Refractive index of 5 glycols and glycerol versus wavelength and temperature

The dataset consists of tables of refractive index values versus wavelength and temperature (n(lambda, T) for 6 hygroscopic organic liquids. Each table corresponds to one liquid: ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol (propane-1,2-diol), and glycerol. The measurements cover the range from 390 to 1070 nm in wavelength and from 1 to 45ºC in temperature. Each data point corresponds to a mean value of several measurements. The outlaying measurement series were discarded. The accuracy of the refractive index measurement is estimated to be ±0.0003, while the accuracy of the wavelength measurement is ~1%, and the accuracy of the temperature measurement is −0.3/+0.6 K. The measurements were performed with a modified Abbe refractometer, calibrated with water at each temperature. For liquids other than ethylene glycol, the calibration at 1ºC was augmented with that for ethylene glycol. We sampled the following liquids: (i) ethylene glycol, anhydrous, 99.8% Sigma-Aldrich lot # STBG3967V; (ii) diethylene glycol, ≥99.0%, Sigma lot # BCBT4833; (iii) triethylene glycol, 99%, Alfa Aesar lot # 10198029; (iv) tetraethylene glycol, 99%, Alfa Aesar lot # M17E015; (v) propylene glycol (propane-1,2-diol), ≥99.5%, Sigma-Aldrich lot # MKC80613V; (vi) glycerol, BioUltra, anhydrous, ≥99.5%, Sigma lot # BCBS7814V.

搜集汇总

背景与挑战

背景概述

该数据集提供了6种吸湿性有机液体（包括5种乙二醇类和甘油）的折射率随波长和温度变化的数据表，测量范围覆盖波长390-1070 nm和温度1-45°C，数据基于多次测量的平均值，并具有高精度测量指标。数据集特点是专注于有机液体的光学性质研究，适用于光学和材料科学领域，且详细说明了测量方法和液体来源，确保数据的可靠性和可重复性。