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H_2 and Cl_2 Production in the Radiolysis of Calcium and Magnesium Chlorides and Hydroxides

机译:钙镁氯化物和氢氧化物辐射分解中的H_2和Cl_2生成

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摘要

The production of H_2 has been examined in the y-ray and 5 MeV He ion radiolysis of CaCl_2 centre dot 2H_2O,CaCl_2-6H_2O,Ca(OH)_2,MgCl_2 centre dot 2H_2O,MgCl_2 centre dot 6H_2O,and Mg(OH)_2.The highest yield for the formation of H_2 is observed in the gamma-radiolysis of MgCl_2 centre dot 2H_2O (0.72 molecule/(100 eV),75 nmol/J),but the yield decreases with dose due to the relative instability of the dihydrate.The H_2 yields with the other compounds range from 0.04 to 0.2 molecule/(100 eV) (4.2-21 nmol/J),which is lower than that from pure water or 2 M chloride solutions.There appears to be no relationship between the results for H_2 from waters of hydration with that from aqueous salt brines.No particular trend is observed in the radiation chemical yields of H_2 with respect to the cation or the degree of hydration.The production of C1_2 is found only in the y-radiolysis of CaCl_2 with a few weight percent of excess water.No C12 was found in the 5 MeV He ion radiolysis of identical systems.None of the other compounds examined here showed detectable amounts of C1_2 formation.
机译:已在y射线和5 MeV He离子辐照下对CaCl_2中心点2H_2O,CaCl_2-6H_2O,Ca(OH)_2,MgCl_2中心点2H_2O,MgCl_2中心点6H_2O和Mg(OH)_2进行了H射线辐射检测在MgCl_2中心点2H_2O的伽马射线辐照中观察到H_2形成的最高收率(0.72分子/(100 eV),75 nmol / J),但是由于二水合物的相对不稳定性,收率随剂量降低其他化合物的H_2收率范围为0.04至0.2分子/(100 eV)(4.2-21 nmol / J),低于纯水或2 M氯化物溶液的H_2收率。从水合盐水和盐水中获得H_2的结果。关于阳离子或水合程度,H_2的辐射化学收率没有观察到特别的趋势。 CaCl_2含有少量重量百分比的过量水。在相同浓度的5 MeV He离子辐解中未发现C12系统在此检查的所有其他化合物均未显示可检测到的C1_2形成量。

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