What is the refractive index of Methanol in the Infra Red range?

[vici]

I'm looking for Methanol (CH3OH)
refractive index (n,k) table in Infra Red 2-10micron
If anyone can help me with that

 

[Manchot]

What kind of concentration are we talking about? If it's small, you can use the index of water as a good approximation.

 

[Gokul43201]

I think the OP needs data for "pure" methanol.

 

[dlgoff]

In my CRC handbook of chemistry and physics, it has a value of 1.3288. But it doesn't tell me at what frequency this value is for.

 

[vici]

Thanks, for your help.
But Methanol has a "finger prints" at IR range
that means that frequency dependence can't be ignored.
(at least for my needs)

 

[Gokul43201]

http://riodb01.ibase.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi

You can look up the IR spectrum for methanol at the above database.

 

[vici]

I checked this data base already but all they have it's transmission spectra up to 2.5 micron