What is the lowest concentration that can be achieved through dehydration using CaCl2?
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There is about 100 kg of hydrocarbon sample with a water content of around 600 ppm. Can CaCl2 be used to reduce the water content to below 100 ppm? I don’t have molecular sieve on hand, but I’m not sure about its effectiveness in removal This post was last edited by zxh6267 on 2009-3-25 13:25.]
The water content is already very low, so it’s unlikely that CaCl2 will be effective; it is recommended to use 4A molecular sieve, which should be activated before use. It’s best to fill a chromatography column with this sieve and then pass the sample through it for adsorption – this should meet the requirements of the original poster.