3131a.     SCHULZ, G.  [Drilling Oil.]  Erdöl u. Kohle, vol. 4, 1951, pp. 288-290; chem. Zentralb., 1951, II, p. 3,537.

          Bohrmittel Hö is obtained through the action of SO₂ and Cl₂ on Mepasin (hydrogenated Kogasin), subsequent conversion of the sulfochlorinated mixture by NH₃ and chloroacetic acid.  The active ingredient of the final mixture is the Na salt of Mepasinsulfamedoacetic acid.  H₂O emulsions containing from 0.5-5% are effective coolants and lubricants for many types of metal working and will prevent corrosion.  It is an effective emulsifier for mineral oils.