We now would like to introduce Sodium Lauryl Sulphate (SLS) to you. Following is one of SLS specification. If you need other specification SLS. Please tell us. Appearance; White Powder Form Active matter (%): 93 min Petroleum ether soluble substances (%): 1.5 max Inorganic salts (NaCl+Na2SO4) (%): 4.5 max Water (%): 2.5 max PH (1% aq. Solution 25C): 7.5~9.5 Whiteness (WG): 90 min Packing in 20kgs brown paper bags.