I know that quartz is a mineral and quartzite is a rock. I know the difference between the two. I want to know how to TELL the difference between the two. Thanks!
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NaCl plates are transparent over the normal ir scanning range (400 cm^-1 ~ 4000 cm^-1). I believe quartz absorbs at 3585, 3500 and 3410 cm-1, which gets in the way of most organic compounds. However, quartz is very transparent below 400 cm-1, down to 10cm-1. NaCl is more opaque in this range, so quartz is favored for low frequency investigations. nujol gives strong absorbtion peaks at 2923, 2853cm-1, which pretty much drown out any signals from a samples alkyl CH bonds - not a big problem for tPhMeOH. There are also two medium peaks at 1461 and 1377 cm^-1, but these are less intrusive than the higher frequency CH stretching absorbtion. Nujol is not a big problem for triphenolmethanol, the key absorbtion you are looking for is the alcohol (broad, around 3500 cm^-1), and a smaller peak at about 1500. You can even do a very dilute scan to observe the dissapearance of hydrogen bonding - interesting! You also expect to see out of plane absorbances from the phenyl rings down below 1400 cm^-1
