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Personal sensitivity : There are other dangers from substances which are not so common. e.g. mutagens , but one aspect we have not mentioned involves you. The eyes, lungs and skin of different people can vary greatly in their sensitivity to chemicals. Also certain substances e.g., detergents, epoxy resins, disinfectants, dyes, nickel and chromium salts, are more likely than others to cause dermatitis and skin trouble. Most of these disorders can be overcome by simple hygiene, e.g. the use of gloves, etc. The situation is complicated by the fact that people may suddenly become sensitised and react to very minute amounts. A common example is a bee keeper who is used to stings may suddenly have to give up bee keeping because he has been sensitised which means that he has become allergic to bee sting and the next sting might kill him.
Explain concept of Salting out Salting out: Proteins in aqueous medium can be precipitated by qdding, trichloroacetic acid (TCA) or perchloric acid (PCA). Salts of hea
Q.What are the two forms of oxygen found in the atmosphere? The two forms of oxygen found in the atmosphere are: (i) Diatomic molecular form with chemical formula O 2 . (i
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Fire Blankets : We have already discussed the use of fire blankets, but it is worth noting that fire blankets are now made of glass fibre instead of asbestos, and that they are u
I can''t identify which tree this is
A physician notes that in a patient there is impaired vibration and position sense, astereognosis, and ataxia. The physician noted loss of all sensations in some areas of the patie
Holding water in a sieve Pour some oil over the wire mesh of a kitchen sieve and shake out the overload so that the holes are open. Cautiously pour water into the sieve from a
Poisons : It is essential that all dangerous substances, such as cyanides, are always kept under strict control. Steps to ensure such control are as follows: i) All substances
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