n-Heptane SDS | Safety Data Sheet

Product Namen-Heptane
CAS Number142-82-5
HazardFlammable, Aspiration hazard
UseSolvent, Industrial, Laboratory

1. Identification

Product Name: n-Heptane

Synonyms: Heptane, Normal Heptane

CAS Number: 142-82-5

Recommended Use: Solvent, Laboratory, Industrial

Manufacturer: Dongying Liangxin Petrochemical Technology Development Limited Company

Emergency Phone: +86 178 1030 0898

2. Hazard Identification

GHS Classification: Flammable liquids (Cat. 2), Aspiration hazard (Cat. 1), STOT SE (Cat. 3)

Signal word: Danger

  • H225: Highly flammable liquid and vapor
  • H304: May be fatal if swallowed and enters airways
  • H336: May cause drowsiness or dizziness

Precautionary statements:

  • P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
  • P280: Wear protective gloves/protective clothing/eye protection/face protection.
  • P301+P310+P331: IF SWALLOWED: Immediately call a POISON CENTER/doctor. Do NOT induce vomiting.
  • P403+P235: Store in a well-ventilated place. Keep cool.

3. Composition / Information on Ingredients

ComponentCAS NumberConcentration
n-Heptane142-82-5≥99%

4. First Aid Measures

  • Inhalation: Move to fresh air. Seek medical attention if symptoms persist.
  • Skin Contact: Wash with soap and water. Remove contaminated clothing.
  • Eye Contact: Rinse with water for several minutes. Seek medical attention if irritation persists.
  • Ingestion: Do NOT induce vomiting. Seek immediate medical attention.

5. Fire-Fighting Measures

  • Extinguishing media: Dry chemical, CO₂, foam, water spray
  • Unsuitable media: Direct water jet
  • Special hazards: Vapors may form explosive mixtures with air
  • Protective equipment: Self-contained breathing apparatus, full protective clothing

6. Accidental Release Measures

  • Evacuate area and wear proper PPE
  • Prevent release into waterways or soil
  • Absorb with inert material (sand, vermiculite) and collect for disposal

7. Handling and Storage

  • Avoid inhalation of vapors, use in well-ventilated areas
  • Keep away from heat, sparks, flames, and oxidizers
  • Store in tightly closed containers in cool, dry, ventilated place

8. Exposure Controls / Personal Protection

  • TLV: 400 ppm (ACGIH), PEL: 500 ppm (OSHA)
  • Engineering controls: Local exhaust ventilation
  • PPE: Safety goggles, gloves, protective clothing, respirator if needed

9. Physical and Chemical Properties

  • Appearance: Clear, colorless liquid
  • Odor: Characteristic, gasoline-like
  • Boiling point: 98°C
  • Melting point: -90°C
  • Flash point: -4°C
  • Autoignition temperature: 204°C
  • Density: 0.684 g/cm³ (20°C)
  • Solubility: Insoluble in water; soluble in organic solvents

10. Stability and Reactivity

  • Stable under normal conditions
  • Incompatible with strong oxidizers
  • Hazardous decomposition: Carbon monoxide, carbon dioxide, smoke

11. Toxicological Information

  • Acute toxicity: Inhalation may cause dizziness, drowsiness
  • Skin: May cause dryness or mild irritation
  • Eye: May cause irritation
  • Ingestion: May be harmful if swallowed; aspiration hazard

12. Ecological Information

  • Biodegradability: Readily biodegradable
  • Ecotoxicity: Harmful to aquatic life
  • Mobility: High potential to evaporate; low water solubility

13. Disposal Considerations

  • Dispose of in accordance with local, regional, and national regulations
  • Do not release into the environment
  • Use approved waste disposal companies

14. Transport Information

  • UN Number: 1208
  • Proper Shipping Name: Heptanes
  • Transport Class: 3 (Flammable Liquid)
  • Packing Group: II
  • Label: Flammable

15. Regulatory Information

  • GHS compliant
  • OSHA Hazard Communication Standard
  • Local chemical regulations must be followed

16. Other Information

Prepared according to latest international SDS guidelines.

Disclaimer: The information provided is believed to be correct, but does not purport to be all-inclusive and shall be used only as a guide.