Neat oils drawing

Drawing with neat oil subcategory BPT (total cyanide) ... 

Drawing with neat oils 1-day Max. Monthly Avg. 40 CFR 467, Subpart E... 

Infrared Spectroscopy Obtain the infrared spectrum of the (—)-carvone sample from spearmint or of the (+)-carvone sample from caraway (see Technique 25, Section 25.2). Compare your result with that of a person working with the other isomer. At the option of the instructor, obtain the infrared spectrum of the (+)-limonene, which is found in both oils. If possible, determine all spectra using neat samples. If you isolated the samples by preparative gas chromatography, it may be necessary to add one to two drops of carbon tetrachloride to the sample. Thoroughly mix the liquids by drawing the mixture into a Pasteur pipette and expelling several times. It may be helpful to draw the end of the pipette to a narrow tip in order to withdraw all the liquid in the conical vial. As an alternative, use a microsyringe. Obtain a spectrum on this solution, as described in Technique 25, Section 25.2. 

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