The Infrared Determination of Oil in Phosphorus
The chemical methods for determining oil in the parts per million range in yellow phosphorus are, at best, time-consuming and often very difficult to reproduce. A simple rapid infrared method dependent upon the measurement of the C—H bands of the oil dissolved in a molten sample of yellow phosphorus is routinely used for this determination in our laboratory. This method requires approximately 15 to 30 min per analysis in contrast to 2 to 4 hr for other methods.
KeywordsCarbon Tetra Phosphorus Trichloride Seporatary Funnel Carbon Tetrachloride Solution Yellow Phosphorus
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