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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.
How viscosity and surface tension help in ascertaining criteria of purity for organic compounds
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
Voltammetry: You learnt about voltammetry. Several electrodes, especially the general microelectrodes used in voltammetry were discussed. Then we discussed the common voltamme
Desiccants (drying agents) can often be regenerated by heating. A desiccant that is commonly regenerated is CaSO 4 ?2H 2 O:
how to calculate equivalent weight of phenol
what is solution
write the structures of the major product (saytzeff elimination) when the following alcohols are dehydrated with hot,concentrated sulphuric acid. 1. 3-methyl-2-butanol 2. 2-pentano
WHAT IS THE IUPAC NAME OF K4[FeO4]
Why is geometrical isomers not possible in tetrahedral complexes having two different types of unidentate ligands? Ans) Tetrahedral complexes do not show geometrical isomerism be
Mesh size of silica gel for prep tlc
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