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Glacial Acetic Acid Tech grade

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Glacial Acetic Acid Tech grade is a clear, colorless liquid with a pungent vinegar-like odor. It is a less refined form of acetic acid primarily used for industrial and technical applications rather than food or pharmaceutical uses. Typically available in concentrations ranging from 80% to glacial (99-100%), it serves as a crucial chemical reagent, solvent, and intermediate in various industrial processes.

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Categories: Solvents (Cleaning), Solvents(paint) Tags: Acetic acid technical grade, Chemical manufacturing, Plastic and polymer processing, Solvent for inks and dyes, Water treatment chemical

Description

Table of Contents

Glacial Acetic Acid Tech grade

Primary Uses

Chemical Manufacturing and Industrial Synthesis

Intermediate in chemical production: Used to synthesize esters (e.g., ethyl acetate, butyl acetate), acetic anhydride, vinyl acetate monomer (VAM), and acetamide.
Plastic and polymer industry: Employed in the production of cellulose acetate (used in photographic films, coatings, and plastics).
Rubber processing: Acts as a coagulant in natural rubber latex processing.
Dye and pigment production: Utilized as a reagent or solvent in the synthesis of dyes, pigments, and ink components.

Textile Industry

Dyeing and finishing agent: Used to adjust pH during dyeing processes and enhance dye uptake and fixation on fabrics.
Scouring and desizing agent: Helps remove starch and other sizing agents from yarns and fabrics before dyeing.
Cleaning textile equipment: Acts as a descaling and cleaning agent in textile machinery.

Leather and Tanning Industry

pH control in tanning: Used in pickling and tanning steps to maintain appropriate acidity levels.
Softening and fatliquoring processes: Improves the flexibility and texture of hides during processing.

Agricultural and Veterinary Use

Silage preservative: Used in diluted form to inhibit mold and microbial spoilage during fodder fermentation.
pH regulator in pesticides and herbicides: Adjusts formulation pH for better stability and efficacy.
Natural herbicide component: Included in organic weed control solutions due to its ability to burn plant tissue.
Antimicrobial for animal housing: Used in disinfectant solutions for cleaning animal pens and tools.

Cleaning and Maintenance Applications

Industrial descaler: Removes limescale and mineral deposits from machinery, pipelines, and boilers.
Degreasing agent: Helps in removing oil and greasy residues from metal surfaces during pre-treatment processes.
Sanitizing agent in breweries and dairies: Used for cleaning fermentation vessels, tubing, and equipment (non-food contact surfaces only).

Paints, Coatings, and Adhesives

Solvent carrier: Functions as a solvent for paints, adhesives, varnishes, and sealants.
pH control in formulations: Used in coatings and resins to manage acidity during processing.

Secondary Uses

Water Treatment

pH adjustment: Occasionally used to control alkalinity and scaling in industrial water treatment systems.

Electronics Industry

Etching agent: Involved in the preparation of metal surfaces for microelectronic component fabrication.

Laboratory and Analytical Applications

Reagent in titrations and synthesis: Used in various chemical reactions and buffer preparations.
Solvent medium: Occasionally used to dissolve inorganic salts or act as a medium for specific organic reactions.

Construction and Surface Preparation

Concrete cleaning: Removes efflorescence, mineral buildup, and rust stains on masonry and concrete surfaces.
Surface pH control: Prepares concrete or masonry before coating or sealing

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Ethanoic acid
Common/Trade Names:
- Technical-grade acetic acid
- Glacial acetic acid (if ≥99% purity)
CAS Number: 64-19-7
HS Code: 2915.21.00 (varies by country)
Molecular Formula: C₂H₄O₂ (CH₃COOH)
Synonyms:
- Methanecarboxylic acid
- Ethylic acid

2. Physical & Chemical Properties

Physical State: Clear, colorless liquid (glacial form solidifies below 16.6°C)
Color & Odor: Pungent vinegar-like odor; may appear slightly yellow if impure
Melting Point: 16.6°C (61.9°F)
Boiling Point: 118.1°C (244.6°F)
Density: 1.049 g/cm³ (25°C)
Solubility:
- Miscible in water, ethanol, ether
pH Level: Strongly acidic (~2.4 at 1.0 M)
Vapor Pressure: 15.7 mmHg (25°C)
Flash Point: 39°C (102°F) (closed cup)
Autoignition Temperature: 427°C (801°F)
Viscosity: 1.22 mPa·s (25°C)

3. Safety & Hazard Attributes

Hazard Class (GHS):
- Corrosive (Category 1B)
- Flammable (Category 3, for concentrations >80%)
- Skin/Eye Irritant (Category 1)
NFPA Ratings:
- Health: 3 | Flammability: 2 | Reactivity: 0
Exposure Limits:
- OSHA PEL: 10 ppm (25 mg/m³)
- ACGIH TLV: 10 ppm (25 mg/m³)
Reactivity:
- Corrosive to metals (releases H₂ gas)
- Reacts violently with oxidizers (e.g., chromic acid, permanganates)

4. Storage & Handling Attributes

Storage Conditions:
- Store in a cool, ventilated area (<25°C)
- Keep away from oxidizers and bases
- Use corrosion-resistant containers (HDPE, stainless steel 316)
Incompatible Materials:
- Strong bases (e.g., NaOH), nitric acid, peroxides
Container Type:
- HDPE drums or stainless steel tanks
- Avoid aluminum and copper
Shelf Life: Indefinite if sealed (but may absorb moisture)
Special Handling:
- Use nitrile gloves, goggles, and fume hood
- Ground containers to prevent static sparks

5. Regulatory & Compliance Attributes

Regulatory Status:
- EPA: Listed as a hazardous substance (CERCLA)
- REACH: Registered
- DOT: UN 2789 (Class 8 – Corrosive)
Hazard Symbols (GHS):
- Corrosion
- Flame (for concentrations >80%)
Transportation Restrictions:
- UN Number: 2789
- Packing Group: II
Waste Disposal:
- Neutralize with sodium bicarbonate before disposal
- EPA Hazardous Waste Code: D002 (corrosive)

6. Environmental & Health Impact

Ecotoxicity:
- LC50 (fish): ~50–100 mg/L
- Readily biodegradable
Persistence: Breaks down in air/water within days
Carcinogenicity: Not classified (IARC/NTP)
Biodegradability: >90% in 28 days (OECD 301B)

SAFETY HANDLING PRECAUTIONS

Safety Precautions

Personal Protective Equipment (PPE)

Gloves: Chemical-resistant (neoprene, nitrile, or PVC).
Eye/Face Protection: Goggles + face shield (mandatory for concentrated acetic acid).
Respiratory Protection: NIOSH-approved respirator (organic vapor cartridge) if ventilation is inadequate.
Body Protection: Chemical-resistant apron or suit (for large spills/high concentrations).

Handling & Storage

Ventilation: Use in a fume hood or well-ventilated area.
Static Electricity Prevention: Ground and bond containers to avoid sparks.
Incompatible Materials: Keep away from:
- Oxidizers (e.g., nitric acid, hydrogen peroxide) → violent reactions.
- Bases (e.g., sodium hydroxide) → exothermic neutralization.
- Metals (e.g., aluminum, zinc) → corrosion & hydrogen gas release.
Storage:
- Sealed, corrosion-resistant containers (HDPE, stainless steel, or glass-lined tanks).
- Cool, dry, well-ventilated area away from sunlight and heat sources.
- Flammable storage cabinet (if ≥80% concentration).

Hygiene Measures

No eating, drinking, or smoking in handling areas.
Emergency shower & eyewash station must be accessible.
Wash hands thoroughly after handling.

First Aid Measures

Inhalation (Vapors/Fumes)

Move to fresh air immediately.
If breathing is difficult, administer oxygen and seek medical help.
If unconscious, perform CPR (if trained) and call emergency services.

Skin Contact

Remove contaminated clothing immediately.
Rinse with plenty of water for ≥15 minutes.
Apply soap to remove residual acid.
Seek medical attention if burns or irritation persist.

Eye Contact

Immediately flush eyes with water for ≥15 minutes (hold eyelids open).
Do NOT rub eyes.
Seek emergency medical care (risk of corneal damage).

Ingestion

Do NOT induce vomiting (risk of esophageal burns).
Rinse mouth with water.
Drink milk or water to dilute (if conscious).
Seek immediate medical attention.

Firefighting Measures

Fire Hazards

Highly flammable (≥80% concentration, flash point 39°C / 102°F).
Vapors can form explosive mixtures with air.
Decomposes at high temps, releasing flammable gases (CO, CO₂).

Extinguishing Media

✔ Alcohol-resistant foam
✔ CO₂
✔ Dry chemical powder
✔ Water spray (to cool containers, not direct jet—may spread flames).

Firefighting Precautions

Wear SCBA (self-contained breathing apparatus) and full protective gear.
Evacuate area—vapors travel and can ignite.
Cool nearby containers with water spray to prevent explosion.
Do NOT extinguish flames unless leak is stopped (risk of re-ignition).

Spill & Leak Control

Small Spills:
- Neutralize with sodium bicarbonate (baking soda) or calcium carbonate.
- Absorb with inert material (vermiculite, sand).
- Dispose as hazardous waste.
Large Spills:
- Evacuate area.
- Use acid-resistant PPE.
- Contain spill with barriers (clay, sandbags).
- Ventilate area to disperse vapors.