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干燥剂 包括普通干燥剂、中空玻璃干燥剂(分子筛)等。

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Old 2006-10-12, 07:37 PM
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Default 钠a型(4a)分子筛

钠a型(4a)分子筛是指a型晶体结构的钠型,能吸附临界直径不大于4a的分子.

用于密闭的气体或液体系统中进行静态脱水。在家用冷冻系统,药品包装,汽车空调,电子原件,易变质的化学品中作为静态干燥剂或在涂料塑料系统中作为脱水剂。在工业上也可用于饱和烃物料的干燥,并能吸附甲醇、乙醇、硫化氢、二氧化碳等。可用于r-12和r-22系统中,亦可用于气、液体组分的分离、提纯,如氩的纯制,试剂无水乙醇的制取等,凡3a型能吸附的分子4a型都能吸附。
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