We are offering lab chemical. Item description labsa 96%appearance light yellow-brown viscous liquidactive matter(alkyl benzene acid)% 96 min 96.8free oil % 2.0 max 1.53sulphate % 1.5 min 1.2color(5% am a q.sol.) klett 40 max 37water content % 1.0 max 0.8ph value 2-3 2free sulphuric acid % 1.5 max 1.32conclusion: qualified.