L.S.CHEMICALS & PHARMACEUTICALS Mfrs. Of Indl. & Lab Chemicals. L Mercuric Chloride L Mercuric Sulphate L Mercuric Oxide L Mercuric Iodide L Sodium Potassium Tartarate L Di Sodium Tartarate L Lead Acetate L Lead Peroxide L Lead Tetra Acetate L Potassium Iodide L Other Laboratory Ch