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<p>I believe NO is the propellant used in aerosol whipped creams
like 'Reddi Whip.' Might be a bit messy, though.<br>
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<div class="moz-cite-prefix">On 9/29/2016 9:58 AM, Richard Kahn
wrote:<br>
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<p>I need to "freeze" a stud to remove it. I understand that it
can be done with nitrus oxide and I'm not sure where a small
quantity of it can be obtained (like a spray paint can size).
Dry ice is too difficult to use as it needs to be applied in
the vertical position. Any one have any thoughts?</p>
<p>Rich Kahn<br>
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