PENTANE P:040

SYNONYMS: AMYL HYDRATE; EEC No. 601-006-00-1; EINECS No. 203-692-4; PENTAN; n-PENTANE; normal-PENTANE; PENTANO (Spanish)

IDENTIFICATION:

CAS: 109-66-0

DOT ID: UN1265

Hazard Class or Division: 3 (FLAMMABLE LIQUID)

ERG Guide: 128

Formula: C ₅H ₁₂

RTECS No: RZ9450000

Properties: Extremely flammable liquid. Colorless. Gasoline-like odor. Floats on water; insoluble. Flammable vapor is produced. Boiling point is 97 F (36 C). Vapors are heavier than air; will collect in low areas.

Uses: Solvent for oils, greases, rubber resins, and bituminous materials; paint and varnish removers; degreasing of metals; component of fuel for blowtorches and aerosol propellants; additive in fuels for automotive, aviation, and farm use; in low-temperature devices and manufacturing processes.

HEALTH & SAFETY INFORMATION

• IDLH: 1500 ppm/4,500 mg/m ³ [10% LEL]

• Odor threshold: 360 3,450 mg/m ³

• OSHA Table Z-1 Air Contaminant

• NIOSH Criteria Document: NIOSH 77-151 ALKANES

• Vapor is an eye and respiratory tract irritant. Aspiration into lungs can produce chemical pneumonia and/or lung edema; the effects may be delayed. Very high vapor concentrations may affect central nervous system, resulting in irritation, headache, fatigue, lack of concentration, narcosis. Chronic contact with the liquid will defat the skin, causing dryness, possible irritation, and redness. Long term exposure may cause central nervous system damage with numbness and weakness in arms and legs; dry. cracked skin; liver and kidney disease; and chronic respiratory problems.

Exposure Limits:

• ACGIH TLV: 600 ppm (all isomers, 109-66-0; 109-66-0; 463-82-1)

• NIOSH REL: 120 ppm/350 mg/m ³