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出典:『Wikipedia』 (2011/05/10 02:04 UTC 版)

英語による解説

引用

Nujol is a brand of mineral oil by Plough Inc., cas number 8042-47-5, and density 0.838 g/mL at 25 °C, used in infrared spectroscopy. It is a heavy paraffin oil so it is chemically inert and has a relatively uncomplicated IR spectrum, with major peaks between 2950-2800, 1465-1450, and 1380–1370 cm⁻¹. The empirical formula of Nujol is hard to determine exactly because it is a mixture but it is essentially the alkane formula C_nH_{(2n + 2)} where n is very large.