Praxair Material Safety Data Sheet
1. Chemical Product and Company Identification
Chemical Formula: NH3
Emergencies: * 1-800-363-0042
Praxair Canada Inc.
1 City Centre Drive
Mississauga, ON L5B 1M2
Product Name: Ammonia
Ammonia Gas, Spirit of Hartshorn.
*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
Corrosive liquid and gas under pressure. Harmful if inhaled. Can cause eye, skin, and
respiratory tract burns. May cause kidney and respiratory system damage. Can catch fire. Self-
contained breathing apparatus and protective clothing must be worn by rescue workers.
Under ambient conditions, this is a colourless gas with a pungent, irritating odour.
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, skin absorption, eye contact, and swallowing..
Overexposure to concentrations moderately above the threshold limit value (TLV) of 25 ppm
may cause irritation of the eyes, nose, and throat. Higher concentrations may cause
breathing difficulty, chest pain, bronchospasm, pink frothy sputum, and pulmonary edema.
Overexposure may predispose to the development of acute bronchitis and pneumonia. STEL
= 35 ppm (ACGIH).
EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE:
Prolonged or widespread skin contact may result in the absorption of potentially harmfull
amounts of material.
An unlikely route of exposure. This product is a gas at norma