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

Table 1

Compositions of blends.

Sample no.	Composition, wt %
	PVC	Ca(NO3)2·4H2O	Ca(OH)2^a	NaNO3	NaNO2
1	7.45	42.97	—	49.58	—
2	19.90	20.12	59.98	—	—
3	15.85	17.95	66.20	—
4	17.44	58.61	23.95	—	—
5	13.75	—	48.85	—	37.40

^a86.2% Ca(OH)₂ + 13.8% CaCO₃.