Liquid Argon

SECTION 2: Hazards identification

Emergency Overview CAUTION! Extremely cold liquid essure. Can cause rapid suffocation. Can cause severe frostbite. May cause dizziness and drowsiness. Self-contained breathing apparatus and protective clothing may be required by rescue workers.

Principle Routes of Exposure

Inhalation. Swallowing. Skin contact. Eye contact. THRESHOLD LIMIT VALUE: TLV-TWA Data from 2004 Guide to Occupational Exposure Values (ACGIH). EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE: INHALATION: Asphyxiant. Effects are due to lack of oxygen. Moderate concentrations may cause headaches, drowsiness, dizziness, excitation, excess salivation, vomiting, and unconsciousness. Lack of oxygen can kill. SKIN CONTACT: No harm expected from vapour. Liquid may cause frostbite. SKIN No harm expected. Liquid may cause frostbite. ABSORPTION: SWALLOWING: An unlikely route of exposure, but frostbite of the lips and mouth may result from contact with the liquid. EYE CONTACT: No harm expected from vapour. Liquid may cause frostbite. EFFECTS OF REPEATED (CHRONIC) OVEREXPOSURE: No evidence of adverse effects from available information. OTHER EFFECTS OF OVER-EXPOSURE: This material is an asphyxiant. Lack of oxygen can cause death.

Medical Conditions Generally Aggravated by Exposure

OVER-EXPOSURE A knowledge of the available toxicology information and of the physical and chemical properties of the material suggests that overexposure is unlikely to aggravate existing medical conditions. SIGNIFICANT LABORATORY DATA WITH POSSIBLE RELEVANCE TO HUMAN HEALTH HAZARD EVALUATION: None currently known. CARCINOGENICITY: Not listed as carcinogen by OSHA, NTP or IARC.