Elementary Productions: What are the properties of Dry Ice?

What is the minium Temprature you can maintain with Dry ICe. Can it be used as alternative to Liquid Nitrogen.

Kinjal

As Dry Ice sublimes at -78,5 degrees Celsius at atmospheric pressure, this is the minimum temperature you can maintain with Dry Ice.

Liquid Nitrogen has a much lower boiling point, and for this reason, Dry Ice is unable to substitute it.

Hello!

Do you know alot about fireworks to?
One thing i keep trying to find out is, how to make German Dark.
Becouse you are a professor you know it?

I have tried a lot of time's to find it out and tried a lot of diffirent things
But it all didnt work..


Gr Jeroen :)

hey mabakken!
i watched all youre movie's.
and i was wondering, how do you clean everything? or with what? or do you use new bottles and beakers everytime?
youre movies are very nice and we can learn much from you,

jeroen from holland

Hi Jeroen.

It depends on what I need to clean out.
Manganese Dioxide is readily removed using Hydrogen Peroxide, whilst organic residue can be cleaned with concentrated Sodium Hydroxide.
Sometimes, the test- tubes and beakers become "uncleanable", and are therefore thrown away. =)

cool (wat i say is kind of ironic ,cool get it?) but it cood for keeping stuff cold and fresh!

Allright thanks! It's fun to condense things with liquid nitrogen...

Would this have the same effect that of liquid nitrogen?

That depends on what you mean. Dry Ice is solid, liquid Nitrogen is liquid. Also, Dry Ice has a temperature of -78,5C, liquid Nitrogen has a temperature of -196C. This means that if you are to condense something with a melting point lower than -78C, you need liquid Nitrogen. =)

thats so damm leetsauce.....