Elementary (Hive Bee)
02-27-02 15:39
No 274290
      10% Ammonia Solution  Bookmark   

I need to concentrate this to 30-35%, Is there any other way of concentrating the 10% solution apart from adding more ammonia to it ?

Umm, how interesting !!
 
 
 
 
    Dr_Sister
(Hive Bee)
02-27-02 16:24
No 274303
      Re: 10% Ammonia Solution  Bookmark   

don't know if using a drying agent would work well or not, my inclination would be to set up a NH3 generator, by placing ammonium nitrate, chloride or other ammonium salt and drip saturated NaOH on it and bubble the gas through your ice cold solvent sitting on a scale until the desired concentration has been acheived. This could easily be done in 30 minutes.

7.10.01
 
 
 
 
    Elementary
(Hive Bee)
02-27-02 16:34
No 274304
      Re: 10% Ammonia Solution  Bookmark   

I think your right. I believe that a 35% solution should weigh about 890mg per mL (890g/L)

Umm, how interesting !!
 
 
 
 
    Dr_Sister
(Hive Bee)
02-27-02 19:40
No 274367
      Re: 10% Ammonia Solution  Bookmark   

i'm not certian of its density, but you could simply place 70g of solvent in a beaker, and bubble NH3 until the beaker has gained 30g.

7.10.01