Originally posted by BromicAcid
I have never had a problem using an air conditioner compressor as a vacuum pump. And they all work very well and best of all you can just use them
till they destroy themselves. Beware that pulling ammonia through them will easily eat the coils
http://www.destructve.com/bromicacid/carbonate.htm
The link that is above goes to a page where I have my apparatus set up for the preparation of ethylene carbonate. The vacuum is used to pull ammonia
off as it is formed. I ran this into a wash bottle full of 30% H<sub>2</sub>SO<sub>4</sub> but as the reaction progressed the
ammonia gas being pulled through the pump started to dissolve it leading to the blue color seen in the wash bottle in the picture.
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