What are the precautions should be taken while diluting of acid
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Always pour acid in water, never water into acid to prevent splashing.
If acid spills, take safety measures.
New acid solution should be poured into a reagent bottle with a label and closed.
It depends on the acid.
With concentrated hydrochloric or nitric acid the only precautions to be taken are to wear appropriate protective clothing such as gloves, acid resistant apron, safety goggles or face shield, and perform the mixing in a fume hood.
However with concentrated sulphuric acid, in addition to the above precautions, the acid should also be added very slowly to a larger volume of water with constant stirring. This is because the reaction of concentrated sulphuric acid with water liberates a large amount of heat. So, if the water is added to acid, it could easily cause local boiling of the water, which initially floats on the acid due to its lower density. This is very likely to cause hot water and acid to splatter everywhere.
If acid spills, take safety measures.
New acid solution should be poured into a reagent bottle with a label and closed.
It depends on the acid.
With concentrated hydrochloric or nitric acid the only precautions to be taken are to wear appropriate protective clothing such as gloves, acid resistant apron, safety goggles or face shield, and perform the mixing in a fume hood.
However with concentrated sulphuric acid, in addition to the above precautions, the acid should also be added very slowly to a larger volume of water with constant stirring. This is because the reaction of concentrated sulphuric acid with water liberates a large amount of heat. So, if the water is added to acid, it could easily cause local boiling of the water, which initially floats on the acid due to its lower density. This is very likely to cause hot water and acid to splatter everywhere.
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