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Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: Frater EIE on April 25, 2010, 03:46:39 PM

Title: "volatized" salts?
Post by: Frater EIE on April 25, 2010, 03:46:39 PM
Is it possible for a salt to become "volatized"? For instance, can, say, potassium carbonate form a complex compound with more volatile substances, so that it does not recrystallize when the solution is evaporated off, but actually comes over with the solution in a distillation?
Title: Re: "volatized" salts?
Post by: Stepan on July 08, 2010, 01:45:11 PM
Is it possible for a salt to become "volatized"? For instance, can, say, potassium carbonate form a complex compound with more volatile substances, so that it does not recrystallize when the solution is evaporated off, but actually comes over with the solution in a distillation?

Potassium Carbonate will "evaporate" and travel in the air as a fine mist, when droplets of water evaporate, and residual salt forms fine micro crystals suspended in air. 

At the same time, some salts do sublimate, let say Ammonia Chloride.
Title: Re: "volatized" salts?
Post by: 408 on July 08, 2010, 02:36:35 PM

Volatility is a function of temperature.  Heat sodium chloride to 900C and you can easily smell it. 

Add hexafluoroacetone to a solution of TM salts, and the metal complex with hexafluoroacetonate will be very volatile.

Stepan: aerosols and dusts are not examples of things in a gaseous phase!
Title: Re: "volatized" salts?
Post by: Stepan on July 09, 2010, 12:22:47 PM

Volatility is a function of temperature.  Heat sodium chloride to 900C and you can easily smell it. 

Add hexafluoroacetone to a solution of TM salts, and the metal complex with hexafluoroacetonate will be very volatile.

Stepan: aerosols and dusts are not examples of things in a gaseous phase!

Thank you 408. In the question, the word "volatized" was put in question marks, which assumes different mechanisms. Also, your second example is not true evaporation.