What happens if sulfuric acid spills on one's skin?

So let's start with the lowest concentrations: diluted sulfuric acid on your skin: pretty much harmless. After some time you will feel some itching. Rinse with water… done! cold concentrated sulfuric acid: No panic! You got lots of time! It depends on the amount of skin. If it's just a drop you can use water and wash it off. read more

Some corrosive acids may be ignitable. Examples include glacial acetic acid, formic acid, and butyric acid – use flammable material cleanup guidance. Some can ignite combustible material. Examples include oxidizing acids such as perchloric or chromic acid. Contact causes burns to skin or eyes. May be harmful if inhaled. read more

Anyways, going back to your question, once the water had removed all the acid from my hand the parts where skin had contacted the acid had turned dark blue/black. And it was very painful to touch. Within half an hour the skin had swollen considerably. read more

Spilled corrosive acid material may become a major spill due to presence of ignition sources if the acid is flammable, combustible, or oxidizing. Spilled corrosive acid material may become a major spill due to a large quantity spilled, a complex situation such as multiple chemicals spilled or involved in a spill, or if special respiratory protection is required for response. read more