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March 30, 2017

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K2CO3 is an excellent drying agent for some classes of organic compounds. would it be a better choice for an acid (RCO2H)or an amine(RNH2)? why?

i know this is RNH2. could it be explained that potassium carbonate itself is basic so it will make water and a salt if mixed with acid. would this work as an explaination?

  • chem - ,

    Yes. Acids react with bases (K2CO3) to produce, as you say, a salt + H2O. K2CO3 will not react with an amine.

  • chem - ,

    I forgot to mention that CO2 is produced from the CO3^- also. Actually, the reaction produces H2CO3 which then breaks down into CO2 and H2O. The other product is the salt (K salt) of the organic acid as you mention.

  • chem - ,

    Thank you soo much for all of your help!!!

  • chem - ,

    Hey could you please help me. Why would K2CO3 be a better drying agent than Na2SO4 when drying out water from cyclohexanol?

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