Thermogram differential

Figure 7. Differential thermogram of sodium 2-(2,4-dichlorophenoxy)-5-chloro-...

In addition to porosity, modulus of elasticity and microhardness were determined. Differential thermograms were recorded, at a heating rate of 20 ° min-. ... 

Nickel silicate, as catalyst, 20 106-109 differential thermogram of xerogel, 20 107 infrared spectra of, 20 108 preparation by SHCP method, 20 106 properties and structure of, 20 107-109 X-ray diffraction pattern of, 20 109 Nickel sulfate hexahydrate, dehydration of, dislocations and, 19 389 Nickel sulfides... 

Fig. 7.18 Left Differential thermograms (DTA curves) of different Fe " oxides. (Carlson Schwertmann, 1981 and unpubl. with permission). Middle DTA curves of goethites with increasing AI-for-Fe substitution AI/(Fe -i- Al) (Schulze Schwertmann, 1984 with permis-...

Figure I. Differential thermograms of potassium acid-soaps (Hormel and Baker fatty acids) prepared from ethanol and petroleum ether...

The results of the transformation of various CsCl + KCl solid solutions are summarized in table 1 and typical differential thermograms are shown in fig. 1. The lattice dimensions (at 25°C) of the Pm3m and Fm3m forms of the solid solutions are also given in table 1. The a0 values of both the forms decrease with increase in... 

The results from DTA and X-ray analysis are shown in table 2. Typical differential thermograms are given in fig. 2. The transformation temperature increases markedly with % CsBr, the trend continuing up to the melting point of the solid solution ( 65 % CsBr). The transformation temperatures reported here essentially agree with those of earlier workers.4- 5 The AH of the transformation varies little in these solid solutions. The r]Fm3mlr)Fm < ratio in the solution with 10 % CsBr is 0.5, a value much less than in pure CsCl. 

Figure 1. Integral and differential thermograms of wood components (1)...

Figure 3 A. Differential thermograms of cotton, sulfite, and kraft pulps. Rate of heating 40°C/min.

Figure 5A. Differential thermograms of three artificially aged pulps. Rate of...

Figure 6B. The effect of heating rate on the differential thermogram of a hardwood kraft pulp. All curves are for pulp BBC. Rate of heating from left to right 5°, 10°, 20°, 40°, and 80°C/min.

Much useful and interesting information can be obtained from a study of the features and profiles of integral and differential thermograms. Papermaking pulps have more or less unique thermograms show-... 

Figure 6. Differential thermogram of a furnace injected mode sludge sample...

Figure 10 shows the differential thermograms. A mild endothermic peak at 100-200°, which was observed for the samples of any composition, is presumed to be the result of evaporation of adsorbed water or the removal of hydration water. The peak of the binary mixture shifted... 

The constitnents of binary phenol mixtnres can be identihed by differential thermal analysis of a sample to which any of the aroyl chlorides 184-186 has been added. The thermogram is compared with a bank of differential thermograms of phenols, binary phenol mixtures and binary phenol derivatives. Most snch systems show weU-resolved endotherms corresponding to the melting points of the phenols and their acylated derivatives. The method is proposed for rapid identification of phenols in the solid state . 

Differential Thermal Analysis. Acetone-recrystallized tristearin has a very complex differential thermogram. Figure 2 shows a trace which is representative of three separate determinations. This curve resembles those published by Chapman (6) in gross features. Three endotherms and one exotherm are evident. The temperatures of transition are given in Table I. 

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