SU114286A1 - Colorimetric method for determining antimony in copper and light alloys - Google Patents

Colorimetric method for determining antimony in copper and light alloys

Info

Publication number
SU114286A1
SU114286A1 SU580987A SU580987A SU114286A1 SU 114286 A1 SU114286 A1 SU 114286A1 SU 580987 A SU580987 A SU 580987A SU 580987 A SU580987 A SU 580987A SU 114286 A1 SU114286 A1 SU 114286A1
Authority
SU
USSR - Soviet Union
Prior art keywords
antimony
copper
colorimetric method
thiourea
light alloys
Prior art date
Application number
SU580987A
Other languages
Russian (ru)
Inventor
Р.С. Володарская
Р.С. Володарска
Original Assignee
Р.С. Володарская
Р.С. Володарска
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 Р.С. Володарская, Р.С. Володарска filed Critical Р.С. Володарская
Priority to SU580987A priority Critical patent/SU114286A1/en
Application granted granted Critical
Publication of SU114286A1 publication Critical patent/SU114286A1/en

Links

Landscapes

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

Description

Существующие способы определени  сурьмы с применением тиомочевины требуют перед колорпметрировапием отдел ть от сурьмы медь и некоторые другие прпмесн, что требует продолжнтсл1 иого времени. Кроме того, известные способы св заны с затратой дорогих йодистых или бромистых реактивов.Existing methods for determining antimony using thiourea require that copper and some other compounds be separated from antimony before colorimetrication, which requires a long time. In addition, known methods are associated with the expenditure of expensive iodine or methyl reagents.

Описываемы колориметрический способ определепн  сурьмы в медных и легких си.чавах с применением тиомочевины бо.тее прост и менее продолжителеп , чем суидествующие, и не требует применени  до 1огих реагентов .The described colorimetric method for the determination of antimony in copper and light tanks using thiourea is more simple and less protracted than current ones, and does not require the use of up to one reagent.

Достигаетс  это тем, что определени  содержани  сурьмы пронзвод т по соединению сурьма-тиомочевина , а не по соединению сурьма-йод -тиомочевина как обычно, что позвол ет вести анализ без отделени  обычно мешающих примесей. В описываемом способе анализ осуществл ют без применени  йода, брома или их препаратов, а содержание сурьмы определ ют но интенсивности окраски раствора, завис н еи от концентрации в нем окрашепного в желтый цвет соединени  сурьма-тиомочевина .This is achieved by determining that the content of antimony is carried out on the antimony-thiourea compound, and not on the antimony-iodine-thiourea compound as usual, which makes it possible to carry out the analysis without separating the usually interfering impurities. In the described method, the analysis is carried out without the use of iodine, bromine or their preparations, and the content of antimony is determined by the color intensity of the solution, depending on the concentration of the antimony-thiourea compound in it.

При выпо-лненин анализа но описываемому способу навеску 0,1 j медного сплава раствор ют в мерной колбе емкостью 100 ли в 10 лл копцентрирова1П10й серной кислоты, разбавленной 5 мл воды, растворен е легких сплавов ведут в 20 мл концентрированной серной кислоты, разба ;ленной в н ть раз. Обработку кислотой ведут при нагревании до полного растворени  еплава.In the course of analysis, but the described method, a sample of 0.1 j of copper alloy is dissolved in a 100-volt volumetric flask in 10 l of a copolymer of sulfuric acid, diluted with 5 ml of water, light alloys are dissolved in 20 ml of concentrated sulfuric acid. once again. The acid treatment is carried out with heating until the heat is completely dissolved.

Затем в ох.лажденный раствор добавл ют 20 мл воды, вновь охлаждают , добавл ют небольшими порци ми 60 мл дес типроцентного раствора тиомочевины, после чего добавл ют разбавленную (1:5) серную кислоту до метки 100 мл. Спуст  5 - 7 мин. производ т фотоколориметрировапие с фиолетовым или синим светофильтром, сравнива  окраску испытуемого раствора с эталонным.Then, 20 ml of water is added to the cooled solution, cooled again, 60 ml of a ten percent thiourea solution are added in small portions, and then diluted (1: 5) sulfuric acid is added to the 100 ml mark. After 5 - 7 minutes produce photocolorimetry with a violet or blue filter comparing the color of the test solution with the reference one.

Фотоколоримет)ирование можноPhotocolorimeter can be

производить также ио р .алибровочной кривой при работы со ссежеприготовленным раствором гиомочевииы и растворами серной кислоты строго определенной коицеитрации.produce also a calibration curve when working with sections with a prepared hyomourea solution and sulfuric acid solutions of strictly defined coititration.

При анализе сплавов, содержапщх свинец, раствор, образующийс  при растворении сплава, довод т до обьема в 100 мл не раствором cepHoii кислоты, а водой, не добавл   перед этим в него тиомочевины.When analyzing alloys containing lead, the solution formed during the dissolution of the alloy is brought to volume in 100 ml not with a solution of cepHoii acid, but with water, before adding thiourea to it.

Затем 50 мл получениого раствогза через плотный фильтр перевод т в другую мерную колбу (на 100 м.г), добавл ют 30 мл дес типроцентного раствора тиомочевины, довод т объем до 100 мл разбавленной (1 : 5)Then 50 ml of the obtained solution through a dense filter are transferred to another volumetric flask (per 100 mg), 30 ml of a ten-percent standard solution of thiourea are added, the volume is made up to 100 ml diluted (1: 5)

серной кислотой и лишь спзст  ь- 7 мин. после этого производ т коли риметрирование.sulfuric acid and only spzstb- 7 min. after that, calimerization is performed.

Предмет изобретени Subject invention

Колориметрический способ опреде лени  сурьмы в медных и легки: сплавах с применением тиомочевипы отличающийс  тем, что, целью уирощеии  и сокращени  про должительности анализа, его осуще ствл ют без применени  брома, йод; или их препаратов, а содержани сурьмы определ ют по интенсивно сти окраски раствора, завис щей о концентрации в нем соединени  сурь ма - тиомочевина.A colorimetric method for determining antimony in copper and light: alloys using thiourea, characterized in that, the aim of reducing and reducing the duration of the analysis, it is carried out without the use of bromine, iodine; or their preparations, and the antimony content is determined by the color intensity of the solution, depending on the concentration of the compound, thiourea, in it.

SU580987A 1957-07-23 1957-07-23 Colorimetric method for determining antimony in copper and light alloys SU114286A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU580987A SU114286A1 (en) 1957-07-23 1957-07-23 Colorimetric method for determining antimony in copper and light alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU580987A SU114286A1 (en) 1957-07-23 1957-07-23 Colorimetric method for determining antimony in copper and light alloys

Publications (1)

Publication Number Publication Date
SU114286A1 true SU114286A1 (en) 1957-11-30

Family

ID=48386674

Family Applications (1)

Application Number Title Priority Date Filing Date
SU580987A SU114286A1 (en) 1957-07-23 1957-07-23 Colorimetric method for determining antimony in copper and light alloys

Country Status (1)

Country Link
SU (1) SU114286A1 (en)

Similar Documents

Publication Publication Date Title
SU114286A1 (en) Colorimetric method for determining antimony in copper and light alloys
Yonehara The colorimetric determination of minute amounts of iodide and iodate in sea water by means of their catalytic effects
Hanzal Determination of iron in biological material
Bryant et al. Determination of Pectin in Biological Materials Modification of Pentose-Furfural Method
Joint Methods for the determination of phenols and sulphide
Sideris Adaptation of Indirect Method for Potassium to Photoelectric Colorimeter
Maren A simple and accurate method for the determination of mercury in biologic material
SU111893A1 (en) Method for quantitative determination of bromine in selenium
Fulton et al. Photometric determination of copper in aluminum and lead-tin solder with neocuproine
Wilkins The chelometric determination of cobalt and iron using a fluorescent end-point
Shaefer et al. Analysis of Diazo Compounds, Particularly Diazodinitrophenol
Banoub A method for the determination of particulate organic nitrogen in natural waters
SU149423A1 (en) Method for quantitative determination of phenol in salicylic aldehyde
SU143785A1 (en) Method for quantitative determination of scandium
SU131961A1 (en) Method for determining phenol content in air
SU133231A1 (en) Method for photocolorimetric determination of titanium using organic complexing agents
Minster The determination of silicon in nickel alloys
ávan Pinxteren The determination of organic bromine compounds in beverages by Koenig's reaction
SU1479853A1 (en) Method of determining saponin in water
SU1401374A1 (en) Method of determining antimony in copper and its alloys
SU68783A1 (en) Method for determining ascorbic acid in vitamin extracts and concentrates
SU989443A1 (en) Alkaline metal arsenate determination method
SU148582A1 (en) Method for quantitative determination of beryllium
SU1116391A1 (en) Method of photometric determination of vanadium
FUKAI Critical Studies on the Analytical Methods for Minor Chemical Constituents in Sea Water (Part 3) Remarks on the Method of Estimation of Nitrate-nitrogen by Means of Reduced Strychnine Reagent