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Dissolution and dilution : Water soluble1 miscible chemical wastes which are harmless in high dilution may be run into the drainage with plenty of water. It may be noted that alkali wastes also come under this category of treatment.
Examples: Acetone, methanol, ethanol, dioxan, acetic acid, ethyl methyl ketone, ammonia (solution), hydrogen peroxide, oxalic acid, dimethyl sulphoxide, hydroquinone , p-benzoquinone, ammonium sulphide, potassium hydroxide and sodium hydroxide.
principle of EDTA..
Frost in the classroom Frost can be made in the classroom by using a tall metal container like as a tin can. Pack the can with exchange layers of ice and salt, using about doub
The Ptolemaic System: The theoretical n'mdel of the universe given by the Greeks had a stationary Earth at its centre, around which the Sun, the Moon and the planets moved in c
least atomic volume
b) discuss briefly the scientific and technical achievements of the bronze age
1. The solid wastes from a summer camp with 100 children and a staff of 25 are to be collected once per week. If bottles and cans (representing 20% of the weight) are removed, pape
Hormonal system: Most of us are not even aware that another system works constantly, along with the nervous system and the muscles, to direct our bodily functions. The system
Normally,on flat surfaces,heavier objects don''t travel as far as lighter objects when pushed with the same force.how would I explain why its different?
Objectives After doing this exercise, you should be able to: 1. Prepare a list of contact phone numbers required for handling laboratory accidents, state the contents of fir
Media and Educational Environment: Some recent technological developments in media, have opened up new horizons. Besides, increasing use of media, to support and expand educa
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