Hydrochloric acid 32 %
Hydrochloric acid is an aqueous solution of hydrogen
chloride gas (HCl). It is a strong acid, and is a major component in stomach
acid. This compound is also used extensively in industry. Hydrochloric acid
must be handled with an appropriate safety precaution as it is a highly
corrosive liquid.
Uses:
These compounds are used for a variety of purposes,
including as reagents in the mass production of organic chemical compounds such
as vinyl chloride for PVC plastics and MDI / TDI for polyurethane. Other minor
uses include use in home cleaning, gelatin production, food additives, and skin
processing. About 20 million tonnes of HCl gas are produced annually. in the
20th century the Leblanc process was replaced by the Slovay process which did
not produce hydrochloric acid as a byproduct.