Hmm… “unboiled/de-boiled/mis-boiled nitrogen”.  Another option is *{voQSIp jeD} “thick/dense/viscous nitrogen” in parallel to {bIQSIp 'ugh} “deuterium” (lit. "heavy hydrogen"). 

Other qualities to consider in this discussion include {yIQ} “be wet”, {Sub} “be solid, {taD} “be frozen”, {bIr} “be cold”, {tuj} “be hot” and {ghun} “be warm”.

--

Voragh

tlhIngan ghantoH pIn'a'

Ca'Non Master of the Klingons

From: tlhIngan-Hol [mailto:tlhingan-hol-bounces@lists.kli.org]
On Behalf Of Ed Bailey
Sent: Friday, August 05, 2016 9:32 AM

{rugh bIQSIp} is also consistent with "N2 composed of N1," since it's hydrogen made from different subatomic particles, not hydrogen that has been somehow converted.

An alternative way of saying liquid nitrogen, liquefied that is, like for industrial use, might be {pubHa'bogh voQSIp}.