Editing Smoke screen (section)

===Chlorosulfuric acid===
[[Chlorosulfuric acid]] (CSA) is a heavy, strongly acidic liquid. When dispensed in air, it readily absorbs moisture and forms dense white fog of [[hydrochloric acid]] and [[sulfuric acid]]. In moderate concentrations it is highly irritating to eyes, nose, and skin.

When chlorosulfuric acid comes in contact with water, a strong [[exothermic]] reaction scatters the corrosive mixture in all directions. CSA is highly corrosive, so careful handling is required.

Low concentrations cause prickling sensations on the skin, but high concentrations or prolonged exposure to field concentrations can cause severe irritation of the eyes, skin, and respiratory tract, and mild cough and moderate [[contact dermatitis]] can result. Liquid CSA causes [[acid burn]]s of skin and exposure of eyes can lead to severe eye damage.

Affected body parts should be washed with water and then with [[sodium bicarbonate]] solution. The burns are then treated like thermal burns. The skin burns heal readily, while cornea burns can result in residual scarring.

Respirators are required for any concentrations sufficient to cause any coughing, irritation of the eyes or prickling of the skin.