The Vespiary

The Hive => Chemistry Discourse => Topic started by: Elementary on February 27, 2002, 03:39:00 PM

Title: 10% Ammonia Solution
Post by: Elementary on February 27, 2002, 03:39:00 PM

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 !!

Title: Re: 10% Ammonia Solution
Post by: Dr_Sister on February 27, 2002, 04:24:00 PM

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

Title: Re: 10% Ammonia Solution
Post by: Elementary on February 27, 2002, 04:34:00 PM

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

---

Umm, how interesting !!

Title: Re: 10% Ammonia Solution
Post by: Dr_Sister on February 27, 2002, 07:40:00 PM

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