Table 2.

TGA data of transition metal-Mg tartarate complexes (C1 to C6) under static air

Complex	Sample	% mass loss	% mass loss	Temp. Range °C
		Obsd.	Calcd.
MnMg(C4H4O6)2.4H2O	C1	16.55	16.10	5.-150
		38.50		150-300
		83.31		300-450
FeMg(C4H4O6)2.10H2O	C2	31.45	32.37	50-180
		74.00		180-330
		85.95		330-425
CoMg(C4H4O6)2.8H2O	C3	27.20	27.53	50-130
		36.30		130-300
		77.24		300-425
NiMg(C4H4O6)2.10H2O	C4	32.12	32.21	50-170
		53.37		170-330
		85.51		330-410
CuMg(C4H4O6)2.6H2O	C5	22.30	21.97	50-170
		67.38		170-280
		81.42		280-450
ZnMg(C4H4O6)2.8H2O	C6	26.82	27.20	50-120
		45.78		120-300
		87.10		300-450