Chemical Product Library / Reference

Hydrochloric Acid

Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.

Molecular structure for Hydrochloric Acid

Chemical identity

English nameHydrochloric Acid
English synonymsHydrochloric acid;Muriatic acid;HCl solution
Chinese name盐酸
Chinese synonyms氢氯酸;氯化氢溶液;盐酸
Chemical categoryAcids
CAS No.7647-01-0
EINECS No.231-595-7
Molecular formulaHCl
Molecular weight36.46
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.

Technical indicators

HCl content 31.0–33.0% (industrial grade) or according to grade; iron ≤0.005%; sulfate ≤0.005%; residue on ignition ≤0.1%

Performance characteristics

Colorless to pale yellow liquid with pungent odor, strong acid, corrosive

Application scenarios

Pickling (steel), water treatment, chemical synthesis, food processing (pH adjustment), oil well acidizing