SU424056A1 - METHOD OF DIFFERENTIAL THERMAL ANALYSIS - Google Patents

METHOD OF DIFFERENTIAL THERMAL ANALYSIS

Info

Publication number
SU424056A1
SU424056A1 SU1841533A SU1841533A SU424056A1 SU 424056 A1 SU424056 A1 SU 424056A1 SU 1841533 A SU1841533 A SU 1841533A SU 1841533 A SU1841533 A SU 1841533A SU 424056 A1 SU424056 A1 SU 424056A1
Authority
SU
USSR - Soviet Union
Prior art keywords
differential thermal
thermal analysis
temperature
sample
substance
Prior art date
Application number
SU1841533A
Other languages
Russian (ru)
Original Assignee
Г. А. Сорокин, В. Ф. Багр нцев , Б. П. Перепеченко
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 Г. А. Сорокин, В. Ф. Багр нцев , Б. П. Перепеченко filed Critical Г. А. Сорокин, В. Ф. Багр нцев , Б. П. Перепеченко
Priority to SU1841533A priority Critical patent/SU424056A1/en
Application granted granted Critical
Publication of SU424056A1 publication Critical patent/SU424056A1/en

Links

Landscapes

  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Description

1one

Изобретение относитс  к темшке термического анализа и может найти применение в тех област х физико-химических исследований , где требуетс  быстрое и точное определение темт1ератур фазовых или физических переходов веществ, температур их взаимного растворени  или расслоени .The invention relates to thermal analysis and can be used in areas of physicochemical studies where rapid and accurate determination of the temperature of physical or phase transitions of substances, their mutual dissolution or separation temperatures is required.

Известны снособы дифференциального термического анализа, основанные на измерении температуры исследуемого вещества и разности температур .между .веществом и эталоном с помощью термопар в процессе охлаждени , нагревани  или термостатировани  исследуемого образца и эталола.Differential thermal analysis puzzles are known, based on measuring the temperature of the test substance and the temperature difference between the substance and the reference using thermocouples in the course of cooling, heating or thermostating of the sample and reference.

Однако такими способами невозможно определ ть температуры расслоени  жидкостей или растворени  одной жидкост1И IB другой.However, such methods cannot determine the temperature of the splitting of liquids or the dissolution of one liquid IB with another.

Кроме того, до последнего времени не установлено , какое изменение хода кривых на термограммах соответствует по влению или исчезновению первых (последних) кристаллов вещества, претерпевающего фазовый переход .In addition, until recently it has not been established what change in the course of the curves in the thermograms corresponds to the appearance or disappearance of the first (last) crystals of a substance undergoing a phase transition.

Дл  определени  температур взаимного растворени  или расслоени  веществ и повышени  точности анализа предлагаетс  способ, по которому на термоГрамме одновременно с записью температуры ,в веществе и разницы температур между веществом и эталоном записывают кривую изменени  оптической прозрачности образца.To determine the temperature of mutual dissolution or separation of substances and increase the accuracy of the analysis, a method is proposed that simultaneously with the recording of the temperature, in the substance and the temperature difference between the substance and the standard, the curve of the optical transparency of the sample is recorded.

Регистраци  изменени  светового потока, проход щего через образец, осуществл етс  аппаратурой дифференциального термического анализа.The recording of the change in luminous flux passing through the sample is carried out by differential thermal analysis equipment.

Дифференциальный термический анализ в сочетании с анализом светопропускани  образца дает практические полный ответ о состо нии веществ или их смесей в щироком интервале температур, от - 190° до 500° и выще.Differential thermal analysis in combination with the sample light transmittance analysis gives a practical complete answer about the state of substances or their mixtures in a wide temperature range, from - 190 ° to 500 ° and more.

1515

Предмет изобретени Subject invention

Способ дифферепциального термического апализа, осповаппый на измерении темнературы исследуемого вещества и разности температур между веществом и эталоном с помощью термопар IB процессе охлаждени , нагревани  или термостатироъани  исследуемого образца и эталона, отличающийс  тем,The method of differential thermal apalysis, located on the measurement of the temperature of the test substance and the temperature difference between the substance and the reference using thermocouples IB, is used for cooling, heating or thermostating the sample and the test sample,

что, с целью определени  температур взаимного растворени  или расслоени  веществ и повыщени  точности анализа, на полученной термограмме одновременно записывают кривую изменени  оптической прозрачности образца .that, in order to determine the temperatures of mutual dissolution or stratification of substances and increase the accuracy of the analysis, the obtained thermogram simultaneously records the curve of change in the optical transparency of the sample.

SU1841533A 1972-10-30 1972-10-30 METHOD OF DIFFERENTIAL THERMAL ANALYSIS SU424056A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1841533A SU424056A1 (en) 1972-10-30 1972-10-30 METHOD OF DIFFERENTIAL THERMAL ANALYSIS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1841533A SU424056A1 (en) 1972-10-30 1972-10-30 METHOD OF DIFFERENTIAL THERMAL ANALYSIS

Publications (1)

Publication Number Publication Date
SU424056A1 true SU424056A1 (en) 1974-04-15

Family

ID=20530759

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1841533A SU424056A1 (en) 1972-10-30 1972-10-30 METHOD OF DIFFERENTIAL THERMAL ANALYSIS

Country Status (1)

Country Link
SU (1) SU424056A1 (en)

Similar Documents

Publication Publication Date Title
Byrne et al. Second virial coefficients of argon, krypton and methane and their binary mixtures at low temperatures
US3161039A (en) Apparatus for determining pour point
SU424056A1 (en) METHOD OF DIFFERENTIAL THERMAL ANALYSIS
GB2202941A (en) Melting/freezing point apparatus
US3789654A (en) Method for determining thermo-physical properties of specimens
SU590665A1 (en) Method of investigating
Justus et al. Fluorescence thermometry of shocked water
SU972359A1 (en) Thermal conductivity determination method
CH504658A (en) Sample holder for optical measurements at low temperature
SU741126A1 (en) Method and device for rapid measuring of thermophysical properties of materials
US2668470A (en) Method and apparatus for electroptical analysis of the crystalline content of liquids
SU1573403A1 (en) Method of measuring thermal diffusivity
SU537288A1 (en) Method for determining thermal conductivity of solids
SU371491A1 (en) METHOD FOR REGISTRATION OF PHASE TRANSFORMATIONS AND CHEMICAL REACTIONS
SU615402A1 (en) Method of determining thermal conductivity coefficient
SU859893A1 (en) Method of determination of material thermal physical characteristics
SU972357A1 (en) Device for determination of wire specimen linear expansion factor
SU451002A1 (en) Method of measuring thermal conductivity of solids
SU1659815A1 (en) Method of determining thermal conductivity of a material
SU457136A1 (en) Method for measuring the quality factor of thermoelectric material
SU1262351A1 (en) Method of determining thermal and physical characteristics of materials
Martin et al. Infrared Absorption Method for Measuring Phase Transitions of Waxes
SU1111084A1 (en) Method of determination of material thermal conductivity
SU672552A1 (en) Substance thermophysical property measuring device
SU498540A1 (en) Method of measuring heat capacity of substances