The
three samples were mixed at different molar ratios of (1:3:0),
(1:3:0.1), (1:3:0.5), (1:3:1) and (1:3:2) (PVC:CaO/Ca(OH)2:Ni(OH)2
for (Cl:Ca:Ni).3moles of calcium offered by CaO is to fix 2moles
carbon (C) and 1mole HCl in PVC as calcium carbonate (CaCO3) and
calcium hydroxide chloride (CaOHCl) respectively during heating
according to our previous knowledge about the possible products
from dechlorination.