Only exotic 100 % H2O2 has a FP around 0°C, like water.
But propellant grade 80 % freezes at – 28°C and 90 % at – 12°C.
Right, still not OK in cold winters or near polar bases without heated storage
hangars. Neither in flight tanks during lunar (or Martian) nights. Should the
ice crack the tank walls, Houston ‘d have a big problem.
John
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Dion van Strydonck
Sent: vrijdag 14 juli 2017 2:03
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: [UK OFFICIAL] Moon Express - HTP/kero
Another drawback that HTP has is its rather poor freezing point, as it melts
only just below the freezing point of water at atmospheric pressure, which is
fine for Earth applications but rather annoying for a deep space mission.
…
