Hi,
can somone help me to find a liquid with a very low accoustic impedance
between -30 - 100 °C ( Not deuterium, Oxygen or something like that)
That means low density, low speed of sound, high compressibility

Thank you

Hans

hans zeiher wrote:

Hi,
can somone help me to find a liquid with a very low accoustic impedance
between -30 - 100 °C ( Not deuterium, Oxygen or something like that)
That means low density, low speed of sound, high compressibility

http://www.gelest.com/

Polydiethylsiloxanes (NOT polydimethylsiloxanes) will give you pour
points to -110 C across a broad range of room temperature
viscosities. DES-Txx product numbers. About $(US)1/gm

Next best is something like n-pentane or n-hexane, which are seriously
flammable. Low density and compressible. n-Hexane is mildy
neurotoxic. Avoid skin contact and breathing the vapor.

Methyl-T-branched polydimethylsiloxane (MTT-1015) is also fluid to
around -100 C.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net!

hans zeiher wrote:

Hi,
can somone help me to find a liquid with a very low accoustic impedance
between -30 - 100 °C ( Not deuterium, Oxygen or something like that)
That means low density, low speed of sound, high compressibility

Thank you

Hans

Try: http://www.ndt-ed.org/EducationResou...cimpedance.htm
http://www.ndt-ed.org/EducationResou...properties.htm