Great Britain produces large quantities of tallow which comes into the market as town and country tallow, or home melt. Owing to the increasing demand for edible fat, much of the rough fat is carefully selected, rendered separately, and the product sold for margarine-making. Consequently the melted tallow for soap-making is of secondary importance to the tallow melter. The following are typical samples of tallow:-- _______________________________________________________________________ | | | | | | | | Acidity | | | | Saponification | (as Oleic | Titre, | | | Equivalent. | Acid) | deg.C. | | | | Per Cent. | | |_________________________________|________________|___________|________| | | | | | | Australian mutton | 285 | 0.85 | 45 | | Australian mutton | 284.4 | 0.48 | 48.3 | | Australian beef | 284.2 | 1.68 | 43.9 | | Australian beef | 283.6 | 0.85 | 42.6 | | Australian mixed | 285.1 | 3.52 | 44 | | Australian mixed | 284.6 | 1.89 | 43.5 | | South American mutton | 284.5 | 1.11 | 47 | | South American mutton | 285 | 0.90 | 47.4 | | South American beef | 284.7 | 0.81 | 45 | | South American beef | 284 | 0.94 | 44 | | North American mutton | 284.3 | 1.32 | 44 | | North American mutton | 85 | 2.18 | 43.2 | | North American beef, fine | 284.5 | 1.97 | 41.5 | | North American beef, good | 283.8 | 4.30 | 42 | | North American ordinary | 285.2 | 5.07 | 41.75 | | North American prime city | 286 | 1.01 | 41.2 | | Selected English mutton | 283.9 | 1.45 | 47 | | Selected English beef | 284.2 | 2.40 | 44 | | Home-rendered or country tallow | 284.6 | 5.1 | 43 | | Town tallow | 285.3 | 7.4 | 42.5 | |_________________________________|________________|___________|________| Tallow should absorb from 39 to 44 per cent. iodine. _Lard._--Lard is largely imported into this country from the United States of America. The following is a typical sample of American hog's fat offered for soap-making:--