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Fat is a fluid similar to vegetable oils, inodorous, and lighter than water; besides the elements common to water, to oils, and wax, it contains carbon, hydrogen, and sebacic acid, which is pretty similar to the acetic.

Sē′bāte, a salt formed by the combination of sebacic acid with a base.—adj.

XLII.—Observations upon the Sebacic Acid, and its Combinations with the Salifiable Bases, 286 SECT.

By this process the sebacic acid unites with the lime into a sebat of lime, which is difficultly soluble in water; it is, however, separated from the fatty matters with which it is mixed by solution in a large quantity of boiling water.

To obtain the sebacic acid, let some suet be melted in a skillet over the fire, alongst with some quick-lime in fine powder, and constantly stirred, raising the fire towards the end of the operation, and taking care to avoid the vapours, which are very offensive.