Date: Tue, 15 Mar 2005 15:43:58 -0600

Author: Stan Dodds

Subject: Re: LN2

Post:


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The usual commercial dewar contains about 160 liters, and loses about=20
1% per day if it is in good condition. In many areas you can find a=20
supplier who will loan you the container for the cost of the liquid,=20
delivering a full replacement when the old one is empty.

Presumably you asked about sharing a supply with your biologist or=20
biochemist colleagues. It's often used to preserve bio materials.

Stan

On Mar 15, 2005, at 2:23 PM, David Kardelis wrote:

> How long will LN2 last in 100L dewar? =A0I don=92t have a source of =
LN2 on=20
> campus for demos and I only have a 2L wide mouth flask anyway so if I=20=

> want any I have to run out and get it each time. There never seems to=20=

> be extra time before the class when I want to use it. If I got a 100L=20=

> or a 50L dewar and had it filled each month, would it last or would I=20=

> have to fill it every few days which gets me back to where I am now.=A0=20=

> If it was available I would use it in more demos, but as it is I=20
> hardly ever do because it is a hassle to deal with. =A0
>
> =A0
>
> Also are there any special storage requirements that I should know=20
> about.
>
> =A0
>
> Thanks dave
>
> =A0
>
> David Kardelis Ph.D.=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0
>
> Chairman; Dept of Chemistry and Physics
>
> College of Eastern Utah
>
> 451 E 400 N
>
> Price, UT 84501
>
> =A0
>
> david.kardelis@ceu.edu
>
> 435-613-5258
>
> 435-613-5125 (lab phone)
>
> 435-613-5996 Fax
>
> =A0

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The usual commercial dewar contains about 160 liters, and loses about
1% per day if it is in good condition. In many areas you can find a
supplier who will loan you the container for the cost of the liquid,
delivering a full replacement when the old one is empty.


Presumably you asked about sharing a supply with your biologist or
biochemist colleagues. It's often used to preserve bio materials.


Stan


On Mar 15, 2005, at 2:23 PM, David Kardelis wrote:


ArialHow long will
LN2 last in 100L dewar? =A0I don=92t have a source of LN2 on campus for
demos and I only have a 2L wide mouth flask anyway so if I want any I
have to run out and get it each time. There never seems to be extra
time before the class when I want to use it. If I got a 100L or a 50L
dewar and had it filled each month, would it last or would I have to
fill it every few days which gets me back to where I am now.=A0 If it
was available I would use it in more demos, but as it is I hardly ever
do because it is a hassle to deal with. =A0


=
Arial=A0 ly>


ArialAlso are there any
special storage requirements that I should know =
about.


Arial =
=A0


ArialThanks =
dave


=
Arial=A0 ly>


Times New RomanDavid
Kardelis =
Ph.D.=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=



Times New Roman Chairman;
Dept of Chemistry and Physics


Times New RomanCollege of
Eastern Utah


Times New Roman451 E 400 =
N


Times New RomanPrice, UT
84501


Times New =
Roman=A0


Times New =
Romandavid.kardelis@ceu.edu tfamily>


Times New =
Roman435-613-5258


Times New Roman435-613-5125
(lab phone)


Arial435-613-5996 =
Fax


Times New =
Roman=A0

=

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From DWARN@boisestate.edu Tue Mar 15 17:02:26 2005