5371. Lard

Nomenclature

Adeps; axungia porci.

Description and references

Purified internal fat from abdomen of the hog.

Properties

Soft, white unctuous mass; slight characteristic odor, bland taste. d 0.917. mp 36-42°. Insoluble in water. Very slightly sol in alcohol, freely in benzene, chloroform, ether, carbon disulfide, petr ether. Sapon. no. 195-203. Iodine no. 46-70. Keep cool and in tight containers.

Derivative

Benzoinated lard.

Description and references

Prepd by heating lard with 1% benzoin powder at temps not above 60°. Less likely to become rancid than pure lard.

Derivative

Lard oil.

Description and references

The oil expressed from lard at a low temp. Constit. Olein, stearin.

Properties

Colorless or pale yellow liq. d 0.905-0.915. Solidif 2° to +4°. nD20 1.470-1.472. Sapon no. 195-197. Iodine no. 56-74. Acid no. 1.5-2.5. Insol in water or cold alc. Freely sol in benzene.

Use

As vehicle for medicinal agents and in manufacture of ointments. Oil as lubricant, manuf soap, oiling wool, illuminant.