Acetic Acid (CAS 64-19-7), predominantly supplied in its undiluted form as Glacial Acetic Acid (GAA), is a fundamental organic carboxylic acid functioning as a critical chemical intermediate and pH regulator in textile dyeing and finishing and the synthesis of Vinyl Acetate Monomer (VAM). This clear, pungent liquid, chemically identified as ethanoic acid, serves as a powerful solvent in the production of terephthalic acid (PTA) for polyester manufacturing and acts as an acidification agent in industrial pickling processes. We provide bulk supply of this 99.85% min purity ingredient with competitive factory pricing to support the chemical, textile, and food industries. Our logistics team manages temperature-controlled transport to handle its specific freezing point, making MSDS, TDS, COA available alongside customized specifications for food grade (E260) or technical grade applications.
Glacial Acetic Acid CAS 64-19-7
- CAS: 64-19-7
- Synonyms: Glacial acetic acid, Ethanoic acid, GAA, Methane carboxylic acid, Vinegar acid (concentrated)
- Einecs: 200-580-7
- Molecular Formula: C2H4O2
- Grade: Industrial Grade / Glacial Grade 99.5–99.8% Min (Food Grade on Request)
- Package: 25 kg / 30 kg HDPE drums 220 kg HDPE drums
Product Description
Product Overview
Acetic acid (also known as glacial acetic acid) is a colorless, corrosive liquid organic acid widely used in chemical synthesis, food additives, textile and leather processing, and many other industrial fields. Our acetic acid is produced with strict process control, featuring high purity, low impurity content and stable quality, suitable for both industrial and food-grade downstream applications.
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Physicochemical Properties
| Item | Typical Value / Description |
|---|---|
| Chemical Name | Acetic Acid / Glacial Acetic Acid |
| CAS Number | 64-19-7 |
| EINECS Number | 200-580-7 |
| Molecular Formula | C₂H₄O₂ |
| Molecular Weight | 60.05 g/mol |
| Appearance | Colorless, clear liquid with strong pungent vinegar-like odor |
| Assay (Acetic Acid) | 99.5–99.8% min (typical: ≥ 99.8% for glacial grade) |
| Water Content | ≤ 0.20% |
| Formic Acid | ≤ 0.05% |
| Color (Pt-Co) | ≤ 10 |
| Freezing Point | ≥ 16.6 °C (pure acetic acid freezes around this temperature) |
| Boiling Point (101.3 kPa) | ~118 °C |
| Melting/Freezing Point | ~16.6–16.7 °C |
| Density (20 °C) | ~1.048 g/cm³ |
| Relative Vapor Density (air=1) | ~2.1 |
| Vapor Pressure (20 °C) | Low, increases with temperature |
| Flash Point (closed cup) | ~39–43 °C (flammable liquid, Class 3) |
| Auto-ignition Temperature | ~427 °C |
| pKa (at 25 °C, in water) | ~4.76 |
| Solubility | Miscible with water, ethanol, ether, many organic solvents |
| Odor Threshold | A few ppm in air (strong pungent odor) |
| Corrosivity | Corrosive to skin, eyes and many metals (especially in wet state) |
(Values are typical data for reference; detailed COA for each batch can be provided on request.)
Applications
1. Chemical & Industrial Synthesis
- Key raw material for production of vinyl acetate monomer (VAM), acetic anhydride, acetate esters (such as ethyl acetate, butyl acetate), and various organic solvents.
- Used as an important intermediate in pharmaceuticals, dyes, pesticides and fine chemicals.
2. Food & Beverage (Food Grade on Request)
- Used (in appropriate grade and dosage) as food acidity regulator, preservative, and flavoring agent in beverages, sauces, pickles and condiments.
- Production of food-grade acetate salts (such as sodium acetate, calcium acetate) for buffering and preservation functions.
3. Textile, Leather & Printing
- Employed in textile dyeing and printing processes as a pH regulator to improve dyestuff fixation and colorfastness.
- Used in leather tanning and finishing processes as acidifying agent.
4. Rubber, Plastics & Coatings
- Manufacturing of synthetic fibers, plasticizers, and polymer intermediates.
- As solvent or co-solvent in some resin, paint and coating formulations.
5. Water Treatment & Cleaning
- Used as pH adjusting agent and auxiliary in industrial water treatment.
- Ingredient in some cleaning agents, descaling solutions and metal surface treatment chemicals.
For special application scenarios (pharmaceutical, cosmetic or food-contact), please contact us for suitable grade selection and compliance documents.
For related acetate raw materials used in neutralization or esterification routes, see Sodium Acetate and Ethyl Acetate.
Storage Conditions
To ensure safety and maintain product quality, acetic acid should be stored under the following conditions:
- Storage Environment:
- Store in a cool, dry and well-ventilated warehouse.
- Keep away from direct sunlight, heat sources, open flames and hot surfaces.
- Containers:
- Use dedicated HDPE drums, stainless-steel tanks or lined containers compatible with organic acids.
- Ensure containers are tightly closed to avoid moisture absorption and contamination.
- Segregation:
- Keep away from oxidizing agents, strong alkalis, strong bases, reactive metals and other incompatible substances.
- Do not store together with food or animal feed.
- Temperature:
- Recommended storage temperature: 15–30 °C.
- At low temperatures near/under 16 °C, acetic acid may solidify (“freezing”); warm gently and uniformly to re-melt, and mix thoroughly before use.
- Shelf Life:
- Under proper storage, typical shelf life is 12–24 months; please refer to the COA and label of each batch.
Safety Precautions
Acetic acid is a corrosive, flammable liquid and must be handled with proper safety measures:
- Personal Protection
- Wear chemical-resistant gloves, safety goggles or face shield, acid-resistant protective clothing and safety shoes.
- In case of insufficient ventilation, use appropriate respiratory protection (e.g., organic vapor respirator).
- Handling
- Avoid breathing vapors or mists; avoid contact with eyes, skin and clothing.
- Use in well-ventilated areas; install local exhaust ventilation where necessary.
- Do not eat, drink or smoke during handling; wash hands thoroughly after operation.
- Spill & Leak Response
- Small spills: absorb with inert materials (sand, vermiculite, diatomaceous earth), collect in suitable containers for disposal.
- Large spills: contain the spill, prevent it from entering drains and waterways; neutralize carefully with alkaline materials (e.g., sodium carbonate, sodium bicarbonate) under expert supervision.
- Fire Fighting
- Acetic acid vapors can form flammable mixtures with air; keep away from ignition sources.
- In case of fire, use alcohol-resistant foam, dry chemical powder, CO₂ or water spray for extinguishing.
- Firefighters should wear self-contained breathing apparatus and full protective gear.
- First Aid Measures
- Eye Contact: Immediately rinse with plenty of clean water for at least 15 minutes; seek medical attention.
- Skin Contact: Remove contaminated clothing, flush skin with water and mild soap; get medical help if irritation persists.
- Inhalation: Move the person to fresh air; keep warm and at rest. Seek medical attention if breathing is difficult.
- Ingestion: Rinse mouth with water (do not induce vomiting); seek immediate medical assistance.
Please refer to the Safety Data Sheet (SDS) for more detailed safety and regulatory information. SDS and COA can be provided after your inquiry.
FAQ - Technical & Supply Chain
-
Q:
What is Glacial Acetic Acid CAS 64-19-7?
A: Glacial acetic acid is essentially anhydrous acetic acid with a typical concentration of 99.5-99.8% or higher. It is a clear, colorless liquid with a sharp vinegar-like odor and is used as a chemical intermediate, solvent and acidifying agent. -
Q:
Why is it called glacial?
A: The name refers to its ability to freeze into ice-like crystals at around 16.6 degrees Celsius. Because it is nearly water-free, it can solidify during cold-weather storage and transport, unlike diluted acetic acid. -
Q:
What are the main applications?
A: It is used to produce vinyl acetate monomer, purified terephthalic acid, acetic anhydride, acetate esters and solvents. It also serves as an acidulant and process chemical in pharmaceuticals, textiles, rubber, coatings, food processing and water treatment. -
Q:
Is this listing food grade?
A: The standard listing is industrial/glacial grade with a minimum concentration of 99.5-99.8%. Food grade is available on request, but concentrated acetic acid is corrosive and must be diluted and handled according to the intended food-use specification. -
Q:
Which packaging is available?
A: It is supplied in 25 kg or 30 kg HDPE drums and 220 kg HDPE drums. Bulk loading and alternative packaging should be confirmed with the supplier before ordering. -
Q:
What materials are suitable for storage and transfer?
A: Use compatible plastics such as HDPE or suitable stainless steel such as 316L. Carbon steel, aluminum and many other metals are not suitable for concentrated acetic-acid service, so piping, tanks and pumps must be selected for the actual concentration and temperature. -
Q:
What specifications should be checked before ordering?
A: Confirm assay, water, formic acid, acetaldehyde, heavy metals, evaporation residue, color and permanganate time where relevant. Request the batch analysis, technical data and safety information before purchase. -
Q:
How should glacial acetic acid be handled safely?
A: Use chemical-resistant gloves, eye and face protection, and adequate ventilation. Store away from strong oxidizers, bases, heat and ignition sources, and ensure spill containment. In cold conditions allow solidified material to thaw safely before transfer, and follow the safety information.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Support is available for samples, trial orders, bulk and repeat supply.
Storage & Shipping
Product-specific conditions are confirmed before order.
