Praxair Material Safety Data Sheet
1. Chemical Product and Company Identification
Chemical Formula: C4H10
Emergencies: * 1-800-363-0042
Praxair Canada Inc.
1 City Centre Drive
Mississauga, ON L5B 1M2
Product Name: Butane
Methylethylmethane, Diethyl, n-Butane,
*Call emergency numbers 24 hours a day only for spills, leaks, fire, exposure, or accidents involving this
product. For routine information, contact your supplier or Praxair sales representative.
2. Hazards Identification
Flammable liquid and gas under pressure. Can form explosive mixtures with air. May cause
frostbite. Can cause rapid suffocation. May cause dizziness and drowsiness. Self-contained
breathing apparatus may be required by rescue workers. Odour: Faintly disagreeable above
THRESHOLD LIMIT VALUE: TLV-TWA Data from 2007 Guide to Occupational Exposure Values (ACGIH). TLV-TWAs
should be used as a guide in the control of health hazards and not as fine lines between safe and dangerous
ROUTES OF EXPOSURE:
Inhalation. Skin contact. Swallowing. Eye contact.
EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE:
Asphyxiant. Effects are due to lack of oxygen. Moderate concentrations may cause
headaches, drowsiness, dizziness, excitation, excess salivation, vomiting, and
unconciousness. Lack of oxygen can kill.
Liquid may cause frostbite.
This product is a gas at normal temperature and pressure, but frostbite of the lips and
mouth may result from contact with the liquid.
Relatively non-irritating, but may cause frostbite.
No harm expected.
EFFECTS OF REPEATED (CHRONIC) OVEREXPOSURE:
Repeated or prolonged exposure may cause dermatitis.
Copyright © 2005, Praxair Canada Inc.
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