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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.
Introduction : You will recall previous study of this course about the various duties and activities of a lab staff that facilitate management of the laboratory in an efficient ma
One cubic metre of wet soil weighs 19.80 kN. If the exact gravity of soil particles is 2.70 and water content is 11%, Determine the void ratio, dry density and degree of saturat
Find a Rate Expression for the Reaction The saponification of the ester propargyl acetate, A, with base, B, was studied by Myers, Collett, and Lazzell using a conductivity tech
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)
Health is wealth
I want some lecture notes on properties of pure substances, Ideal gas laws
structure of EDTA and estimation of hardness of water by Edta method
Number of rooms, their size and allocation: Count the number of rooms including ancillaries (if any). Estimate their size and note the allocation of the main lab, preparatory room
Zeolites are used to adsorb a wide range of solutes from vapour and gas streams. What is it about their structure that makes them suitable for selective adsorption? What isotherm(s
Explain covalent bond A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons among atoms, or among atoms and other covalent
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