Orotan

Description

1) A brand name for a synthetic tanning agent. Orotan is a dark red, viscous solution composed of a sulfonated phenol formaldehyde (31%). It simulates the tanning properties of vegetable tannins. Orotan produces a strong, full, solid leather that is often used for shoes. This syntan is also used as a bleaching and penetrating agent in combination with other tannins.

2) [Rohm & Haas] A brand name for a dispersant composed of the sodium salt of a carboxylated polyelectrolyte.

Authority

• G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 798

• Thomas Gregory, Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942