Neutralisation as a safety procedure (1 Viewer)

[serge]

HSC 2003

"Discuss factors that must be considered when using neutralisation reactions to safely minimise damage in chemical spills"

 

[Dreamerish*~]

Neutralisation is an exothermic reaction. Therefore with chemical spills on skin, acid or base should not be poured directly onto skin as they will release heat and cause burns. Instead, rinse immediately under cold tap-water.

 

[serge]

Neutralisation is an exothermic reaction. Therefore with chemical spills on skin, acid or base should not be poured directly onto skin as they will release heat and cause burns. Instead, rinse immediately under cold tap-water.

what about stuff on the floor does that matter?

 

[annie_sinc]

if its on the floor, use a solid, such as in a powdered form, so it soaks it up, instead of using liquids which would spread it even more.

and maybe u could also talk about the use of substances containing an amphiprotic ion..?

 

[Haku]

think u gotta say that it should be a weak acid or base. this reduce the heat of neutralisation. in fine powder form also alow it to neutralise a bigger area and reduce spreading. a example is NaHCO3.

not sure about the amphiprotic substances

 

[Abtari]

Neutralisation is an exothermic reaction. Therefore with chemical spills on skin, acid or base should not be poured directly onto skin as they will release heat and cause burns. Instead, rinse immediately under cold tap-water.

rofl. the thought of spilling an acid or base on ur skin, and then adding some other base or acid amuses me...

oh yeah, and as for the query, u could mention using an amphiprotic powder, such as sodium bicarbonate, that is cheap, viable and can be used equally effectively for both acid and base spills

 

[rnitya_25]

think u gotta say that it should be a weak acid or base. this reduce the heat of neutralisation. in fine powder form also alow it to neutralise a bigger area and reduce spreading. a example is NaHCO3.

not sure about the amphiprotic substances

thats very true and also when you're talking about what's most suitable for situations like a spill of an acid, you would use a weak base, such as Na₂CO₃ or NaHCO₃. and the most suitable form would be a powder because it will stop it from spreading further, easy to store, and excess used won't do any harm to anyone.

 

[rnitya_25]

HSC 2003

"Discuss factors that must be considered when using neutralisation reactions to safely minimise damage in chemical spills"

hehe and it was in this year's trial for our school.....sucked because i totally forgot about it...

 

[serge]

Neutralisation is an exothermic reaction. Therefore with chemical spills on skin, acid or base should not be poured directly onto skin as they will release heat and cause burns. Instead, rinse immediately under cold tap-water.

i think the acid itself will feel like its burning than the heat of neutralisation,
context suggests the change will be very small a few degrees perhaps