1.Why NaCl plates instead of quartz plates are used in IR spectroscopy to load sample?2. If triphenylmethanol is mixed with Nujol oil to make a mull for determining its IR spectrum, whatabsorption peak(s) in the spectrum will be attributed to Nujol oil instead of triphenylmethanol? Nujol oil is an alkane.Friends plz help me outthanks
fairly unusual to have mercury at anything but very trace concentrations. Pretty well all rocks and minerals contains a good portion of the elements, but the concentrations for many elements is often down in the parts per billion or less level. Mercury isn't normally an element that is associated with the mineral quartz as a secondary element. I bet there are quartz crystals somewhere that actually have little included droplets of mercury, but I have never seen that, It would be a most unusual thing. of course, if you had told me ten years ago there is a cave in Mexico with quartz crystals as big as a car, I would have laughed. I would have been wrong to laugh, because there is such a cave.
Quartz is SiO2 and mercury is Hg, so no.
Vitki's explanation on the possibility of mercury occurring as an impurity in the SiO2 crystal lattice of quartz is right on. Most minerals contain some type of impurity, and if your detection equipment is sensitive enough (ppb or ppt level), you can find a lot of impurities in what might appear to be pure quartz. However, topaz is NOT a type of quartz. Topaz is a silicate mineral with the formula Al2SiO4(F,OH)2.
No, quartz is pure SiO2 and any sample that had mercury in it would be distorted.
Quartz does not TYPICALLY contain mercury. What most people think of as Quartz is actually a crystallized structure of SiO2. The purity of natural crystals is relative, and while artificial quartz may be somewhat more pure, even one atom out of a trillion variation represents impurity. these impurities are often visible in unexpected ways. For example, certain iron crystals within the quartz can result in a purplish color-what we call amethyst is really this type of a quartz crystal. a couple other common varieties of Quartz crystals that result from these types of impurities are citrine and topaz. Theoretically, a Hg (mercury) atom could get caught in the crystal lattice, but in order for this to happen the Hg and SiO2 would have to be in a sealed container under tremendous pressure. Remember that Hg turns to gas at room temperature? as a gas it would have an easier time to squeeze out of the container. So...IF you find some quartz that contains mercury...hang on to it, it may be worth some money. (and you may want to keep it in the freezer.)
