Separate Water from Carbon Tetrachloride by Fractional Distillation

AI Thread Summary
Fractional distillation can separate water from carbon tetrachloride, as they have different boiling points—carbon tetrachloride at 76°C and water at 100°C. However, carbon tetrachloride may become saturated with water, which can dissolve in the organic phase. To achieve a nearly anhydrous product, it is recommended to leave the distilled carbon tetrachloride over finely divided anhydrous sodium sulfate for a day. Safety precautions are crucial, as carbon tetrachloride is a liver toxin, and the procedure should be conducted in a fume hood. An alternative method involves decanting the carbon tetrachloride from water and drying it with anhydrous calcium chloride.
ritwik06
Messages
577
Reaction score
0
Can I separate water from Carbon tetrachloride by the method of fractional distillation? (I agree separating funnel is a better method)
 
Chemistry news on Phys.org
Carbon tetrachloride boils at 76C and water at 100C. They should be separable by simple distillation. The carbon tetrachloride will be saturated with water. You may not see it but water will be dissolved in the organic phase. Leave the distilled carbon tetrachloride standing over finely divided anhydrous sodium sulfate for a day should dry it up fairly effeciently and give you an almost anhydrous product.

You should realize that carbon tet is a liver toxin and that this procedure should be performed in an efficient hood.
 
why not decant

chemisttree said:
Carbon tetrachloride boils at 76C and water at 100C. They should be separable by simple distillation. The carbon tetrachloride will be saturated with water. You may not see it but water will be dissolved in the organic phase. Leave the distilled carbon tetrachloride standing over finely divided anhydrous sodium sulfate for a day should dry it up fairly effeciently and give you an almost anhydrous product.

You should realize that carbon tet is a liver toxin and that this procedure should be performed in an efficient hood.

Carbon tetrachloride will little be dissolved in the water.Decanting from water then drying it with anhydrous calcium chloride will be ok.
 
I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
Back
Top