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Explain polymerisation vinyl chloride and its applications.
PVC and its applications - It is acquired from polymerisation of vinyl chloride in the presence of a catalyst as peroxides at about 500C. The properties are as mechanical strength, flexibility, porosity, electrical and moisture absorption properties can be changed through adding certain materials. PVC has fine mechanical and electrical properties. This is hard and brittle. It resists flame, most solvents and sunlight. It is non-hygroscopic. PVC is widely used as insulation and jacketing material for cables and wires. PVC films, sheets and tapes are used as insulation for conduit pipes and dry batteries.
Objectives After doing this exercise you should be able to: 1. Describe the features of the preparation room of the lab you have visited, 2. Examine and evaluate a prepar
What is phosphate conditioning in water softening?
equivalant weight ofmg(hco3)2
DISTILLATION
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Finish the molecular species balance problem I started in class, i.e. find the composition of the product gas.
given the displacement vectors A(3^i-4^j+4^k)m and B(2^i+3^j-7k)m,find the magnitudes of the vectors (a)C=A+B and (b)D=2A-B,also expressing each in terms of its rectangular compone
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The over all diffinition of stripping
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