Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Mulling agents

Nujol A trade name for a heavy medicinal liquid paraffin. Extensively used as a mulling agent in spectroscopy. [Pg.284]

Dunst messer, m. atmometer. -mittel, n. (Leather) mulling agent, -rohr, n. ventilating pipe. [Pg.111]

Mark any absorptions apparent in the spectrum which are known to arise from the solvent or mulling agent used. [Pg.272]

Disposable sample cards (option) Mortar and pestle Spatulas Mulling agent if required Tubing and connectors as required Pressure sensor Bottle for vaporization... [Pg.355]

Add one drop of mulling agent (Nujolor HCB) and continue grinding until a smooth paste is... [Pg.185]

Note the conditions under which the spectrum was obtained, which should be written on the spectrum as phase. If it is a solution or a mull, you will need to identify and subtract the spectrum of the mulling agent or solvent... [Pg.189]

Too little sample and there will be no sign of the sample in the spectrum. Too much sample and a thick paste will be produced, with no radiation being transmitted, A rough guide to mull preparation is to use a microspatula tip of sample to 2-3 drops of mulling agent. [Pg.43]

Subtraction can also be applied to solid samples and is particularly useful for mulls. The spectrum of the mulling agent can be subtracted, thus giving the spectrum of the solid only. [Pg.88]

Mulls are used as alternatives to pellets. The sample (1 to 5 mg) is carefully ground into a suspension using a couple of drops of a mulling agent. This muU is pressed between two IR transmitting windows to form a thin film. Common mulling agents are Nujol (liquid paraffin), Fluorolube (a chlorofluorocarbon poly-... [Pg.93]

The specimen is finely ground (1-2 pm) in an agate mortar and intimately mixed with a weakly absorbing non-volatile liquid to form a mull and the paste spread between plates. Possible mulling agents are Nujol (a mineral oil), Fluorolube S (perfluorohydrocarbon), hexachlorobu-tadiene or perchlorokarosene. [Pg.481]

Similarly, the second constituent of carbon paste mixtures is the pasting liquid [4, 5, 7, 9, 11, 38-41] - also a solute [42] or even mulling agent [43] - when the traditional binders are (i) mineral/paraffin oils, predominantly Nujol ... [Pg.380]


See other pages where Mulling agents is mentioned: [Pg.229]    [Pg.78]    [Pg.225]    [Pg.261]    [Pg.261]    [Pg.671]    [Pg.577]    [Pg.79]    [Pg.261]    [Pg.261]    [Pg.236]    [Pg.184]    [Pg.185]    [Pg.213]    [Pg.3414]    [Pg.274]    [Pg.2]    [Pg.184]    [Pg.185]    [Pg.78]    [Pg.43]    [Pg.43]    [Pg.243]    [Pg.94]    [Pg.42]    [Pg.29]    [Pg.2236]    [Pg.2237]    [Pg.2237]    [Pg.269]   
See also in sourсe #XX -- [ Pg.261 ]

See also in sourсe #XX -- [ Pg.241 ]




SEARCH



Mulling

Mulling agents Nujol

Mulls

© 2024 chempedia.info