SU406161A1 - METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE - Google Patents

METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE

Info

Publication number
SU406161A1
SU406161A1 SU1690708A SU1690708A SU406161A1 SU 406161 A1 SU406161 A1 SU 406161A1 SU 1690708 A SU1690708 A SU 1690708A SU 1690708 A SU1690708 A SU 1690708A SU 406161 A1 SU406161 A1 SU 406161A1
Authority
SU
USSR - Soviet Union
Prior art keywords
calcium
determining
oxide hydrate
calcium oxide
solution
Prior art date
Application number
SU1690708A
Other languages
Russian (ru)
Inventor
Ф. П. Горбенко витель А. И. Посторонко
Original Assignee
Государственный союзный ордена Трудового Красного Знамени слав нский содовый комбинат
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 Государственный союзный ордена Трудового Красного Знамени слав нский содовый комбинат filed Critical Государственный союзный ордена Трудового Красного Знамени слав нский содовый комбинат
Priority to SU1690708A priority Critical patent/SU406161A1/en
Application granted granted Critical
Publication of SU406161A1 publication Critical patent/SU406161A1/en

Links

Landscapes

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

Description

Изобретение относитс  к аналитической химии, а .именно к спо.соба.м ком тлексонаметр чеокого опред-еленил кашьц-и  в пидрате омиои (Кальци . Известен способ апредачени  кальци  в гидрате 01киаи кальци  юомплексонол етричеС1КИ1М титроваи ем с мета лаинщикаторо м, наПри .мер глиомсаль-1б1Ис-(2-1ОКаиаиилам, в присутствии ал:ифат1И чесмих спиртов, «априахер этаиола. Недостатком 1из1вестног10 сцссоб.а  вл етс  11,из1ка1  T04iHOCTb определбни  йз-за Слабой интенсивности 1акраск и К|01МПлак са асальцм  с гл1ИО1ксаль-бис- (2-о:Ксиа Нилам), котора  приводит iK нечетному цввтово:му иереходу в .точке эк:в1ив1алантно1сти. Предлагаемый юпособ отличаетс  от 1известного тем, что титрование пробы провод т (В пр1Исутств(И,и 0,05-0,25% глицерина. Это повышает точн;ость анализа. Уата1новлено, что добавление глицерина в пробу за 1-3 мин развивает интенсивную oiKpaciKy patTBopia и дает  рк1ие 1и четкие переходы в точке эквивалентности. При-мер. Навеоку IB 1 г, взвешенную с точностью до 0,0002 г, перенос т IB стакан емкостью 400 мл, омачивают водой и раствор ют в сол ной кислофе (уд. вес 1,19) в нрисутствии (метилового краонопо, не допуска  при paaTBOpeHiHiH -бюльшого избытка «ислОты. Раствор окисл ют двум -трем  капл ми азотной кислоты (уд. Biec. 1,4) и кип т т в течение 5 мин. После охлаждени  содержимое стакана перенос т в мерную колбу иа 250 мл, доливают водой до метки и тщательно перемешивают . ДлЯ титрощаии  отбирают 10 мл раствара в коническую жолбу на 250 мл, разбавл ют водой до объема 50 мл л нейтрализуют 1 N раствором едкого натра по метиловому кр аюному. К раствору л-риливают 3 мл 1 N ipacTBOpa едкого натра, 0,2 мл раствора глицерина в воде (1:1) и 0,1 мл индикатора, и лерез 2 мин титруют 0,1 N раствором трилоиа Б при рН-12 до перехода от розовой до л.имон ю-желтой. Затем производ т расчеты по известным фор-мулам. Предмет и з о б р е т е и и   Способ определени  кальци  в пидрате окиси 1кальц1и  К01мпл«ксономет1рическим титрованием с металлоинйикатором, например с глиоксаль-бис-(2-окс1ианилом), в присутствии ониртов, отличающийс  тем, что, с целью повышени  точности определени , анализ в (присутствии 0,05-0,25% глицериеа.The invention relates to analytical chemistry and .imenno to spo.soba.m com tleksonametr Cheoc objectified ELENITE kashts-and pidrate omioi (calcite. Known method apredacheni calcium hydrate 01kiai yuompleksonol etricheS1KI1M calcium titrate it with meta lainschikatoro m eg .mer gliomsal-1b1Is- (2-1OKaaiaiil, in the presence of al: ifatcid alcohols, "a priori etaiola. The disadvantage of 1 known 10 stsoba is 11, out of 1 T04 iHOCTb is determined by the low intensity 1 acre and K | 01 MPacquac, 11 (2-o: Xia Nilam), which leads iK not This method is different from the one known in that the titration of the sample is carried out (In the present (AND, and 0.05-0.25% glycerol. This increases the accuracy; that the addition of glycerol to the sample in 1-3 minutes develops an intensive oiKpaciKy patTBopia and gives rk1i1 and clear transitions at the equivalence point.Example.For 1g, weighed out with a precision of up to 0.0002g, transported IB glass with a capacity of 400 ml, The mixture is soaked with water and dissolved in hydrochloric acid (beats. weight 1.19) in the presence of (methylcranes, not tolerated when paaTBOpeHiHiH is a slight excess of acid. The solution is oxidized with two to three drops of nitric acid (sp. Biec. 1.4) and boiled for 5 minutes. After cool the contents of the glass into a 250 ml volumetric flask, add water to the mark and mix thoroughly. For titration, take 10 ml of the solution into a 250 ml conical scoop, dilute with water to a volume of 50 ml and neutralize with 1 N sodium hydroxide solution 3 ml of 1 N ipacTBOpa of caustic soda, 0.2 ml of glycerin solution are added to the solution. e (1: 1) and 0.1 ml of the indicator, and lerez for 2 min is titrated with a 0.1 N solution of triloy B at pH-12 until the transition from pink to L. Simon-yellow. Then, calculations are made using the known formulas Subject and use of a method for the determination of calcium in calcium chloride 1Cl of K01pl к sonometric titration with a metalloinjikator, for example, glyoxal-bis- (2-oxyl-ianil), in the presence of onyrth, characterized in that, in order to increase accuracy of determination, analysis in (in the presence of 0.05-0.25% glyceria).

SU1690708A 1971-08-16 1971-08-16 METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE SU406161A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1690708A SU406161A1 (en) 1971-08-16 1971-08-16 METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1690708A SU406161A1 (en) 1971-08-16 1971-08-16 METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE

Publications (1)

Publication Number Publication Date
SU406161A1 true SU406161A1 (en) 1973-11-05

Family

ID=20485891

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1690708A SU406161A1 (en) 1971-08-16 1971-08-16 METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE

Country Status (1)

Country Link
SU (1) SU406161A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100381816C (en) * 2004-11-25 2008-04-16 长安大学 Method for determining lime dosage in long-life limy stabilized soil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100381816C (en) * 2004-11-25 2008-04-16 长安大学 Method for determining lime dosage in long-life limy stabilized soil

Similar Documents

Publication Publication Date Title
BROWN et al. The determination of protein-bound iodine by dry ashing
US2186902A (en) Urine acetone test
SU406161A1 (en) METHOD FOR DETERMINING CALCIUM IN CALCIUM OXIDE HYDRATE
Manns et al. Volumetric determination of barium
Lehmann A photoelectric micro method for the direct titration of calcium in serum with ethylenediamine tetracetate
Kelly et al. Method of estimating minute quantities of iodine in biological material
Smirk The Micro-estimation of Chlorine in whole Blood, Serum or Corpuscles
Bullock et al. Volumetric Microdetermination of Chloride and Potassium Ions: Application of the Potassium Method to Sea Water
SU777571A1 (en) Method of quantitative determining of terminal groups of polyamides
Jack et al. The heat capacities and entropies of two monosaccharides
Palin Determining chlorine dioxide and chlorite
SU581428A1 (en) Method of mercury-metric determining of chlorides
Gilbert et al. Titrimetric analysis of calcium and magnesium in muscle.
SU77423A1 (en) Method for simplified determination of chloride content in water and in solutions
Bloom et al. Titration of Silver with Potassium Iodide: Ceric Ammonium Sulfate and Starch as Indicators
SHIOKAWA Catalytic Analysis. VIII: Microdetermination of Osmium by a Reaction between Potassium Chlorate and Potassium Iodide
SU107911A1 (en) Method for photocolorimetric determination of iron in titanium
SU73942A1 (en) Method for quantitative determination of hexametaphosphate
Sueda et al. A Rapid Determination of Potassium with Hexanitro-diphenylamine (Dipicrylamine) Reagent
Murakami Modified colorimetric determination of copper with sodium diethyldithiocarbamate in the presence of hydroxylamine
SU123949A1 (en) Method for determination of iron impurities in manganese ore samples
SU440601A1 (en) Method for quantitative determination of the composition of binary liquids of systems with unlimited mutual solubility of components
Barnett Detection and volumetric estimation of alkali metals
SU420926A1 (en) METHOD FOR DETERMINING CARBON DIOXIDE IN LIQUID AMMONIA
Marsh The quantitative estimation of iodine in urine