2-methyl-1 -propanol refractive index

Detectability may be a significant problem with homologous series of unsaturated compounds, particularly //-alkanes. For these compounds, refractive index detection or evaporative light-scattering, both of which are described elsewhere in the book, may be of use. Indirect photometry is a useful detection scheme for compounds that do not absorb in the UV. Acetone, methylethyl ketone, methyl propyl ketone, methyl isopropyl ketone, methyl isobutyl ketone, and acetophenone are added to an acetonitrile/water mobile phase, generating a negative vacancy peak when the nonchro-mophoric analyte emerges and a positive peak if the ketone is adsorbed and displaced.70 Dodecyl, tetradecyl, cetyl, and stearyl alcohols also have been derivatized with 2-(4-carboxyphenyl)-5,6-dimethylbenzimidazole and the derivatives separated on Zorbax ODS in a mobile phase of methanol and 2-propanol.71... 

Methyl-2-nitro-l-propanol is a colorless liquid with a strong combustion performance. When it is combusted under confined conditions, an explosion will occur. It density is 1.135 g/cm with melting point of -1 °C, boiling point of 204.4 °C (760 mmHg), flash point of 92.1 °C, vapor pressure of 0.0634 mmHg (25 °C) and refractive index of 1.553. 

Here Y denotes a general bulk property, Tw that of pure water and Ys that of the pure co-solvent, and the y, are listed coefficients, generally up to i=3 being required. Annotated data are provided in (Marcus 2002) for the viscosity rj, relative permittivity r, refractive index (at the sodium D-line) d. excess molar Gibbs energy G, excess molar enthalpy excess molar isobaric heat capacity Cp, excess molar volume V, isobaric expansibility ap, adiabatic compressibility ks, and surface tension Y of aqueous mixtures with many co-solvents. These include methanol, ethanol, 1-propanol, 2-propanol, 2-methyl-2-propanol (tert-butanol), 1,2-ethanediol, tetrahydrofuran, 1,4-dioxane, pyridine, acetone, acetonitrile, N, N-dimethylformamide, and dimethylsulfoxide and a few others. 

Resa, J. M. Gonzalez, C. Goenaga, J. M. Iglesias, M. Density, refractive index, and speed of sound at 298.15 K and vapor-liquid equUibria at 101.3 kPa for binary mixtures of ethyl acetate + 1-pentanol and ethanol + 2-methyl-1-propanol J. Chem. Eng. Data 2004,49, 804-808... 

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