Ichthyolum.   Ammonium Ichthyol Sulphonate. C28 H36 S3 O6 (NH4)2. The most important of the salts of ichthyosulphonic acid, prepared from a bituminous mineral of Tyrol, which is rich in

ICHTHYOLUM A Combination of Sulphonated Hydrocarbons, a Fossil Product of Complex Structure found in Tyrol, supposed to be Fish Deposits, contains 10 % Sulphur. Its action on skin, mucous membranes,