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Hydrofluoric Acid
Original price was: $ 7.90.$ 7.74Current price is: $ 7.74.
Hydrofluoric Acid is a highly corrosive aqueous solution of hydrogen fluoride gas dissolved in water. It is a colorless to pale yellow fuming liquid with a strong pungent odor. Unlike other mineral acids, HF is a weak acid chemically but uniquely reactive due to its ability to dissolve silica and glass, and penetrate tissues deeply. This makes it invaluable in numerous industrial, laboratory, and specialized applications but also highly hazardous.
Hydrofluoric Acid
Primary Uses
- Industrial and Manufacturing Applications
- Glass and Quartz Etching: HF is extensively used for precise etching, frosting, and engraving on glass, quartz, and silica-based materials for decorative, optical, and industrial purposes.
- Metal Cleaning and Pickling: Efficient at removing oxides, rust, and scales from stainless steel, aluminum, and other metals prior to plating or fabrication.
- Chemical Synthesis: Key reagent and catalyst in the manufacture of fluorinated compounds, such as hydrofluorocarbons (HFCs), fluoropolymers (e.g., PTFE/Teflon), refrigerants, and pharmaceuticals.
- Petroleum Refining: Used as a catalyst in the alkylation process to produce high-octane gasoline components, improving fuel quality.
- Silicon and Semiconductor Processing: Critical in microelectronics for etching silicon wafers and cleaning delicate components in chip manufacturing.
- Laboratory and Analytical Uses
- Sample Preparation: For elemental analysis, HF digests silicate and mineral samples by dissolving silica matrices to allow metal analysis.
- Surface Treatment: Used to clean and prepare surfaces of ceramics and electronic materials.
- Environmental and Waste Treatment
- Occasionally employed in highly controlled settings to neutralize or break down fluorinated wastes or residues.
Secondary Uses
- Dental and Medical Applications
- Dental Etching: Used at much lower concentrations to etch tooth enamel during restorative dentistry procedures, enhancing bonding of fillings and sealants.
- Art and Craft
- Used by artists and glassmakers to create frost patterns and textures on glass objects and artworks.
- Specialized Industrial Cleaning
- Cleaning of scale and deposits in industrial equipment, pipelines, and reactors where silica or metal oxides accumulate.
- Electronics and Optics
- Etching and cleaning optical fibers, lenses, and precision glass instruments to improve clarity and performance.
- Research and Development
- Used in chemical research for synthesis and as a reagent for fluoride ion introduction in complex organic reactions.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Hydrogen fluoride (aqueous)
- Common/Trade Name: Hydrofluoric Acid 50%
- CAS Number: 7664-39-3
- HS Code: 2811.12.00
- Molecular Formula: HF (aqueous)
- Synonyms: Fluoric acid; Hydrogen fluoride solution
2. Physical & Chemical Properties
- Physical State: Liquid
- Color & Odor: Colorless to pale yellow; sharp, pungent odor
- Boiling Point: Approx. 108 °C at 50% concentration
- Density: ~1.15 g/cm³
- Solubility: Miscible with water
- pH: <1 (strongly acidic)
- Corrosivity: Highly corrosive to skin, glass, metals, and tissues
3. Safety & Hazard Attributes
- GHS Classification:
- Skin corrosion/irritation: Category 1A
- Serious eye damage/irritation: Category 1
- Specific target organ toxicity (single exposure): Category 3 (respiratory irritation)
- Toxicity: Extremely toxic via skin contact, inhalation, and ingestion
- Exposure Limits: OSHA PEL 3 ppm; ACGIH TLV 0.5 ppm (ceiling)
4. Storage & Handling Attributes
- Container Type: Polyethylene, Teflon, or HF-resistant plastic containers only
- Storage Conditions: Cool, dry, ventilated area, away from bases, metals, and oxidizers
- Shelf Life: Stable up to 24 months if stored properly
- Handling Notes: Extreme care with full PPE and emergency protocols
5. Regulatory & Compliance Attributes
- Regulated as hazardous substance by OSHA, EPA, REACH, and transport authorities
- Labeling and documentation required for transport and storage
6. Environmental & Health Impact
- Not biodegradable; environmentally hazardous to aquatic organisms
- Not bioaccumulative but highly toxic in environmental exposures
- No known carcinogenicity but severe acute toxicity and systemic effects
Safety Handling Precautions
- PPE: Acid-resistant gloves, full-face shield, protective apron, respirator with acid gas cartridges
- Handling: Use in fume hoods; avoid skin contact and inhalation; calcium gluconate gel must be readily available for emergency treatment
- Hygiene: No eating or smoking; thorough washing after use
First Aid Measures
- Inhalation: Move to fresh air immediately; provide oxygen if necessary; seek urgent medical attention
- Skin Contact: Rinse with water continuously for 15+ minutes; apply calcium gluconate gel; urgent medical care required
- Eye Contact: Flush eyes with water for at least 15 minutes; immediate medical attention essential
- Ingestion: Do NOT induce vomiting; rinse mouth; seek emergency care immediately
Firefighting Measures
- Fire Hazards: Not flammable but reacts with metals releasing flammable hydrogen gas
- Extinguishing Media: Water spray preferred; foam, dry chemical, CO₂ acceptable for surrounding fire
- Precautions: Firefighters require SCBA and acid-resistant gear
- Decomposition Products: Toxic fluorine-containing gases and hydrogen gas
Related products
Chromic Acid
Chromic Acid is a powerful oxidizing agent, typically available as a bright orange-red crystalline solid or concentrated solution containing chromium trioxide (CrO₃) dissolved in sulfuric acid. It is a highly corrosive and strong acid used predominantly in industrial applications such as metal finishing, cleaning, and surface treatment. Chromic acid is valued for its excellent oxidative and cleaning properties, particularly in chromium plating, anodizing, and etching processes. Due to its toxicity and environmental hazards, its handling and disposal are strictly regulated. It plays a crucial role in chemical synthesis, laboratories, and manufacturing.
Formic Acid
Formic Acid (methanoic acid) is the simplest carboxylic acid, typically supplied as an 85% aqueous solution. It is a colorless liquid with a pungent, penetrating odor and strong acidic properties. Formic Acid naturally occurs in insect stings and plant secretions and is widely used in chemical synthesis, agriculture, textile, leather, and rubber industries. The 85% solution balances potency and safe handling for industrial applications. It serves as a preservative, antibacterial agent, and intermediate chemical in numerous manufacturing processes.
Hexane
Hexane is a colorless, volatile, and highly flammable hydrocarbon solvent belonging to the alkane series with the chemical formula C6H14. It is a mixture of isomers, primarily n-hexane, with a faint gasoline-like odor. Hexane is widely used as an industrial solvent due to its non-polar characteristics, low boiling point, and excellent ability to dissolve oils, fats, waxes, and resins. It is commonly obtained from petroleum refining and is a key component in formulations requiring rapid evaporation and strong solvency. Hexane finds broad applications in chemical synthesis, extraction, cleaning, and manufacturing sectors.
Methanol
Methanol, also known as methyl alcohol or wood alcohol, is a clear, colorless, volatile, and flammable liquid with a distinct alcoholic odor. It is the simplest alcohol and is widely used as an industrial solvent, antifreeze, fuel, and chemical feedstock. Methanol is highly miscible with water and many organic solvents and serves as a precursor to numerous chemicals including formaldehyde, acetic acid, and various plastic
Nitric Acid
Nitric Acid is a concentrated aqueous solution of nitric acid (HNO₃) commonly used as a strong oxidizing acid in numerous industrial, laboratory, and manufacturing processes. It is a highly corrosive, colorless to yellowish liquid with a pungent odor. Nitric Acid 68% is fundamental in the production of fertilizers, explosives, dyes, and pharmaceuticals. It is also widely used in metal treatment, etching, and cleaning applications due to its powerful oxidizing and nitrating properties.
Orange Fragrance Oil
Orange Fragrance Oil is a highly concentrated aromatic oil that delivers a fresh, vibrant, and sweet citrus scent reminiscent of ripe oranges. It is formulated for use in a variety of applications including personal care products, household items, and air fresheners. This fragrance oil offers excellent scent throw, stability, and compatibility with different base materials such as waxes, solvents, and emulsions. Its refreshing aroma makes it a popular choice for perfuming soaps, candles, detergents, and cosmetic formulations, providing a natural and uplifting citrus experience.
Potassium Chromate
Potassium Chromate is an inorganic chemical compound and a bright yellow crystalline solid commonly used as an oxidizing agent and pigment. It serves as a source of chromate ions in various chemical, industrial, and laboratory applications. Due to its toxic and carcinogenic nature, careful handling and strict regulatory compliance are essential. Potassium Chromate is widely used in corrosion inhibition, dyeing, and chemical synthesis processes.
Sulphuric Acid
Sulphuric Acid is a dense, highly corrosive, and strong mineral acid widely used as a fundamental chemical reagent and industrial raw material. It serves as a key component in fertilizer production, chemical synthesis, petroleum refining, and many other industrial processes. The 98% concentration is the concentrated, nearly pure form commonly utilized for manufacturing and processing applications demanding high acid strength and purity.
