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我们把青霉素空盒中的硅胶干燥剂处理成变色硅胶,代替无水氯化钙或浓硫酸等干燥剂,不仅节约了无水氯化钙等干燥剂,克服了有时在市场上购买不到无水氯化钙的困难,而且把以往当做废物乱扔的青霉素盒中的硅胶也利用上了,现将其处理方法介绍如下。从青霉素盒中取出硅胶,让它在空气中或置于筛孔较少的药筛上放在蒸汽水浴上,充分吸收水分,直至用数滴水滴于已吸收水分的硅胶上而极少爆制成碎粒为止,然后加入2—5%的氯化亚钴溶液,浸约5个小时。除去残液后,于105℃的烘箱中烘到变成为蓝色即得。
We put the penicillin empty box of silica gel desiccant into color silica gel, instead of anhydrous calcium chloride or concentrated sulfuric acid and other desiccants, not only saving anhydrous calcium chloride and other desiccants, to overcome the sometimes not available in the market to buy no Calcium chloride water difficult, but also in the past as litter of penicillin cartridge silica gel also used, and now its treatment methods are described below. Remove the silica gel from the penicillin box and leave it in the air or on a sieve with less mesh on a steam bath to fully absorb the moisture until it is minimally exploded with a few drops of water on a silica gel that has absorbed moisture Into pieces so far, then add 2-5% cobaltous chloride solution, soak about 5 hours. After removing the residue, baking in an oven at 105 ° C becomes blue.