can you name such chemicals?
Sulfuric acid, sodium hypochlorite, halogenated hydrocarbons, hydrofluoric acid, formic acid.
Burn
 Common agents include: sulfuric acid as found in toilet cleaners, sodium hypochlorite as found in bleach, and halogenated hydrocarbons as found in paint remover, among others. Hydrofluoric acid can cause particularly deep burns that may not become symptomatic until some time after exposure. Formic acid may cause the breakdown of significant numbers of red blood cells.
most common cause of death in burn patients Infections being the most common  pneumonia, cellulitis, urinary tract infections and respiratory failure. what is burn? A burn is a type of injury to skin, or other tissues, caused by heat, cold, electricity, chemicals, friction, or radiation. what are the indications? Severe burns may indicate discomfort or complain of feeling pressure rather than pain, there are superficial burns, full-thickness burns. how is it caused by chemical? Chemicals like strong base or a strong acid can cause deep burns.
wiki:11722538
Burn [SEP] Chemical
Chemicals cause from 2 to 11% of all burns and contribute to as many as 30% of burn-related deaths. Chemical burns can be caused by over 25,000 substances, most of which are either a strong base (55%) or a strong acid (26%). Most chemical burn deaths are secondary to ingestion. Common agents include: sulfuric acid as found in toilet cleaners, sodium hypochlorite as found in bleach, and halogenated hydrocarbons as found in paint remover, among others. Hydrofluoric acid can cause particularly deep burns that may not become symptomatic until some time after exposure. Formic acid may cause the breakdown of significant numbers of red blood cells.