It is toxic by inhalation and a strong irritant to eyes and skin. Hydrochloric Acid is a solution of hydrogen chloride in water, and is a colorless or slightly yellow fuming pungent liquid. It is used for boiler scale removal, a chemical intermediate, and industrial acidizing. Hydrochloric acid is toxic by ingestion and inhalation and a strong irritant to eyes and skin. It is one of the largest commodity chemicals in the world, used mainly as a feedstock to make other chemicals.
Methanol is flammable, and dangerous fire risk, and toxic by ingestion.
It is highly soluble and slightly persistent in water with a half-life of between 2 to 20 days. It is used as a solvent, degreasing and cleaning fluid, in plastic processing and paint removers. A narcotic, it could cause unconsciousness and even death if inhaled in high concentrations. It is used as a solvent in paints, varnishes, and nitrocellulose lacquers, in extraction processes in organic synthesis, and as a denaturant for alcohol. It has a slight acute and chronic toxicity to aquatic life.