saturated with alumina; this requires about forty-eight hours to accomplish. The solu tion is then run off in leaden coolers where the alum concretes into cakes. bierge London has pa tented a peculiar pro cess for manufacturing chlorine and accessory products. In the common way of manufac employed but this is dispensed with in the new process. Mr. Thibierge passes hydro chloric or muriatic acid gas over iron at a high temperature and thus obtains proto chloride of iron and hydrogen gas. He then 1856 SCIENTIFIC AMERICAN INC., 56-06-28
saturated with alumina; this requires about forty-eight hours to accomplish. The solu tion is then run off in leaden coolers where the alum concretes into cakes. bierge London has pa tented a peculiar pro cess for manufacturing chlorine and accessory products. In the common way of manufac employed but this is dispensed with in the new process. Mr. Thibierge passes hydro chloric or muriatic acid gas over iron at a high temperature and thus obtains proto chloride of iron and hydrogen gas. He then 1856 SCIENTIFIC AMERICAN INC., 56-06-28
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