Hydrochloric Acid 32%

CAS Number: 7647-01-0
HCl
Purity: 32% w/w

Hydrochloric Acid 32% is a highly corrosive, strong mineral acid widely used in various industrial processes due to its efficacy in pH adjustment, metal cleaning, and chemical synthesis.

Description

Hydrochloric Acid (HCl), with a concentration of 32%, is a colorless to slightly yellow, fuming liquid with a pungent odor. It is a highly corrosive, strong monoprotic mineral acid that completely dissociates in aqueous solutions. Chemically, it consists of hydrogen and chlorine atoms, readily forming hydronium ions (H₃O⁺) and chloride ions (Cl⁻) when dissolved in water, which accounts for its strong acidic properties. Its high reactivity makes it indispensable in numerous industrial applications, ranging from the production of organic and inorganic compounds to surface treatment of metals. The 32% concentration is a common commercial strength, offering a balance between chemical reactivity and safe handling considerations. Due to its corrosive nature, careful handling and appropriate protective measures are paramount to prevent exposure and ensure workplace safety. It is miscible with water in all proportions and is characterized by its strong acidic pH, typically below 1. It is a key reagent in acid-base titrations and is central to many chemical reactions where a strong acid is required.

Applications

Hydrochloric acid is extensively utilized across various industries. In metallurgy, it is vital for pickling steel to remove rust and scale prior to further processing, and for etching and cleaning circuit boards. The chemical industry employs it in the production of organic compounds like vinyl chloride and dichloroethane, and inorganic compounds such as ferric chloride and aluminum chloride. It serves as a crucial pH regulator in water treatment, and in the food industry for food additives and processing. Other significant applications include oil well acidizing, ore processing, leather processing, and in the manufacturing of fertilizers and dyes. Its versatility makes it a fundamental chemical commodity.

Storage & Handling

Store in corrosive-resistant containers (e.g., PVC, fiberglass-reinforced plastic) in a cool, dry, well-ventilated area, away from incompatible materials. Ensure containers are tightly sealed. Handle with appropriate personal protective equipment, including gloves, eye protection, and protective clothing, to prevent skin and eye contact and inhalation of fumes.

Danger

  • H314 Causes severe skin burns

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