Journal of Chemical Society of Nigeria - Nigeria Pure and applied chemistry, chemistry society of Nigeria - 36(1)2011,37(1)2014;40(1),2015;1 (1) 2010; 2011 - 36(1)2011,37(1)2014;40(1),2015;1 (1) 2010; ISSN: 0795-2066 LC Class. No.: TP1 / .J68