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Citation: Xu Jie, Du Bao-Shi, Wang Wen-Xiang. A New Method for Determination of Reaction Order by Derivative Thermogravimetry[J]. Acta Physico-Chimica Sinica, ;1991, 7(06): 730-734. doi: 10.3866/PKU.WHXB19910619 shu

A New Method for Determination of Reaction Order by Derivative Thermogravimetry

1.
Department of Chemistry, Zhengzhou University, Zhengzhou 450052

Received Date: 22 April 1990
Available Online: 15 December 1991

A new method for determination of reaction order n by DTG curve is presented in this paper. The reliability of the method is illustrated by the investigation of the decomposition process of CaC_2O_4·H_2O.
The result shows that the peak area of DTG Curve corresponds to the change of sample weight. The reaction order n may be determined by the following equation:
1-x_m=1/e (n=1); 1-x_m=n~(1/(1-n)) (n≠1)
Where x_m represents the fraction reacted at maximum rate of the reaction, x_m can be calculated by the ratio of sample changed at the top of DTG peak ...
- Determination of reaction order; DTG curve
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