Chlorosulfuric acid, also known as chlorosulfonic acid, is an colorless and mobile liquid with exceptional reactivity. It exhibits strong fuming properties when exposed to air and has found applications as a smoke-generating agent in military operations.

Hydrazine is an inorganic compound with the formula N2H4. It is a highly toxic colorless liquid with a strong ammonia-like odor.

Solid hypochlorite is a soft, white, dry powder. It is almost odorless or smell more or less strongly of chlorine or hydrochloric acid because of decomposition during storage.

Bromine is a dense, dark red, fuming, highly corrosive, and lacrimatory liquid. Its strong pungent odor is detectable at 1 ppm by volume in air.

Calcium chloride, CaCl2, is a white, odorless, extremely water soluble salt that forms hydrates. It is found in small quantities, along with other salts, in seawater and in many mineral springs.

Sodium hydroxide is a strong base with the formula NaOH. In its pure form it is a white crystalline solid, but it dissolves easily in water to form a colorless solution.