Acetic acid [content >80%]

Model NO.: HQ-07

Quantity:

Product Description

Acetic Acid (Content >80%)

1. Product Overview

Acetic acid, also known as ethanoic acid, is a versatile organic acid with the chemical formula CH₃COOH (CAS No. 64-19-7). This product category includes solutions with acetic acid content greater than 80%, typically ranging from 80% to 99.8% purity. Acetic acid is naturally present in vinegar (5-6% concentration) and is widely recognized for its pungent odor and acidic properties. In its concentrated form, it is commonly referred to as glacial acetic acid due to its tendency to solidify at temperatures below 16.7°C.

2. Chemical and Physical Properties

Property	Value
Chemical Formula	CH₃COOH
Molecular Weight	60.05 g/mol
CAS Number	64-19-7
Appearance	Clear, colorless liquid with pungent vinegar-like odor
Concentration Range	>80% (typically 80-99.8%)
pH Value	Strongly acidic (typically 0.5-2.5 depending on concentration)
Solubility	Fully miscible with water, alcohols, and glycerol
Density	1.04-1.07 g/cm³ (depending on concentration)
Boiling Point	117-118°C (pure acetic acid)
Melting Point	16.7°C (pure acetic acid)
Flash Point	39°C (pure acetic acid)
Autoignition Temperature	463-485°C
Vapor Pressure	15.4 hPa (20°C)
Vapor Density	2.07 (vs air)

Key Characteristics

Corrosive properties: Strong acidic nature can cause severe skin and eye burns
Hygroscopic: Absorbs moisture from the air
Volatile: Releases pungent vapor at room temperature
Flammable: Vapors can form explosive mixtures with air (4-16% by volume)
Stable: Does not decompose under normal storage conditions

3. Product Specifications and Quality Standards

Grade Classifications

Grade	Concentration Range	Typical Applications
Industrial Grade	80-99%	Chemical processing, cleaning, descaling
Food Grade	80-99.8%	Food preservation, pickling, pH adjustment
Laboratory Grade	99-99.8%	Chemical analysis, pH control, synthesis
Pharmaceutical Grade	99.5-99.8%	Drug manufacturing, formulation

International Standards Compliance

Chinese Standards: GB 1903.1-2015 (Food Grade), GB/T 676-2007 (Industrial Grade)
American Standards: ASTM D1508, USP-NF (Pharmaceutical Grade)
European Standards: EP (European Pharmacopoeia), REACH regulations

Impurity Control Limits

Impurity	Industrial Grade Limit	Food Grade Limit
Heavy Metals (as Pb)	≤0.001%	≤0.0005%
Arsenic (As)	≤0.0005%	≤0.0001%
Chloride (Cl⁻)	≤0.001%	≤0.0005%
Sulfate (SO₄²⁻)	≤0.002%	≤0.001%
Acetic Anhydride	≤100 ppm	≤50 ppm

4. Production Processes

Main Production Methods

Carbonylation of Methanol (Monsanto Process)
- Raw Material: Methanol and carbon monoxide
- Reaction: CH₃OH + CO → CH₃COOH (catalyzed by rhodium/iodine)
- Characteristics: High efficiency (99% yield), produces high-purity acetic acid (≥99.8%)
Acetaldehyde Oxidation
- Method: Oxidation of acetaldehyde using oxygen or air
- Reaction: 2CH₃CHO + O₂ → 2CH₃COOH
- Characteristics: Traditional method, produces acetic acid with purity ≥99%
Fermentation Process
- Raw Material: Carbohydrate sources (sugarcane, corn, molasses)
- Reaction: Microbial fermentation using acetic acid bacteria
- Characteristics: Natural process, produces lower concentrations (typically 5-10%)

5. Key Applications

Chemical Processing

Vinyl Acetate Monomer (VAM) : Production of polyvinyl acetate (PVAc) for paints, adhesives, and paper coatings
Acetic Anhydride: Used in cellulose acetate production for photographic film and textiles
Acetate Esters: Production of ethyl acetate, butyl acetate, and isopropyl acetate for solvents in paints, inks, and cosmetics
Pharmaceutical Intermediates: Synthesis of aspirin, phenacetin, and other medications

Food and Beverage Industry

Food Preservation: Inhibits bacterial growth in pickling and preserving foods
Flavor Enhancement: Adds tangy flavor to condiments, dressings, and sauces
pH Control: Adjusts acidity in food and beverage production
Vinegar Production: Dilution to 5-6% concentration for commercial vinegar

Textile Industry

Dyeing and Finishing: Sets colors in fabrics and prevents color fading
Acetate Fiber Production: Manufacture of cellulose acetate fibers for textiles
pH Regulation: Controls pH in dye baths for optimal dye uptake

Cleaning and Maintenance

Descaling Agent: Removes mineral deposits, limescale, and rust from industrial equipment, boilers, and pipes
Metal Surface Treatment: Prepares metal surfaces for coating or painting by removing oxidation
Equipment Maintenance: Cleans and maintains heat exchangers, cooling towers, and HVAC systems

Laboratory and Research

Chemical Reagent: Used in acid-base titrations, esterifications, and buffer solutions
Histology: Fixes and preserves tissue samples for biological research
pH Control: Adjusts acidity in chemical reactions and experimental setups

6. Safety and Handling Considerations

Hazards

Corrosive: Causes severe skin and eye burns upon contact
Irritant: Vapors can irritate respiratory tract and mucous membranes
Flammable: Vapors can form explosive mixtures with air
Environmental hazard: May be toxic to aquatic life

Safety Precautions

Personal Protective Equipment (PPE) : Chemical-resistant gloves, goggles, face shield, and protective clothing
Ventilation: Ensure proper workplace ventilation to avoid inhaling fumes
Storage: Store in cool, dry, well-ventilated area away from heat sources and incompatible materials
Handling: Use caution to prevent splashing; avoid contact with skin and eyes
Fire Safety: Keep away from open flames, sparks, and ignition sources

First Aid Measures

Skin Contact: Remove contaminated clothing and rinse with water for at least 15 minutes; seek medical attention
Eye Contact: Flush eyes with water for at least 15 minutes while holding eyelids open; seek medical attention
Inhalation: Move to fresh air; provide oxygen if breathing is difficult; seek medical attention
Ingestion: Rinse mouth and seek medical attention immediately; do not induce vomiting

Emergency Response

Spill handling: Contain spill with inert absorbent material; neutralize with sodium bicarbonate; avoid contact with skin and eyes
Fire fighting: Use water spray, foam, dry chemical, or carbon dioxide extinguishers
Disposal: Follow local regulations for hazardous waste disposal

7. Packaging and Transportation

Packaging Options

Industrial containers: 200L plastic drums, 1000L IBC totes, bulk ISO tanks
Laboratory packaging: 1L, 5L, 25L plastic or glass bottles
Food-grade packaging: Certified food-safe plastic containers

Transportation Requirements

UN Number: UN2790 (for solutions >80% concentration)
Hazard Class: 8 (Corrosive), 3 (Flammable Liquid)
Packing Group: II (Medium danger)
Labeling: Properly labeled with hazard warnings and safety information
Handling: Avoid rough handling to prevent container damage; use explosion-proof equipment

8. Quality Assurance

Our acetic acid products meet the highest industry standards with strict quality control measures:

Batch testing: Each batch undergoes rigorous testing for concentration, purity, and impurities
Documentation: Comprehensive COA (Certificate of Analysis) provided with each shipment
Traceability: Full traceability from raw material to finished product
Compliance: Adheres to international safety and quality standards

For more information or to request a quote, please contact our sales team.