[Research on Raman spectra of glycerinat at the pressure of 0-1.0 GPa and the temperature of 29 degrees C].
The present paper investigates Raman spectral characters of liquid glycerin by the experiment at the pressure of 0-1.0 GPa and the temperature of 29 degrees C, and defines the relation between the pressure and the Raman peak of glycerin at ambient temperature. The result shows that there are two characteristic Raman peaks of glycerin defined as v(CH) and v(CH2), and both of them move to higher positions as system pressure increases. The relation between the system pressure and peak positions of glycerin is given as the following: v(CH) = 0.0092P + 2886.67 and v(CH2) = 0.009 4P + 2948.53. On the other hand, glycerin is reliable as a liquid pressure gauge for high pressure experiment. The equation applied to demarcate system pressure is also showed: P = 106.4 v(CH2) - 3.14 x 10(5).
Liu
Jun-jie
JJ
School of Earth and Space Sciences, Peking University, Beijing 100871, China.
Zheng
Hai-fei
HF
D005990:Glycerol / Q000032:analysis*; D011312:Pressure; D013059:Spectrum Analysis, Raman / Q000295:instrumentation / Q000379:methods*; D013696:Temperature
D005990:Glycerol