. Mining and Scientific Press . -s>ort Fro. 7. Fig. 8 In the case of the hardwood-creosote the .ill gm. ofgalena used has adsorbed nearly 80% of the live drops ofoil added. This indicates that the hardwood-oil is morereadily adsorbed by the galena than is the pine-oil. It Surfaee-Teiision of Oil-Water Kmulsioiis Before and After Agitation with .>() Gm. (-10 + 20-Mesh) Galena Particles Surface-tension at 17°C. Oil adsorbed per Oil per 100 Percentage Distilled Oil . dynes per cm. unit(sq. cm.)of cc. of resid- of total oil water weight before after mineral surface ual solution adsorbed cc.

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. Mining and Scientific Press . -s>ort Fro. 7. Fig. 8 In the case of the hardwood-creosote the .ill gm. ofgalena used has adsorbed nearly 80% of the live drops ofoil added. This indicates that the hardwood-oil is morereadily adsorbed by the galena than is the pine-oil. It Surfaee-Teiision of Oil-Water Kmulsioiis Before and After Agitation with .>() Gm. (-10 + 20-Mesh) Galena Particles Surface-tension at 17°C. Oil adsorbed per Oil per 100 Percentage Distilled Oil . dynes per cm. unit(sq. cm.)of cc. of resid- of total oil water weight before after mineral surface ual solution adsorbed cc. drops mg. treatment treatment mg. mg. _ % 100 0 < Hardwood-Creosote 100 1 0 2 100 3 100 4 100 5 Pine-Oil 10 1 1 2 :.T M 100 3 :: 100 4 1 1 2 1 5 58.

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