pickling (cleaning)iron
rayon
battery acid
impurities
USES OF SULPHURIC ACID
Sulphuric acid is one of the most important industrial chemicals. More of it is made
each year than is made of any other manufactured chemical. It has widely varied uses and
plays some part in the production of nearly all manufactured goods.
The major use of
sulphuric acid is in the production of удобрений, e.g., superphosphate of lime and ammonium
sulfate. It is widely used in the manufacture of chemicals, e.g., in
making hydrochloric acid, nitric acid, sulfate salts, synthetic
detergents, dyes and pigments, explosives, and drugs. It is used in
очистке
нефти to wash примеси out of gasoline and other
refinery products.
Sulphuric acid
is used in processing metals, e.g., in
травлении
iron and steel before plating them with tin or zinc.
Вискоза is made with sulfuric acid. It serves as the electrolyte in
the lead-acid storage battery commonly used in motor vehicles
(acid for this use, containing about 33% H
2
SO
4
and with specific
gravity about 1.25, is often called аккумуляторной
кислотой).
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