Pag. 1 de 2
Siguiente pag >>
In the experiment introduced here, a mixture of water and methylated spirits made up by students themselves is to be separated into its components. The alcohol contained in the mixture will be distilled and collected in a conical flask. The simple distillation apparatus used here ...
When the model experiment on the distillation of petroleum is conducted using the comprehensive chemistry/biotechnology experiments system, the glass equipment clearly stands out against the dark background of the large-format base plate. The strong contrast between this ...
Carboxylic acids and alcohols can react with esters under
suitable conditions. Water forms as a by-product and, under the
properly selected reaction conditions, it can be continuously
separated by means of a distilling trap (Dean-Stark apparatus). The
progress of the reaction can ...
All gases may be considered, to a first approximation, to obey
the ideal gas equation which relates the pressure p,
volume V, temperature T and amount of
substance n of a gas. The amount of gas n is
expressed as the number of moles and is equal to m /
M where m ...
Gases are condensing when they are cooled and at high
pressure. In this experiment butane is condensed by cooling it
to ca. -15 °C. In the second part of the
experiment butane is condensed by compressing it.
The separation power of a rectification (fractionating) column
can be determined using an appropriate binary mixture whose
equilibrium composition is measured in the distillation flask and
in the domed glass head of the distillation apparatus. The number
of theoretical trays can ...
Haloalkanes react with magnesium to the so-called Grignard
reagents in accordance with the general formula RMgX. With X =
bromide or iodide, the reaction works best. Chlorides are usually
more inert and require higher temperatures and longer reaction
times for the conversion. ...
PHYWE Systeme GmbH & Co. KG • Robert-Bosch-Breite 10 • D-37079 Göttingen • Tel.: +49 551 604-0 • email@example.com PHYWE en YouTube | Formulario de Contacto | Ventas Internacionales | Servicio
PHYWE presenta la nueva unidad de rayos X: tecnología innovadora, máxima seguridad y comodidad.