n-Heptane, Carbon Chemistry – Safety Data Sheet (SDS)

Product Name: n-Heptane
Synonyms: Aliphatic Hydrocarbon, Dipropylmethane, Heptane (n-Heptane)
CAS Number: 142-82-5
Type: Solvent (Non-Polar)
Supplier: Carbon Chemistry Ltd.
Address: 34501 E Quincy Ave Bldg 28, Watkins, CO 80137
Phone: +1 (888) 446-8421
Emergency Phone: CHEMTREC CCN832309 (800-424-9300, 24-hour)
GHS Classification:
- Flammable Liquid – Category 2
- Skin Irritation – Category 2
- STOT (Single Exposure, Drowsiness/Dizziness) – Category 3
- Aspiration Toxicity – Category 1
- Aquatic Acute – Category 1
- Aquatic Chronic – Category 1
Signal Word: Danger
NFPA Ratings: Health (2), Flammability (3), Physical Hazard (0)

Hazard Statements:
- H225: Highly flammable liquid and vapor.
- H315: Causes skin irritation.
- H336: May cause drowsiness or dizziness.
- H304: May be fatal if swallowed and enters airways.
- H400: Very toxic to aquatic life.
- H410: Very toxic to aquatic life with long-lasting effects.
Precautionary Statements:
- Keep away from heat, sparks, open flames, and hot surfaces – no smoking.
- Keep container tightly closed.
- Ground and bond container and receiving equipment.
- Use explosion-proof electrical and non-sparking tools.
- Avoid breathing vapors or mist.
- Wash hands thoroughly after handling.
- Use only outdoors or in well-ventilated areas.
- Avoid release to the environment.
- Wear protective gloves, clothing, and eye/face protection.
- Store in a cool, well-ventilated place. Keep locked up.
- Dispose of contents and container according to local, state, and federal regulations.
California Prop 65: Not listed.

Inhalation: Move victim to fresh air. If breathing becomes difficult, administer oxygen. Seek medical attention.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing and launder before reuse.
Eye Contact: Rinse cautiously with water for at least 15 minutes. Seek medical attention if irritation persists.
Ingestion: Do not induce vomiting. Never give anything by mouth to an unconscious person. Seek immediate medical attention.
Note to Physicians: Treat symptoms and reduce overexposure. Aspiration hazard if swallowed.
Symptoms: May cause skin irritation, drowsiness, or dizziness.

Flash Point: 25 °F (–4 °C)
Auto-Ignition Temperature: Not available
Extinguishing Media: Dry powder, alcohol-resistant foam, dry sand, or CO₂. Do not use water jet.
Explosion Sensitivity: Not sensitive to static discharge or mechanical impact.
Protective Gear: Firefighters should wear SCBA and full protective gear.
Decomposition Products: Carbon oxides.

Ground and bond all equipment and containers during transfer.
Use non-sparking tools and explosion-proof equipment.
Store tightly closed in a cool, dry, and well-ventilated area away from ignition sources.
Keep drums upright and properly labeled.
Avoid strong oxidizing agents and heat.

Acute Toxicity: LC₅₀ (rat, inhalation, 4h): 103,000 mg/m³
Irritation: Causes skin irritation; may cause eye irritation.
STOT – Single Exposure: May cause drowsiness or dizziness.
Aspiration Hazard: May be fatal if swallowed and enters airways.
Carcinogenicity: Not listed by OSHA, IARC, or NTP.
Aquatic Toxicity: LC₅₀ (goldfish, 24h): 4 mg/L | LC₅₀ (tilapia, 96h): 375 mg/L | EC₅₀ (daphnia, 48h): 1.5 mg/L
Persistence: Not readily biodegradable (BOD/ThBOD 3.5%).
Bioaccumulation: High potential for bioaccumulation (log Pow > 4).

UN Number: 1206
Proper Shipping Name: Heptanes
Hazard Class: 3 – Flammable Liquid
Packing Group: II
Marine Pollutant: Yes
ERG Number: 128
Disposal: Burn in a chemical incinerator equipped with an afterburner and scrubber. Avoid release into the environment. Follow all local, state, and federal regulations.

Last Updated: March 6, 2018 n-Heptane is a clear, colorless, and highly flammable liquid hydrocarbon solvent supplied by Carbon Chemistry Ltd. It is primarily used in laboratory and industrial applications as a non-polar solvent.