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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.
A mixture of calcium sulfate (CaSO4) and calcium uranate (CaUO4) contains 10% sulfur by mass. What is the mass percentage of uranium in the mixture?
#explain the process of x-ray production..
Prior preparation for fixing and staining animal tissue and/or plant tissues: Find out what procedure the lab technician follows for preparing fixative (either plant andor animal)
wet chemical synthisis method
Objectives After you have done this exercise, you should be able to: 1. Prepare a comparative chart of quotations 2. fill up the quotations form 3. process a bill for
PROCEDURE : Visit any lab (physics, chemistry or biology) of your study centre or any other you can get access to and note its features. To guide you through we have listed below
Objectives After performing this exercise you should be able to: 1. describe the design and organisation of a lab store, 2. suggest modifications in the store design,
The importance of oil acid and base titration in the saponification value of oil
The amount of iron and manganese in an alloy can be determined by precipitating the metals with 8-hydroxyquinoline, C9H7NO. After weighing the mixed precipitate, the precipitate is
what are the conversion rates of the different components in hemicellulose to simpler sugars(e.g xylan to xylose)
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