Carbonization of the skin from sulfuric acid burns is usually impossible to recover from. Sulfuric acid is a strong acid, with strong corrosive, dehydrating, absorbent, difficult to volatilize, when sulfuric acid burns the skin, the local rapid dehydration, carbonization, skin color can quickly become white, and then gradually deepen to black, subcutaneous tissue is basically completely necrotic. When carbonization occurs, it indicates that the burned part of the skin is basically completely necrotic, where irreversible damage to the cells occurs, then the possibility of recovery is relatively small, generally can not be restored. Sulfuric acid burns, you need to use a lot of water to rinse the contact area to dilute the sulfuric acid, absorb heat, if the contact area is large, you should remove all clothing and use a lot of water to rinse the whole body, and then go to the hospital in a timely manner.