Criteria of purity of organic compounds, Chemistry

Criteria of purity of organic compounds

The purity of an organic compound can be determined by ascertaining its some physical constants such as m.p., b.p., defined gravity, refractive index and viscosity. In common practice, sharp m.p. (in case of solids) and boiling point (in case of liquids) are employed as criteria for purity as their determination is feasible in the laboratory. A pure organic solid has a specific and sharp melting point, when an impure element has a lower and indefinite melting point.

Posted Date: 4/15/2013 3:43:21 AM | Location : United States






Your posts are moderated
Related Questions

The four quantum number for the valence shell electron or last electron of sodium (Z = 11) is: (1)  n =1, l= 1, m= -1, s= -1/2    (2) n =3, l=0, m=0, s= +1/2   (3) n =3,


The energy released when one mole of ionic crystal is produced by the combination of the corresponding gaseous (+ve) and (-ve) ions brought from infinite distance is known as latti

The elements of first transition series from variety of oxides of different oxidation states having general formulae  MO, M 2 O 3 , M 3 O 6 , MO 2 , MO 3 . These oxides are gene

Explain with appropriate diagrams the lever rule and Tie-line rule. Compositions of two coexisting phases of a binary system are given by tie-line rule. For overall composition

what is agar-agar inert electrolyte

Q. Explain about Gravity Separation? This is one of the simplest processes of concentration of ores. It is based on the difference in the specific gravities of the gangue and o

The electronic configuration (outermost) of Mn +2   ion (atomic number of Mn= 25  ) in its ground state is: (1) 3d 5 , 4s o                          (2) 3d 4 , 4s 1   (3

The intramolecular product tetrahydrofuran results from an internal nucleophilic substitution reaction of the alkoxide on the alkyl halide. The intermolecular product 1,4-butanedio