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Scientific American, Vol. 46, No. 21 (May 1882) (1882)

leaf 5

An illustration from Scientific American, Vol. 46, No. 21 (May 1882), 1882, leaf 5
Figs. 4 and S.-BOSES LIFE BUOYS. FIG 6 PsBPAKATiON OF AiTjMiNTiM.—Alu-minum sulphide is obtained from pow-dered cryolite; and it is then decom-posed by heating to redness with ironturnings. The cryolite is first dissolvedin water, which dissolves out the sodiumfluoride. The residue, aluminum…

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