Ethylene Glycol Inhibited ACS Grade

Product Identifier

Ethylene Glycol Inhibited ACS Grade

Grade

ACS Grade

CAS Number

107-21-1

Chemical Formula

C2H6O2

Molecular Weight

62.07 g/mol

Manufacturer

Alliance Chemical
204 South Edmond Street, Taylor, TX 76574

Emergency Phone

Chemtel 1-800-255-3924 (24/7)

Synonyms

Inhibited ethylene glycol; phosphate-inhibited monoethylene glycol (MEG); 1,2-ethanediol, inhibited

Recommended Use

Corrosion-inhibited ethylene glycol (ACS grade): laboratory heat-transfer baths and coolant formulation where a phosphate-buffered glycol is required.

Restrictions on Use

Not for food, drug or cosmetic use. Toxic if swallowed in quantity (it tastes sweet): keep away from children and pets, and do not store in food or drink containers.

Classification

• Acute toxicity (oral), Category 4
• Specific target organ toxicity, repeated exposure, Category 2

Signal Word

Warning

Hazard Statements

• H302Harmful if swallowed
• H373May cause damage to organs through prolonged or repeated exposure

Precautionary Statements

• P260Do not breathe dust, fume, gas, mist, vapors or spray.
• P264Wash hands and face thoroughly after handling.
• P270Do not eat, drink or smoke when using this product.
• P301+P312IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell.
• P314Get medical advice or attention if you feel unwell.
• P330Rinse mouth.
• P501Dispose of contents and container in accordance with local, regional, national, and international regulations.

Classification, hazard (H) and precautionary (P) statements and pictograms per OSHA HCS 2024 (29 CFR 1910.1200, Appendices A–C), aligned with GHS Rev. 7.

Concentrations are nominal; lot-specific values appear on the Certificate of Analysis. Components not contributing to classification are omitted.

Eyes

Rinse with plenty of water for at least 15 minutes. Remove contact lenses if present and easy to do. Continue rinsing. Seek medical attention immediately.

Skin

Immediately flush with plenty of water for at least 15 minutes while removing contaminated clothing. Wash with soap. Get medical attention immediately.

Inhalation

Move person to fresh air and keep comfortable for breathing. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. Get medical attention immediately.

Ingestion

Do Not Induce Vomiting! Never give anything by mouth to an unconscious person. If conscious, wash out mouth with water. Get medical attention immediately.

Most Important Symptoms and Effects

• Ingestion may cause nausea, vomiting and abdominal pain; larger amounts may cause systemic poisoning.

Immediate Medical Attention and Special Treatment

• Treat symptomatically. Get medical attention if symptoms develop or persist.

Suitable Extinguishing Media

Use water spray, alcohol-resistant foam, dry chemical, or CO2. Use measures appropriate to local circumstances.

Unsuitable Extinguishing Media

Do not use a solid water stream as it may scatter and spread fire.

Specific Hazards Arising from the Chemical

Containers may rupture when heated.

Protective Equipment

Wear self-contained breathing apparatus and full protective clothing.

Hazardous Combustion Products

Carbon monoxide and carbon dioxide on combustion; aldehydes and other carbonyl compounds when overheated.

Personal Precautions

Use PPE as described in Section 8. Ensure adequate ventilation. Evacuate personnel to safe areas.

Environmental Precautions

Prevent leakage or spillage from entering drains, sewers, or waterways.

Containment & Cleanup

Absorb with inert material. Collect in appropriate waste container. Dispose per applicable regulations.

Safe Handling

Use with adequate ventilation. Avoid contact with skin, eyes, and clothing. Wash thoroughly after handling. Keep container closed when not in use.

Safe Storage

Store in a cool, dry, well-ventilated area. Keep away from incompatible materials (see Section 10). Keep containers tightly closed.

Specific Storage Precautions

Keep tightly closed (hygroscopic) in a cool, dry place away from oxidizers. Store separately from food and drink.

Occupational Exposure Limits

Engineering Controls

Use adequate ventilation. Provide eyewash stations and quick-drench showers accessible to areas of use.

Eye/Face Protection

Wear chemical safety goggles or face shield.

Skin Protection

Wear chemical-resistant gloves and protective clothing.

Respiratory Protection

Use NIOSH-approved respirator if exposure limits are exceeded or irritation occurs.

Exposure limits sourced from NIOSH Pocket Guide, OSHA 29 CFR 1910.1000 and ACGIH TLVs.

Appearance

Clear, colorless viscous liquid

Odor

Odorless

Odor Threshold

No data available

pH

8.5–10.5 (50% aqueous solution)

Melting Point / Freezing Point

-13 °C (9 °F)

Boiling Point

196–198 °C (385–388 °F) at 760 mmHg

Flash Point

111 °C (232 °F), closed cup

Evaporation Rate

No data available

Flammability (solid, gas)

No data available

Upper/Lower Flammability or Explosive Limits

No data available

Vapor Pressure

0.12 mmHg (0.016 kPa) at 20 °C

Vapor Density

No data available

Relative Density

1.12–1.13 at 20 °C (water = 1)

Solubility

Completely miscible with water

Partition Coefficient (n-octanol/water)

log Kow -1.36

Auto-ignition Temperature

413 °C (775 °F)

Decomposition Temperature

No data available

Viscosity

16.1 mPa·s at 25 °C

Particle Characteristics

Not applicable

Form

Liquid

Density

1.115 at 68 °F (USCG, 1999) - Denser than water; will sink

Refractive Index

1.4300 - 1.4370

Values shown reflect product-specific canonical data. Lot-specific ranges may vary; see the Certificate of Analysis for the shipped lot.

Reactivity

Not reactive under normal conditions of use and storage.

Chemical Stability

Stable under recommended storage conditions.

Possibility of Hazardous Reactions

None under normal processing conditions.

Conditions to Avoid

High heat (above 40 °C in storage), open flame, and moisture (hygroscopic).

Incompatible Materials

Strong oxidizing agents, strong acids and bases, aldehydes, alkali and alkaline-earth metals, aluminum compounds.

Hazardous Decomposition Products

Carbon monoxide and carbon dioxide on combustion; aldehydes and other carbonyl compounds when overheated.

See below for route-specific acute toxicity data.

Likely Routes of Exposure

Inhalation, skin contact, eye contact, ingestion.

Symptoms

• Ingestion may cause nausea, vomiting and abdominal pain; larger amounts may cause systemic poisoning.

Delayed and Chronic Effects

• Prolonged or repeated exposure may damage organs.

Carcinogen Classification

Ecotoxicity

Daphnia EC50: 10000 mg/L (48 h, Daphnia magna (freshwater, static))

Persistence & Degradability

Not persistent; low bioconcentration, not expected to volatilize

Bioaccumulative Potential

log Kow −1.36

Mobility in Soil

Very high mobility in soil (estimated Koc ≈ 0.2)

Dispose of contents/container in accordance with applicable federal, state, and local regulations. Do not dispose of into drains or waterways.

EPA RCRA Waste Codes

Not a listed or characteristic hazardous waste as supplied; used glycol may pick up metals and become hazardous — test before disposal.

Not regulated for transport under US DOT 49 CFR Subchapter C, IMDG, or IATA DGR in packages holding less than the reportable quantity below.

Hazardous substance (49 CFR 171.8)

A single package holding 5,000 lb (2,270 kg), about 530 US gal, or more of this product contains the reportable quantity (RQ) of a hazardous substance and is regulated as a hazardous material.

Reportable quantity (49 CFR 172.101 Appendix A)

Ethylene glycol — RQ 5,000 lb (2,270 kg)

Shipping description (package at or above the RQ)

UN3082, Environmentally hazardous substance, liquid, n.o.s. (Ethylene glycol), 9, III, RQ

CERCLA Reportable Quantity (RQ)

Ethylene glycol (CAS 107-21-1) 5,000 lb (2,270 kg), about 540 US gal. EPCRA Section 313 (TRI) listed, de minimis 1.0%.

SARA 311/312 hazard categories correspond to the GHS classification in Section 2. Data retrieved as of: California Proposition 65 2026-10-02; US EPA TSCA Active Inventory 2026-10-02; EPCRA SARA 313 (TRI) 2026-10-02.

Revision Date

2026-10-08

Format

16-section format per OSHA HCS 2024 (29 CFR 1910.1200, Appendix D), aligned with GHS Rev. 7.