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WATER TREATMENT GRADE

Hydrochloric Acid HCL

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Hydrochloric Acid HCL is a highly corrosive, strong mineral acid consisting of hydrogen chloride gas dissolved in water to a concentration of approximately 33% by weight. It appears as a clear, colorless to slightly yellow liquid with a sharp, pungent odor. HCl 33% is widely used in industrial, chemical, and laboratory applications due to its strong acidic properties, high reactivity, and versatility. It plays a crucial role in pH control, metal processing, chemical synthesis, and cleaning processes across numerous sectors.

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Categories: Soil Conditioners, Acidulants, Builders, Corrosion Inhibitors, Leaching Agents, pH Adjusters, pH Modifiers, Solvents (Cleaning), Solvents(pharmaceutical) Tags: Chemical Solution, HCL 33%, Hydrochloric Acid, Industrial Acid, Industrial Cleaning, pH Adjustment, Water treatment chemicals

Description

Table of Contents

Hydrochloric Acid HCL

Primary Uses

Chemical Industry

Used as a key reagent in the production of vinyl chloride monomer (VCM) for PVC manufacturing.
Serves as a catalyst and reactant in numerous organic and inorganic synthesis processes.
Employed for pH adjustment and acidification in chemical production.

Metal Processing and Pickling

Widely used for metal pickling and cleaning to remove rust, scale, and oxides from steel and iron surfaces before further processing or coating.
Essential in ore processing and refining, especially for dissolving metal ores and recovering metals such as zinc and manganese.

Water Treatment

Used to neutralize alkaline water in municipal and industrial water treatment plants.
Controls pH levels in swimming pools and cooling towers to prevent scale formation and microbial growth.

Food Industry

Utilized as a food-grade acidulant and processing aid for adjusting pH in the production of gelatin, ascorbic acid, and corn syrup.
Used in cleaning and sanitization of food processing equipment under strict regulatory compliance.

Oil and Gas Industry

Employed in acidizing operations to stimulate oil and gas wells by dissolving carbonate formations and enhancing permeability.

Household and Industrial Cleaning

Active ingredient in many cleaning products for descaling, lime removal, and surface preparation.

Secondary Uses

Pharmaceutical Industry

Used in the synthesis of active pharmaceutical ingredients (APIs) and intermediates.

Laboratory Applications

Used as a standard reagent for acid-base titrations and pH calibration.

Leather Industry

Employed in leather processing for pH control and tanning operations.

KEY ATTRIBUTES

Basic Identification Attributes

Chemical Name (IUPAC): Hydrochloric Acid
Common/Trade Name: Hydrochloric Acid 33%
CAS Number: 7647-01-0
HS Code: 2806.10.00
Molecular Formula: HCl (aqueous solution)
Synonyms: Muriatic Acid; Hydrogen Chloride (aqueous)

Physical & Chemical Properties

Physical State: Liquid
Color & Odor: Clear, colorless to pale yellow; pungent, irritating odor
Boiling Point: Approx. 110°C (for 33% solution)
Density: ~1.16 g/cm³ at 20°C
Solubility: Completely miscible with water
pH: Strongly acidic (typically <1 for 33% solution)
Stability: Stable under normal storage; reacts violently with bases and oxidizers

Safety & Hazard Attributes

GHS Classification: Skin Corrosion 1B, Eye Damage 1, Acute Toxicity (Oral, Inhalation)
Toxicity: Corrosive and highly irritant to skin, eyes, and respiratory tract
Exposure Limits: OSHA PEL 5 ppm (7 mg/m³) ceiling limit

Storage & Handling Attributes

Container Type: Corrosion-resistant containers such as HDPE or glass-lined steel drums
Storage Conditions: Store in cool, dry, well-ventilated area away from incompatible materials like bases and oxidizers
Shelf Life: Indefinite if stored properly in sealed containers
Handling Notes: Use corrosion-resistant equipment and PPE; avoid inhalation of vapors

Regulatory & Compliance Attributes

Approved for use in food processing as a processing aid under strict limits (food-grade HCl)
Complies with FDA, REACH, and other global chemical safety regulations
Subject to transportation regulations for corrosive substances

Environmental & Health Impact

Biodegradability: Not applicable; neutralized quickly in environment
Ecotoxicity: Harmful to aquatic life at high concentrations
Bioaccumulation: Not expected
Carcinogenicity/Mutagenicity: Not classified as carcinogenic

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Acid-resistant gloves, face shield or goggles, acid-resistant apron, respirator if vapor exposure possible
Handling Guidelines: Use in well-ventilated areas or fume hoods; avoid direct contact and inhalation
Hygiene Practices: Wash hands thoroughly after use; do not eat, drink, or smoke while handling

First Aid Measures

Inhalation: Move to fresh air immediately; provide artificial respiration if needed; seek medical attention promptly
Skin Contact: Rinse immediately with copious water for at least 15 minutes; remove contaminated clothing; seek urgent medical care
Eye Contact: Rinse eyes thoroughly with water for 15-20 minutes; seek immediate ophthalmologic consultation
Ingestion: Do NOT induce vomiting; rinse mouth; seek emergency medical help immediately

Firefighting Measures

Fire Hazards: Non-flammable but can release toxic hydrogen chloride gas when heated or reacting with metals
Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ for surrounding fires
Special Precautions: Firefighters should wear self-contained breathing apparatus and acid-resistant clothing
Combustion Products: Hydrogen chloride gas and corrosive fumes