Thermal decomposition of acetylsalicylic acid (aspirin)

Artigo

Date

1996-06-01

Registration in:

Thermochimica Acta, v. 279, n. 1-2, p. 177-181, 1996.

0040-6031

http://hdl.handle.net/11449/64789

10.1016/0040-6031(96)90082-9

WOS:A1996UV25200017

2-s2.0-0000621783

8460531302083773

http://repositorioslatinoamericanos.uchile.cl/handle/2250/3914783

Author

Universidade Estadual Paulista (Unesp)

Institutions

Universidade Paulista Júlio de Mesquita Filho (Brasil)

Abstract

The thermal decomposition of aspirin in air and dry air flux was investigated. Thermogravimetry-derivative thermogravimetry (TG-DTG), differential scanning calorimetry (DSC), nuclear magnetic resonance (NMR), infrared absorption spectra and thin layer chromatography have been used to study the thermal decomposition of this compound. The results permit the identification of some compounds revealed in the first step of the TG-DTA curves, and also suggest the thermal decomposition mechanism.

Subjects

Acetylsalicylic acid

Differential scanning calorimetry

Infrared absorption spectra

Nuclear magnetic resonance

Thermal decomposition

Thermogravimetry

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