Prepare as follows: One pound of soap made of cocoanut oil is cut into small pieces and heated with sufficient water to get a thick jelly-like mass. Mix one pound of red oxide of iron with some water, add 1/2 ounce carbonate of ammonia, and, when the soap jelly has become cold, combine both mixtures thoroughly.

This mass can be kept in stoneware jars, closed with a bladder, ready for use, and is also a valuable means for cleansing metals.