This week-end I took some time to analyse a few solvents that I had on hand using the [homemade Raman spectrometer](/article/diy-raman-spectroscopy/) with all its upgrades.

All the spectra were acquired over 1 minute exposure time with the laser temperature controlled to 22.50±0.05 °C and the laser driver current set to 300±1 mA which should be about 20 mW although I have no means of checking the actual power. The exposure time is clearly overkill and 1 second exposure time would have already been enough but I wanted to keep consistency with the previous experiments. Also, please note that I did not pay too much attention to the wavenumber scale calibration.

I let you enjoy the spectra as images but also as raw data [here](http://www.thepulsar.be/files/raman spectra.zip) :) do what you want with the data, it’s free of charge!

![](/images/articles/some-diy-raman-spectra/acetone.png)

![](/images/articles/some-diy-raman-spectra/antifreeze.png)

![](/images/articles/some-diy-raman-spectra/diethylether.png)

![](/images/articles/some-diy-raman-spectra/ethylacetate.png)

![](/images/articles/some-diy-raman-spectra/EtOH denat.png)

![](/images/articles/some-diy-raman-spectra/EtOH distil.png)

![](/images/articles/some-diy-raman-spectra/i-PrOH.png)

![](/images/articles/some-diy-raman-spectra/MEK.png)

![](/images/articles/some-diy-raman-spectra/MeNO2.png)

![](/images/articles/some-diy-raman-spectra/MeOH.png)

![](/images/articles/some-diy-raman-spectra/nitrobenzene.png)

![](/images/articles/some-diy-raman-spectra/urea.png)