I'm sorry if this is the wrong section, perhaps it belongs in physics, but

 

how cold is ice + salt + water? I'm wondering because most of the places I look it says like -10 degrees, which seems about right if you use the freezing point depression equation.

 

However, I was easily able to condense a drop of chlorine (I'll get a better picture soon, but here), whose boiling point is -35 degrees celsius, -30f. I used water + ice + a good amount of magnesium sulfate and sodium chloride.

 

I think maybe because I used two different salts, i was able to circumvent the common ion effect...

 

oh, and don't make chlorine.

Edited March 30, 200916 yr by max.yevs

I'm sorry if this is the wrong section, perhaps it belongs in physics, but

 

how cold is ice + salt + water? I'm wondering because most of the places I look it says like -10 degrees, which seems about right if you use the freezing point depression equation.

 

However, I was easily able to condense a drop of chlorine (I'll get a better picture soon, but here), whose boiling point is -35 degrees celsius, -30f. I used water + ice + a good amount of magnesium sulfate and sodium chloride.

 

I think maybe because I used two different salts, i was able to circumvent the common ion effect...

 

oh, and kids: don't make liquid chlorine.

 

no. There's an almost 100% chance that is just cold water with chlorine dissolved in it.

ok UC, I know that picture is horrible and inconclusive. And you could argue that there was moisture in the air which condensed. But I'm pretty sure it was chlorine. But I guess I can't argue that at this point.

 

I'll have to make chlorine again, I need it to precipitate iodine. Maybe a more convincing picture this time.

Edited March 30, 200916 yr by max.yevs