The integration of an ultraviolet-visible spectrometer and a reaction calorimeter

被引：10

作者：

Ampelli, C ^{[1
]}

Di Bella, D ^{[1
]}

Lister, DG ^{[1
]}

Maschio, G ^{[1
]}

Parisi, J ^{[1
]}

机构：

[1] Univ Messina, Dipartimento Chim Ind & Ingn Mat, I-98166 Sant Agata Di Messina, Italy

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2003年 / 72卷 / 03期

关键词：

reaction calorimetry; reaction kinetics; ultraviolet-visible spectrophotometry;

D O I：

10.1023/A:1025074400414

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A small ultraviolet-visible absorption spectrometer which uses fibre optic coupled immersion probes has been incorporated into a laboratory scale reaction calorimeter. The combined instrument has been tried out using the hydrolysis of acetic anhydride as a test reaction. With the calorimeter operating in the isoperibolic mode good agreement is found for the pseudo-first order reaction rate constant as determined from spectroscopic and calorimetric measurements. Experiments have been made in order to follow the reaction indirectly using optical pH measurements with acid-base indicators. The possibility of determining the temperature dependence of the rate constant in a single experiment has also been investigated.

引用

页码：875 / 883

页数：9

共 13 条

[1] NONISOTHERMAL SPECTROPHOTOMETRIC KINETICS APPLIED TO INORGANIC REACTIONS [J].

ALIBRANDI, G .

INORGANICA CHIMICA ACTA, 1994, 221 (1-2) :31-34

[2]

Ampelli C., 2001, RIV COMBUST, V55, P292

[3]

ATKINS PW, 1998, PHYSICAL CHEM, V6, P235

[4] THE APPLICATION OF DIFFERENTIAL THERMAL ANALYSIS TO THE STUDY OF REACTION KINETICS [J].

BORCHARDT, HJ ;

DANIELS, F .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (01) :41-46

[5] TEMPERATURE OSCILLATION CALORIMETRY IN STIRRED-TANK REACTORS WITH VARIABLE HEAT-TRANSFER [J].

CARLOFF, R ;

PROSS, A ;

REICHERT, KH .

CHEMICAL ENGINEERING & TECHNOLOGY, 1994, 17 (06) :406-413

[6] On-line calibration and determination of the heat of reaction for laboratory scale heat transfer calorimeters [J].

De Domenico, G ;

Lister, DG ;

Maschio, G ;

Stassi, A .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2001, 66 (03) :815-826

[7] THE HYDROLYSIS OF ACETIC ANHYDRIDE [J].

GOLD, V .

TRANSACTIONS OF THE FARADAY SOCIETY, 1948, 44 (07) :506-518

[8]

HARGIS LG, 1993, PHYSICAL METHODS CHE, V8, P1

[9]

SAVITSKY A, 1964, ANAL CHEM, V38, P1627

[10]

*SPSS INC, 1997, SIGM PLOT 4 WIND

← 1 2 →