Hydrochloric Acid CAS 7647-01-0

Chemical Reactions

• Reaction with Metals: Reacts vigorously with base metals (such as zinc, iron, and magnesium) to produce metal chlorides and highly flammable hydrogen gas.
• Neutralization: Reacts rapidly with bases (such as sodium hydroxide or ammonia) to form stable salts and water, generating significant heat.
• Reaction with Carbonates: Dissolves carbonates and bicarbonates, releasing carbon dioxide gas, which is widely utilized in descaling applications.

Specifications

Applications

• Steel Pickling: Acts as the primary agent to remove rust, iron oxide scales, and impurities from steel surfaces before subsequent processing (e.g., galvanizing or extrusion).
• Chemical Synthesis: Essential in the large-scale production of organic and inorganic chlorides, including Polyvinyl Chloride (PVC), bisphenol A, and water treatment chemicals like polyaluminum chloride (PAC).
• Water Treatment: Used for strict pH control and neutralization of alkaline waste streams in industrial and municipal water treatment plants.
• Food Industry: Applied in the production of gelatin, processing of sugar, and as an acidifier in various food manufacturing processes (requires strictly Food Grade HCl).

Storage Requirements

• Environment: Store in a cool, dry, and well-ventilated area, strictly out of direct sunlight and away from heat sources.
• Containment: Must be stored in designated acid-resistant containers (e.g., rubber-lined steel, PVC, FRP, or HDPE).
• Segregation: Keep completely separated from incompatible substances, particularly strong alkalis, oxidizing agents (like bleach/sodium hypochlorite), and active metals.
• Facilities: Storage areas must feature acid-resistant flooring, proper secondary containment (bunding) to manage spills, and emergency eye-wash/shower stations.

Handling & Usage Precautions

• Personal Protective Equipment (PPE): Always wear acid-resistant gloves, a chemical splash apron, safety goggles, and a full face shield. Use a respirator in areas with poor ventilation.
• Ventilation: Use only in well-ventilated areas or under a chemical fume hood to avoid inhaling corrosive vapors.
• Dilution Rule: Always add acid to water slowly while stirring constantly. Never add water to acid, as the rapid heat generation can cause explosive boiling and severe splashing.
• Spill Response: In case of contact with skin or eyes, flush immediately with copious amounts of water for at least 15 minutes and seek immediate medical attention.

Formulations

Packaging Options

To accommodate different scale requirements, we provide flexible, acid-resistant packaging solutions:

• Small Scale: 25L / 30L High-Density Polyethylene (HDPE) drums.
• Medium Scale: 200L / 210L HDPE drums.
• Large Scale: 1000L IBC Totes.
• Bulk Deliveries: ISO Tanks and dedicated bulk tanker trucks.

Safety & Compliance Information