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. Write phosphate conditioning method for water softening with suitable chemical reactions. How it is different from soda lime method.
Ans.
Phosphate conditioning: In high pressure boilers, scale formation can be avoided by adding sodium phosphate, which reacts with hardness causing substance of water, forming non adherent and easily removable soft sludge of calcium and magnesium phosphates, which can be removed by blow down operation.
3MCl2 + 2Na3PO4 = M3 (PO4)2 + 6NaCl
Where M = Ca+2 or Mg+2
Mainly employed phosphates are:
1. Sodium dehydrogenate phosphate (acidic) Na2HPO4
2. Disodium hydrogen phosphate (weakly acidic) Na2HPO4
3. Trisodium hydrogen phosphate (alkaline) Na3PO4.
Difference between phosphate conditioning and Lime-Soda method
Phosphate conditioning
Lime-soda process
1
This is internal treatment method.
This is external treatment method.
2
It just supplements the L-S process and is not meant to replace L-S.
It has its own importance and is meant that it is necessary.
3
In this appropriate sodium phosphates are added.
Calculated amount of L and S is added.
metal A was determined to be 95%extracted into methylene chloride with dethizone at pH6, when equal volumes of aqueous and non-aqueous solvents were used. what is the distribution
Q. Show the Chemical property of matter? A chemical property explains the ability of a substance to combine with or change into one or more other substances. For instance the
parts of ac generator
Types of substitution reactions According to the type of the nature of attacking species substitution reactions are categorized into following three categories, (A) Nucleoph
Evolution of succinic acid,Physical and chemical properties of succinic acid,succinic acid uses,succinic acid derivatives,succinic acid production techniques,biotechnology of succi
Q. Halides of Boron and Aluminium? All the elements of Group 13 form binary halides. All the four trihalides of each element are known, with one exception. The compound Tl13 is
principle of qualitative analysis of funcional group
Cereals Cereals or grains are the seeds of grasses and include the many species of wheat, rice, maize or corn, jowar, barley, ragi, bajra, rye and oats. Cereals account for
caco3
assignments of hydrogen bonding
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd