アセチレンガスに対する液体清淨剤に関する研究(第 2 報) : NiCl_2,ZnCl_2,NaCl および CaCl_2 について

概要

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As stated in a previous report, when we used liquid purifiers consisting of ferric chloride or cupric chloride, chemical reaction to fix the phosphine was done by self catalizing action of mercuric chloride. Regeneration is made completely by dissolving the precipitate. Like these metals, tin has two valency, but if stannic chloride is used, purifying power is distinctly inferior to ferric chloride owing to insoluble H_2SnO_3 is formed. In this report, we determined the powers of nickel and zinc chloride which have one valency. According to our experiments, it is cleared that both chlorides have same purifying action. Oxidation and reduction of chloride can not be reported, but these powers are superior to mercuric chloride solution. When passing crude acetylene through the nickel or zinc chloride, we suggest the following chemical reaction may be proceeded. MCl_2+PH_3⟶M_3P_2+HCl Regeneration of power is regarded as following reaction. M_3P_2+HCl⟶H_3PO_4+MCl_2+HCl The aqueous solution of alkaline earth metal salts is more stable than other salts, so that it is scarcely attacked by phosphine.
社団法人溶接学会の論文
1960-04-25