[metalcloud]

1. i want to heat up chemicals in flask with heating agent in glove box.

2. i want to perform distillation in glove box, but i dont know what agent should i use to condense the vapors. any suggestion what kind of agent please? and i need a cooling system that can keep agent at low temperature, is there any suggestion of system that could bring into glove box?

note : the operation should be operated under free oxygen and moisture environment, because the chemicals in glove box are sensitive to moisture and oxygen

thank you

[Archer]

What temperatures do you require for heating and cooling?

[metalcloud]

cooling : 15 degree Celsius or below is better

heating : around 40-130 degree Celsius

[Archer]

Do you have access to a circulating chiller unit?

[Arkcon]

Also, how big is your glove box?  What dimensions, what is it made of, maybe give us the manufacturer and model.  That way, we can try to see a picture, or maybe someone has the same setup, and we can help.

[Corribus]

Some glove boxes are specifically designed to handle solvents. I'm not sure I would do this in a conventional dry box. There are simple ways to do air free or moisture free reactions on a bench top. Is there a reason you can't do this?

[metalcloud]

@Mr. Archer: i have the circulating chiller unit but it is too big, and the glove box doesn't have any hole access outside-inside , does the chilling unit agent can be substituted by oil?

@Mr. Arkcon: from innovation technology manufacture (pure lab) nitrogen 2GB with dimension of 1250mm W x 780mm D x 900mm H. it has both big and small chamber.

@Mr. Corribus: how do you perform air free and moisture free reaction on bench top? actually my problem lies on the separating chemicals that cannot be operated under the existence of moisture and air.

[Archer]

Get a copy of this book

 http://www.crcpress.com/product/isbn/9781439860977

It has very comprehensive sections on air and moisture sensitive materials in a fume hood rather than a glove box.

Do you mind telling us what type of substances you are working on?

[408]

We had this problem once.  Ended up putting metal blocks in the freezer at -20C or so, in  a plastic bag.  These were then pumped into the glove box and divided between two large beakers.  Each was filled with DMF, and condenser hoses were taped into each beaker, after removing air from the hoses with a large syringe, kinda like how one would siphon gas.  This way by raising one beaker relative to the other, the DMF would flow through the condenser.  When one beaker got close to empty the relative height positions would be switched.  Most high-maintenance distillation ever. 

[Corribus]

@Mr. Corribus: how do you perform air free and moisture free reaction on bench top? actually my problem lies on the separating chemicals that cannot be operated under the existence of moisture and air.

http://en.wikipedia.org/wiki/Schlenk_line

[metalcloud]

@archer : metal hydride

thank you everybody!! i'll try it

[opsomath]

It's a much better idea to do your distillation under nitrogen or argon using a Schlenk line instead, if you can. Very few glove boxes are designed for the kind of big PV changes involved in distillation.