SU648891A1 - Method of differential thermogravimetric analysis - Google Patents

Method of differential thermogravimetric analysis

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Publication number
SU648891A1
SU648891A1 SU772551118A SU2551118A SU648891A1 SU 648891 A1 SU648891 A1 SU 648891A1 SU 772551118 A SU772551118 A SU 772551118A SU 2551118 A SU2551118 A SU 2551118A SU 648891 A1 SU648891 A1 SU 648891A1
Authority
SU
USSR - Soviet Union
Prior art keywords
substance
change
mass
rate
analysis
Prior art date
Application number
SU772551118A
Other languages
Russian (ru)
Inventor
Георгий Ованесович Пилоян
Александра Георгиевна Котлова
Original Assignee
Институт Геологии Рудных Месторождений Петрографии,Минералогии И Геохимии Ан Ссср
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Application filed by Институт Геологии Рудных Месторождений Петрографии,Минералогии И Геохимии Ан Ссср filed Critical Институт Геологии Рудных Месторождений Петрографии,Минералогии И Геохимии Ан Ссср
Priority to SU772551118A priority Critical patent/SU648891A1/en
Application granted granted Critical
Publication of SU648891A1 publication Critical patent/SU648891A1/en

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  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Claims (3)

, -. .- ,, / ,. / ем пиков на кривой ДТГ по времени и температуре . Целью изобретени   вл етс  повышение точности анализа. Дл  этого измерение скорости изменени  массы вещества производ т при непрерывном изменении температуры и регистрируют скорость изменени  массы вещества в зависимости от изменени  массы вещества. Технически наиболее просто предлагаемый способ осуществл етс  только на тех известных термовесовых устройствах, которые соединены с управл ющими линии ЭВМ (например ТГС-1, Меттлер и некоторые другие), способными формировать сигнал иШ ... В зтом случае достаточно заменить обычный регистратор, использующийс  в этих устрюйствах, на двухкоординатный. На одну координату следует подавать сигнал от ЭВМ ( ), на вторую X чО от весового датчика (т). Сложнее осуществить предлагаемый способ ДТГ на тех термовесовых устройствах, которые выдают сигнал от весового датчика в аналоговой форме (например, дериватограф). Здесь необходимо ввести дополнительный этап эксперимента дискретизаци1в непрерьганого сигнала, которую можно осуществить либо с помощью аналогоцифрового преобразовател , либо визуально (вручную). Использование предлагаемого способа дифференциального термогравиметрического анализа 6 14 обеспечивает, по сравнению с существующими способами, следующие преимущества; возможность более точно и надежно прюводить идентификацию отдельных химических соединений и фазовый анализ механических смесей, возможность более точно и надежно определ ть число стадий химической реакции и кинетические параметры отдельных стадий. Формула изобретени  Способ дифференциального термогравиметрического анализа, заключающийс  в нагревании вещества, измерении скорости изменени  массы вещества и ее регистрации, отличающийс  тем, что, с целью повышени  точности анализа, измерение скорости изменени  массы вещества производ т при непрерьшном изменении температуры и регистрируют скорость изменени  массы вещества в зависимости от изменени  массы вещества. Источники информации, прин тые во внимание при экспертизе i.C.3.Keallch,D.DoBimope.An intoduction to thermogravimetpy.Hedden and Son.London, 1976,p.35-5i. , -. .- ,, /,. / eat peaks on the DTG curve in time and temperature. The aim of the invention is to improve the accuracy of the analysis. To this end, the measurement of the rate of change of the mass of a substance is carried out with a continuous change in temperature, and the rate of change of the mass of a substance is recorded depending on the change in the mass of a substance. Technically, the most simply proposed method is carried out only on those known thermo-weight devices that are connected to control lines of a computer (for example, TGS-1, Mettler, and some others) capable of generating an IC signal ... In this case, it is sufficient to replace the usual recorder used in these ustryuystvah, on two-coordinate. The signal from the computer () should be sent to one coordinate, to the second X chO from the weight sensor (t). It is more difficult to carry out the proposed DTG method on those thermo-weight devices that produce a signal from the weighing sensor in analog form (for example, a derivatograph). Here it is necessary to introduce an additional stage of discretization experiment1 into the uninterrupted signal, which can be carried out either with the help of an analog-digital converter or visually (manually). Using the proposed method of differential thermogravimetric analysis 6 14 provides, as compared with existing methods, the following advantages; the ability to more accurately and reliably identify the identification of individual chemical compounds and phase analysis of mechanical mixtures, the ability to more accurately and reliably determine the number of stages of a chemical reaction and the kinetic parameters of individual stages. DETAILED DESCRIPTION OF THE INVENTION The method of differential thermogravimetric analysis, which consists in heating a substance, measuring the rate of change in the mass of a substance and registering it, is characterized in that, in order to improve the accuracy of the analysis, the measurement of the rate of change in the mass of a substance is carried out with a continuous change in temperature depending on the change in mass of the substance. Sources of information taken into account in the examination of i.C.3.Keallch, D.DoBimope.An intoduction to thermogravimetpy.Hedden and Son.London, 1976, p.35-5i. 2.P.PaueiU,2.P.PaueiU, 3.PoiuBiK,b.EncJey.:i.Anae. Chem. i958.Bd. 160,p.241.3.PoiuBiK, b.EncJey.: I.Anae. Chem. i958.Bd. 160, p.
SU772551118A 1977-12-06 1977-12-06 Method of differential thermogravimetric analysis SU648891A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772551118A SU648891A1 (en) 1977-12-06 1977-12-06 Method of differential thermogravimetric analysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772551118A SU648891A1 (en) 1977-12-06 1977-12-06 Method of differential thermogravimetric analysis

Publications (1)

Publication Number Publication Date
SU648891A1 true SU648891A1 (en) 1979-02-25

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Application Number Title Priority Date Filing Date
SU772551118A SU648891A1 (en) 1977-12-06 1977-12-06 Method of differential thermogravimetric analysis

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SU (1) SU648891A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2532601C1 (en) * 2013-04-04 2014-11-10 Общество с ограниченной ответственностью "Софитекст" Method for determining fire-resistant efficiency of protective compounds and coatings for timber and materials on its basis, and unit for its implementation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2532601C1 (en) * 2013-04-04 2014-11-10 Общество с ограниченной ответственностью "Софитекст" Method for determining fire-resistant efficiency of protective compounds and coatings for timber and materials on its basis, and unit for its implementation

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