[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Use of Proplyene Glycol
- Subject: Use of Proplyene Glycol
- From: "Richard Illig (717) 327-3568" <ILLIG.RICHARD@a1.pader.gov>
- Date: Mon, 08 Jun 1998 08:50:06 -0400 (EDT)
- List-Name: P2Tech
- Posting-Date: Mon, 08 Jun 1998 09:29:00 -0400 (EDT)
- Reply-To: "Richard Illig (717) 327-3568" <ILLIG.RICHARD@a1.pader.gov>
- Sensitivity: Company-Confidential
- Ua-Content-Id: D203ZXKNDKJZC
Last week I sent a message to the list about uses for propylene
glycol. In the message I stated that optimum performance is
obtained with a 50-50 dilution of proplyene glycol and water(...
relative to aircraft de-icing or automotive coolant).
Since that message, this statement was questioned and it was
indicated that proplyene glycol is best used at 100 percent,
unlike ethylene glycol. Reportedly, the maximum boiling point of
proplyene glycol is in its pure state.
(The freezing point was not discussed, but with aircraft the worry
is with water freezing and building-up on a surface, not the
glycol freezing point.)
Is anyone able to clarify this information? I apologize if my
information was incorrect.
(I realize, relative to water, that changes in freezing and
boiling points is a constant based on the number of moles
introduced into the solution. However, I don't think this is the
issue. Do cars using proplyene glycol use it at near 100 percent
concentration?? Are aircraft de-icing operations spraying pure
Any help would be appreciated.