molar mass determinationWe intend to divulge an easy experiment that permits the determination of molar masses of various compounds by cryoscopy. The major advantage of this is the use of the tert-butyl alcohol as a solvent, which requires simple apparatus and easy procedures. The melting point ...
themolarmassof the unknown substance. Summary ofLabProcedure If not already completed‚ crush a small amount of BHT and pack it into a capillary tube. Use a small rubber band to clamp the capillary tube to the thermometer‚ and fasten the thermometer to a ring stand. Fill a Thiele tube...
Mixtures of low molar mass polyester polyols having a weight-average molar mass Mw of not more than 2000 g/mol, with hydroxyl numbers of from 80 to 300 mg/g and acid numbers of from 5 to 35
Molar mass parametersSEC/MALLSSolid-state 13C-NMRRegenerated cellulose materialThe molar masses and molar mass distributions of three commercial regenerated cellulose samples, viscose rayon, Tencel, and Bemliese (or cuprammonium nonwoven), have been determined by dissolution in 8% ...
Densities and viscosities of Glycine, DL-Alanine, L-Valine and L-Arginine HCI have been measured in water + Tertiary butyl alcohol (TBA) mixtures ranging from pure water to 60% TBA by mass at 303.15 K. From the densities, apparent molar volumes and limiting apparent molar volumes of the ...
In this work, physical properties (densities and speeds of sound) for the binary systems {1-propanol, or 2-propanol, or 1-butanol, or 2-butanol, or 1-pentanol+1-butyl-3-methylimidazolium trifluoromethanesulfonate} were experimentally measured from T=(293.15 to 323.15)K and at atmospheric ...
Macedo, Osmotic and apparent molar properties of binary mixtures alcohol þ 1-butyl-3-methylimidazolium trifluoromethane-sulfonate ionic liquid, J. Chem. Thermodyn. 61 (2013) 64e73.Gonzalez, E.J., Calvar, N., Dominguez, A., Macedo, E.A.: Osmotic and apparent molar properties of binary ...