Ind. Eng. Chem. Res. 2002, 41, 1885-1891
1885
A Modified Thermogravimetric Analysis Apparatus of Improved Performance Dan Fraenkel,* Peter C. Andersen,† Gerald Cooper,‡ and Hans H. Funke Advanced Technology Center, Matheson Tri-Gas, 1861 Lefthand Circle, Longmont, Colorado 80501
A standard thermogravimetric analysis instrument was modified by simple changes of the gas flow lines and by provisions for continuous ultradrying, to afford higher working sensitivity and eliminate undesired mass gains due to the presence of residual impurities, especially moisture, in the sample chamber. The modified instrument is, in particular, useful in gravimetric gas sorption studies of hygroscopic materials and in thermochemical decomposition of ultrasmall (
