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!
Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemicals like sulphur, hydrogen sulphide, benzene chloride etc. it is done by heating of raw rubber with sulphur at 100: 140 degree centigrade temperature. The added sulphur combines chemically as the double bonds of different rubber springs. Sulphur can also bring about vulcanization without affecting the double bonds in the polymer molecule, by eliminating H2S. The rate of vulcanization of rubber is quite slow and also depends upon the types and quality of rubber used. But, by using certain organic compounds called accelerators, vulcanization reaction speed up.
why do soap not work in hard water ?
If change in energy (ΔE) = 3x 10 -8 j, h= 6.64x 10 -34 j-s and c= 3x 10 8 m/s then wavelength of the light is: (1) 6.36x 10 3 Å (2) 6.36x 10 5 Å
hydrogen behave as a metal at low pressure only why
determination of oder of reaction by integral method
On a hot summer day in July, Jennifer is trying to make Popsicles. If she is using 20.6 g of fruit juice how much heat is released when the Popsicle changes from liquid to solid a
Amino acids Proteins are a class of biologically significant substance. They are important to virtually all processes in living systems. A few of acids are hormones that offer
which of the following is not a characteristic of plunck''s quantum theory of radiation? A) Radiation are associated with energy B) A body can emit less or more than a quantum of e
Q. What do you mean by Acid Value and Free Fatty Acids? Acid value is a measure of hydrolytic rancidity present in the sample of oil/fat. It reflects the state of freshness o
A 75g piece of Ag is heated to 80 degree celcius and drooped into 50g of water at 23.2 degree celcius.The final tempereture of Ag-H2O mixture is 27.6degree celcius.what is the spec
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 ocea
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