th MUCET 2014, Date: 1011 November 2014, Melaka, Malaysia ...
Chemicals. Waste gypsum is obtained from Tioxide (M) Sdn. Bhd., Terengganu, Malaysia (manufacturer of titanium dioxide). B. Calcium Oxide Regeneration Laboratory grade gypsum (LG), NaOH and deionised water (DW) were mixed in a beaker in the ratio of g to 1 g to ≤ 250 mL respectively. The mixture was stirred using