) -1,8-di-oxo-naphthalene-3 is used as an organic substance that produces a colored complex with zirconium. 6-disulfonic acid.

Спсгоб осуществл етс  следую1 и м образом.The procedure is carried out in the following manner.

1. Методика определени  фтора п11и соде ржанин его в анал ;зируе .мых растворах от 0,01 до 0,2 мг/л.1. A method for determining fluorine in p11i and its sodorne in anal; my virus solutions from 0.01 to 0.2 mg / l.

В мерные колбочки емкостью 100 мл внос т по 0,1,5, 10 и 20 мл стандартного раствора фтористого натри  с содержанием 0,001 лгг/льг Р и дистиллированной воды до объема €0 мл.Into 100 ml volumetric cones, 0.1.5, 10, and 20 ml of standard sodium fluoride solution with a content of 0.001 mg / lg of P and distilled water are added to a volume of € 0 ml.

В следующие -мерные колбочки отбирают такое количество анализируемого раствора, чтобы в нем содержалось от 0,002 до 0,018 мг F нейтрализуют, если это- несб.ходимо, кислотой или щелочью но бумажке конго-красный и объем довод т до 60 мл дистиллированной водой.In the following -dimensional cones, such an amount of the analyzed solution is taken that it contains from 0.002 to 0.018 mg of F neutralized, if unsuitable, with acid or alkali but congo-red paper and the volume is brought to 60 ml with distilled water.

Затем в колбочки со стандартным и анализируемым растворами добавл ют по 15 мл азотнокислого циркони , дл  чего предварительно готов т в НужноМ объеме смешениел 3 мл Zr (N03)4 (с содержанием 0,05 мг/мл Zr ) с 12 мл 1 нормальной HCI и но 10 мл 0,005%, раствора арсеназо. Содержимое колбочек довод т до метки дистиллированной водой И тщательно перемешивают. Оптическую плотность полученных растворов определ ют на прмборе ФЭК-Н. в кюветах толишной 50 м.м, примен   светофильтр № 6. Калибровочную кри.вую стро т, откладыва  по горизонтальной оси милиметры стандартного раствора, а но вертикальной оси - оптическую плотность. Содержание фтор-иона в анализируемых растворах наход т -по калибровочной «ривой и рассчитывают по формуле:Then, 15 ml of zirconium nitrate are added to the cones with the standard and analyzed solutions, for which purpose 3 ml of Zr (N03) 4 (containing 0.05 mg / ml Zr) with 12 ml of 1 normal HCI and but 10 ml of 0.005% solution of arsenazo. The contents of the cones are brought to the mark with distilled water. And they are thoroughly mixed. The optical density of the resulting solutions was determined on a FEC-H solution. in the cuvettes with a thickness of 50 m. m, apply the light filter No. 6. The calibration curve is constructed by laying millimeters of the standard solution along the horizontal axis, and the optical density on the vertical axis. The content of fluoride ion in the analyzed solutions is found on calibration gauge and is calculated by the formula:

MZ/A г о ,MZ / A oh,

где: А - количество мл стандартного раствора, отвечающее концентрации фтора во вз том дл  анализа объеме.where: A is the amount of ml of the standard solution, corresponding to the concentration of fluorine in the sample for volume analysis.

Л-0,001-1000 L-0.001-1000

SU651810A 1960-01-25 1960-01-25 Method for quantitative determination of fluorine SU132432A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU651810A SU132432A1 (en) 1960-01-25 1960-01-25 Method for quantitative determination of fluorine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU651810A SU132432A1 (en) 1960-01-25 1960-01-25 Method for quantitative determination of fluorine

Publications (1)

Publication Number Publication Date
SU132432A1 true SU132432A1 (en) 1960-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU651810A SU132432A1 (en) 1960-01-25 1960-01-25 Method for quantitative determination of fluorine

Country Status (1)

Country Link
SU (1) SU132432A1 (en)

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