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!
Nitrite rubbers (Gr-A or Buna-N or NBR): Nitrite rubber is prepared by the copolymerization of butadiene and acrylonitrile in emulsion systems.
Properties:
1. These rubbers have low swelling, low solubility, good tensile strength and abrasion resistance even after immersion in gasoline and oils.
2. They are less resistant to alkalis due to the presence of cyno groups.
3. They have excellent resistance to heat oils, chemicals, aging (sunlight).
4. As the acrylonitrile percentage is increased in nitrile rubber, its resistance to acids salts, oils, solvents etc. increases.
5. Vulcanized nitrile rubber is more resistant to heat and sunlight than natural rubber and it may be exposed to high temperature.
Uses: nitrile rubber is used for making:
1. Oil resistant foam
2. Conveyor belts
3. Lining of hose
4. Gas kits
5. Printing rollers
6. Automobile parts and high altitude aircraft components
7. House and
8. Adhesives.
9. Creamery equipment etc.
How many atomic number does have Ne Because Ne has atomic number = 10 and F has atomic number = 9, the neon species that has 9 electrons is Ne+
Calculate the solubility product of AgCl. Ag 5- and Ag 10- nanoclusters having of metallic silver but nevertheless have standard potentials dissimilar from the potential of
GEOCHEMISTRY The chemical processes taking place in the crust are especially important as they have build ores, concentrated mineral deposits that are exploited industrially
what is benzene hexa chloride and its uses?
what happens to the reaction rate when the concentration changes
giving correct formulas give the reactantsand products in the formation of poly2 butane
Q. Illustrate the structure of Alkanes? Ans. Alkanes have the general formula C n H 2n+2 . This means that for every n atoms of carbon, there are 2n + 2 atoms of hydrogen.
formula of lactic acid
Draw the structure of anisole and phenetole
Reaction involving cleavage of with removal of 'H' as proton Alcohols are stronger acids as compared to terminal acetylene but are not acidic enough to react along with aqueous
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