Sulfuric acid question

[bswartzwelder]

I was looking into purchasing some sulfuric acid for an electrolytic cell I'll be building. HV Chemical list it at 50% which I feel is too weak. They also list a product which is 93% and on where the assay is between 95% and 98%. Which do you guys reccommend? Is the 93% strong enough, or should I go the 95% to 98% route? Thanks in advance.

 

[nickvc]

Personally I'd buy the 93% as it saves the need to evaporate the weaker acid down.
Be aware concentrated sulphuric acid is very nasty and water hungry, wear face and arm protection and always cover the acid after use as it will draw water from the atmosphere, imagine what it will do to human skin and tissue !