SU424056A1 - METHOD OF DIFFERENTIAL THERMAL ANALYSIS - Google Patents
METHOD OF DIFFERENTIAL THERMAL ANALYSISInfo
- 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
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.
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) |
-
1972
- 1972-10-30 SU SU1841533A patent/SU424056A1/en active
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