Describe about halide minerals, Chemistry

Assignment Help:

Q. Describe about Halide Minerals?

Highly electropositive alkali and alkaline earth metals tend to form halide salts, which being soluble in water are washed away into the oceans due to leaching of the top soil. However, many deposits of halide minerals are also found under the soil. Some important halide minerals are rock salt (NaCl), sylvine (KCI), horn silver (AgCI), carnallite (KCl.MgC12.6H20), fluorspar (CaF2) and cryolite (AlF3.3NaF).

Ores as mined, generally contain variable amounts of unwanted minerals such as silica. clay, granite, etc. These unwanted materials are called gangue. The proportion of the desired metal in the ore must be sufficiently high so that the extraction of metal is chemically feasible and economically competitive. Ores of very low concentration are used only if they can be processed easily and inexpensively or if the metal produced is scarce. The lower limit of the percentage of the metal in mineral below which extraction becomes unprofitable depends on the value of the metal. Thus, ores containing 1 % tin are frequently worked upon to obtain tin and ores containing 5% tin are considered rich deposits of tin. If gold is present to the extent of even 0.0015%, it is considered worth extraction: On the other hand, iron and aluminium will not be worth extracting unless they contain 30% or more of the metal.


Related Discussions:- Describe about halide minerals

Determine rate of flow, Containers in Illustrations C and D are identical ...

Containers in Illustrations C and D are identical Each container is 3.25'w x 3.25'w x 8.4'l Total capacity of each container 88.725 cubic feet Each container is filled wit

Name the most basic amino acid, Name the most basic amino acid a) The m...

Name the most basic amino acid a) The most basic amino acid is arginine.  It has the highest isoelectric point. b) Glycine is not chiral and therefore it cannot be optically

Packing of atoms, how can i make an assignment on this topic?

how can i make an assignment on this topic?

Benzoic acid, benzoic acid from benzene.i can''t see it clearly

benzoic acid from benzene.i can''t see it clearly

P block, why ionisation energy of aluminium is greater then Ga?

why ionisation energy of aluminium is greater then Ga?

Isolation of compounds from plants, Can I get a compound from crude extract...

Can I get a compound from crude extract of plant by NMR and GC-MS?

Iupac, Chart of IUPAC NOMENCLATURE

Chart of IUPAC NOMENCLATURE

Medicine topic, please read instruction carefully do not accept job if you ...

please read instruction carefully do not accept job if you are not able to do it i only accept high quality work

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