Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain Extraction of Sulphur?
The most important method for the extraction of sulphur from native deposits is the frasc process developed by Herman frach in 1891. It consists of boring a hole from the ground surface to the sulphur bearing calcite deposit and lowering three concentric pies to the ore bed superheated steam 438K is forced down the outer pipe into the ore bed where it melts the sulphur. Compressed hot air is pumped down through the innermost pipe when a frothy mixture of molten sulphur water and air is forced to them to the surface through the middle pipe. As it comes out from the well, sulphur has a purity of 99.5-99. 9% and contains virtually no As. Se or Te.
Sulphur is also obtained as a by product in the production of coal gas and in refining crude oil and natural gas. Biotechnological techniques have now been developed for winning sulphur from sulphide ores.
Selenium and tellurium are obtained in concentrated form from anode mud obtained in the electrdyticrefining of copper. Polonium is made artificially by neutron irradiation of bismuth in a nuclear reactor.
why is the f-block grouped in the way it is
Water treatment system among other process will contain the following and you are required to design only one of them and demonstrate strong understanding of the principles involv
Most polar solvents have Lewis base or donor properties resulting from lone-pair electrons. Good donor solvents inbuilt water, pyridine and ammonia, and are efficient at solvating
Why does calcium sulphate form scales in high pressure boilers
Angular functions: 'shapes' The mathematical functions for atomic orbitals may be described as a product of two factors: the radial wavefunction defines the behavior of th
The phosphate of a metal has the formula MHPO 4. The formula of its chloride would be: (1) MCl (2) MCl 2 (
Q. How to Replace Metals from their Salts: Ans. If zinc is added to a solution of copper (II) sulfate, it dissolves. A reddish-brown deposit of metallic copper appears,
covalent bond
Polymer Polymers are compound of extremely high molecular masses made by the combination of a large number of simple molecules. The simple molecules that combine to offer po
Equivalent weigjt of potash alum
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd