Show applications of coordination compounds, Chemistry

Assignment Help:

Q. Show Applications of coordination compounds?

Innumerable applications of coordination compounds in fields as divergent as biology,  industry. Agriculture, analytical chemistry makes it impossible to cite them all at one place. A few selected examples are given below to indicate their application to different fields. Let us first consider the role which the complexes play in gravimetric, volumetric, colorimetric analysis.

A selective precipitation of Fe(III), Al(II1) or Cr(II1) with amonia takes place keeping Ag(I), Cu(II), Ni(II), Co(II), MnCII) and Zn(I1) in solution as soluble ammine complexes.

From a mixture of Fe(III), Cu(II), Pb(II), Bi(II1) and Ag(I), only Ag(1) ion can be  precipitated as iodide, all other ions can be made to remain in solution by previous addition  of EDTA (ethylenediamine tetraacetate ion) to the solution.

The EDTA complexes of some metal ions are stable even to hydrogen sulphide. For example, in the presence of EDTA, Pb(I1) is not precipitated as sulphide from weakly acidic  solutions; Ni(II), Co(II), Mn(I1) and Zn(I1) which are normally precipitated as sulphides in  ammonical solution would also not give any precipitate.

The EDTA is one of the most important reagents now used in volumetric analysis. Since the estimation of various cations using EDTA is largely pH dependent, EDTA is also used as  masking or damasking agent in titration of mixture of cations.


Related Discussions:- Show applications of coordination compounds

Cracking - artificial process for manufacture of petrol, Cracking - Artific...

Cracking - Artificial process for manufacture of Petrol It is a method in which high boiling fractions containing higher hydrocarbons are heated strongly to decompose them into

Maximum number of electrons present in n, Maximum number of electrons prese...

Maximum number of electrons present in N  shell is: (1) 18              (2) 32        (3) 2              (4) 8 Ans: 32

Alkyl nitrites and nitro alkanes, Alkyl nitrites and nitro alkanes In t...

Alkyl nitrites and nitro alkanes In two tautomeric types Nitrous acid found. Corresponding to these two forms, nitrous acid provides two types of derivatives, that is n

Interstitial compounds, what is the interstitial relationship between carbo...

what is the interstitial relationship between carbon and boron?

Chain lengthening of aldoses or killiani-fischer synthesis, Chain Lengtheni...

Chain Lengthening of Aldoses (Killiani-Fischer synthesis) The conversion of an aldose to the next higher member includes the subsequent steps : (a) Creation of a cyanohydrin

Two chair conformations of cis-1-3-dimethylcyclohexane, The two chair confo...

The two chair conformations of cis-1,3-dimethylcyclohexane

2nd year, #questionprepare acetaldehyde from acetylene ..

#questionprepare acetaldehyde from acetylene ..

What is the main obstacle in using co2 as a reactant, From the point of vie...

From the point of view of "green chemistry" - why should reactions be carried out in CO 2 instead of using carbon monoxide or phosgene (2 reasons)? Apart from the compression of c

Explain about roasting process, Q. Explain about Roasting process? Roas...

Q. Explain about Roasting process? Roasting is the method of heating ores in the presence of excess air and involves oxidation. It is mainly applied to sulphide ores, which are

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd