Studies of Recycling of Poly(vinyl chloride) in Molten Na, Ca ‖ NO₃, OH Systems

Table 2

Weight change of the starting substances and the solid reaction products during the heating of Ca(NO₃)₂–NaNO₃(eut.) + PVC blend and the heats of reactions (2)–(4).

Reaction	Weight change of the starting substances and the solid reaction products Δ𝑚, mg					∑Δ𝑚, mg	–Δ𝐻,𝐽
	PVC	●C2H2	Ca(NO3)2	CaCO3	CaCl2
(2)	−7,47	+ 3,11				−4,36	12,3
(3)		−3,11	−39,23	+ 23,92		−18,42	111,2
(4)				−2,09	+ 2,33	+ 0,24	0,8
					Total	−22,54