Product Name: MSDS No.: Date: Oct. 15, 2013 Praxair Material Safety Data Sheet 1. Chemical Product and Company Identification Product Name: Liquid Oxygen Trade Name: Product Use: Chemical Name: Synonym: Chemical Formula: O2 Chemical Family: Not applicable. Telephone: Emergencies: * 1-800-363-0042 Supplier /Manufacture:
1 City Centre DriveSuite 1200Mississauga, ON L5B 1M2
*Call emergency numbers 24 hours a day only for spills, leaks, fire, exposure, or accidents involving thisproduct. For routine information, contact your supplier or Praxair sales representative.2. Hazards Identification Emergency Overview WARNING! Extremely cold, oxidizing liquid and gas under pressure. Vigorously accelerates combustion. Combustibles in contact with liquid may explode on ignition or impact. May cause dizziness and drowsiness. Self-contained breathing apparatus and protective clothing may be required by rescue workers. Can cause sever frostbite. ROUTES OF EXPOSURE:
Inhalation. Swallowing. Skin contact. Eye contact. EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE: INHALATION:
Breathing 80% or more oxygen at atmospheric pressure for more than a few hours maycause nasal stuffiness, cough, sore throat, chest pain and breathing difficulty. Breathingoxygen at higher pressure increases the likelihood of adverse effects within a shorter timeperiod. Breathing pure oxygen under pressure may cause lung damage and also centralnervous system effects resulting in dizziness, poor coordination, tingling sensation, visual andhearing disturbances, muscular twitching, unconsciousness and convulsions. Breathing ofoxygen under pressure may cause prolongation of adaptation to darkness and reducedperipheral vision. SKIN CONTACT:
No harm expected from vapour. Liquid may cause frostbite. SKIN ABSORPTION:
No harm expected from vapour. Liquid may cause severe frostbite. SWALLOWING:
This product is a gas at normal temperature and pressure. 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.
Copyright 2007, Praxair Canada Inc. Page 1 of 8 EFFECTS OF REPEATED (CHRONIC) OVEREXPOSURE:
No evidence of adverse effects from available information. OTHER EFFECTS OF OVEREXPOSURE:
See "Notes to Physician", in the "First Aid" section. MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE:
See "Notes to Physician", in the "First Aid" section. SIGNIFICANT LABORATORY DATA WITH POSSIBLE RELEVANCE TO HUMAN HEALTH HAZARD EVALUATION: CARCINOGENICITY:
Not listed as carcinogen by OSHA, NTP or IARC. 3. Composition and Information on Ingredients COMPONENTS CONCENTRATION 4. First Aid Measures INHALATION:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. Get medical attention. Keep patient warm and atrest. SKIN CONTACT:
Immediately warm frostbite area with warm water (not to exceed 40 C). In case of massive exposure, remove clothingand shoes while showering with warm water. Get medical attention immediately. SWALLOWING:
This product is a gas at normal temperature and pressure. EYE CONTACT:
See a physician, preferably an ophthalmologist, immediately. NOTES TO PHYSICIAN: Supportive treatment should include immediate sedation, anti-convulsive therapy if needed, and rest. Animal studiessuggest that the administration of certain drugs, including phenothiazine drugs and chloroquine, increase thesusceptibility to toxicity from oxygen at high concentrations or pressures. Animal studies also indicate that vitamin Edeficiency may increase susceptibility to oxygen toxicity. Airway obstruction during high oxygen tension may causealveolar collapse following absorption of the oxygen. Similarly, occlusion of the eustachian tubes may cause retraction ofthe eardrum and obstruction of the paranasal sinuses may produce “vacuum-type” headache. Newborn prematureinfants exposed to high oxygen concentrations may suffer delayed retinal damage, which can progress, to retinaldetachment and blindness (retrolental fibroplasia). Retinal damage can also occur in adults exposed to 100% oxygenunder greater that atmospheric pressure, particularly in individuals whose retinal circulation has been previouslycompromised.All individuals exposed for only periods to oxygen at high pressure and all that exhibit overt oxygen toxicity should haveophthalmologic examination.5. Fire Fighting Measures FLAMMABLE : IF YES, UNDER WHAT CONDITIONS?
V i g o r o u s l y a c c e l e r a t e scombustion. EXTINGUISHING MEDIA:
Vigorously accelerates combustion. Use media appropriate for surrounding fire. Water (i.e., safety shower) is thepreferred extinguishing media for clothing fires.
Copyright 2007, Praxair Canada Inc. Page 2 of 8 PRODUCTS OF COMBUSTION: PROTECTION OF FIREFIGHTERS: WARNING! Evacuate all personnel from danger area. Immediately deluge cylinders with water from maximum distance
until cool; then move them away from fire area if without risk. Do not dischage water sprays into liquid. SPECIFIC PHYSICAL AND CHEMICAL HAZARDS:
Oxidizing agent, vigorously accelerates combustion. Contact with flammable materials may cause fire or explosion. Closed container may rupture due to heat of fire. Liquid will freeze water rapidly. Containers are provided with pressurerelief devices that are designed to vent the contents when they are exposed to elevated temperatures. Do not walk onor roll equipment over spill as this could cause explosion. Liquid causes cryogenic “ burns” (frostbite-like injury). Smoking, flames, and electric sparks in the presence of enriched oxygen atmospheres are potential explosion hazards. SENSITIVITY TO IMPACT: SENSITIVITY TO STATIC DISCHARGE: PROTECTIVE EQUIPMENT AND PRECAUTIONS FOR FIREFIGHTERS:
Firefighters should wear self-contained breathing apparatus and full fire-fighting turnout gear. FLAMMABLE LIMITS IN AIR, % by volume: FLASH POINT: AUTOIGNITION TEMPERATURE: 6. Accidental Release Measures STEPS TO BE TAKEN IF MATERIAL IS RELEASED OR SPILLED: Personal Precautions: WARNING!
Extremely cold oxidizing liquid and gas. Immediately evacuate all personnel from danger area. Allowspilled liquid to evaporate. Do not walk on or roll equipment over spill as this could cause explosion. Contact with flammable materials may cause fire or explosion. Shut off leak if without risk. Ventilatearea of leak or move leaking container to ventilated area. Environmental Precautions:
Keep personnel away. Liquid should be dumped into an outdoor pit filled with clean, grease-free and oil-free gravel,where it will safely evaporate. If necessary, call your local supplier for assistance. 7. Handling and Storage PRECAUTIONS TO BE TAKEN IN HANDLING:
Use piping and equipment adequately designed to withstand pressures to be encountered. Ground all equipment. Store and use with adequate ventilation at all times. Use only in a closed system. PRECAUTIONS TO BE TAKEN IN STORAGE:
Copyright 2007, Praxair Canada Inc. Page 3 of 8
Extremely cold oxidizing liquid and gas. Vigorously accelerates combustion. Contact with liquid or cold gas causessevere frostbite. Combustibles with liquid air may explode on ignition or contact. Keep oil, grease, and combustiblesaway. Use only with equipment conditioned for oxygen service. Use piping and equipment adequately designed towithstand the pressures and temperatures to be encountered. Do not get liquid in eyes, on skin or clothing. Store anduse with adequate ventilation. Close valve when not in use and when empty. Clothing exposed to liquid air should beremoved immediately and aired out to reduce the likelihood of an engulfing fire. Ignition sources, such as staticelectricity generated in clothing by walking, etc., should be prevented. Protect container against physical damage. Isolate from combustible gas installations and combustible materials by adequate distance or by gas-tight, fire resistivebarriers. For additional information refer to CGA pamphlet P-1 (See section 16 for more details). OTHER HAZARDOUS CONDITIONS OF HANDLING, STORAGE, AND USE: Extremely cold oxidizing liquid and gas. Do not get liquid or vapours in eyes, on skin, or clothing. Safety showers and eyewash fountains should be immediately available. Use only in a closed system. Use piping and equipment adequately designed to withstand pressures to be encountered. . Liquid can solidify air. Vigorously accelerates combustion. Keep oil, grease, and combustibles away. Store and use with adequate ventilation at all times. Close valve after each use; keep closed even when empty. Air will condense on exposed liquid or cold-gas surfaces, such as vaporizers and piping. Nitrogen, having a lower boiling point than oxygen, will evaporate first leaving an oxygen- enriched condensation on the surface. Prevent reverse flow. Reverse flow into cylinder may cause rupture. When returning cylinder to supplier, be sure valve is closed. Never work on a pressurized system. If there is a leak, close the cylinder valve. Vent the system down in a safe and environmentally sound manner in compliance with all federal, provincial, and local laws; then repair the leak. Never place a compressed gas cylinder where it may become part of an electrical circuit. RECOMMENDED PUBLICATIONS:
Additional information on storage, handling, and use of this product is provided in NFPA 55: Standard for the Storage, Use, and Handling of Compressed and Liquefied Gases in Portable Cylinders, published by the National Fire Protection Association.
See also Praxair publication P-14-153, Guidelines for Handling Gas Cylinders and Containers. Obtain from your localsupplier. 8. Exposure Controls/Personal Protection INGREDIENTS CAS NUMBER Exposure Limits (Species & IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH): VENTILATION/ENGINEERING CONTROLS: LOCAL EXHAUST: Use a local exhaust system, if necessary, to prevent increased oxygen
concentration in the worker's breathing zone. MECHANICAL (General): General exhaust ventilation may be acceptable if it can maintain a
supply of air that is not too rich in oxygen in the worker'sbreathing zone. SPECIAL: Not applicable. OTHER: Not applicable.
Copyright 2007, Praxair Canada Inc. Page 4 of 8 PERSONAL PROTECTION: RESPIRATORY PROTECTION: None required under normal use. However, air-supplied
respirators are required while working in confined spaces with thisproduct. Selection should be based on the current CSA standardZ94.4 “Selection, Care, and Use of Respirators”. Respiratorsshould be approved by NIOSH and MSHA. SKIN PROTECTION: Loose-fitting cryogenic gloves. Gloves free of oil and grease. EYE PROTECTION: Wear safety glasses when handling cylinders.
Select in accordance with the current CSA standard Z94.3,"Industrial Eye and Face Protection", and any provincialregulations, local bylaws or guidelines. OTHER PROTECTIVE EQUIPMENT: Metatarsal shoes for cylinder handling. Protective clothing where
needed. Cuffless trousers should be worn outside the shoes. Select in accordance with the current CSA standard Z195,"Protective Foot Wear", and any provincial regulations, localbylaws or guidelines. 9. Physical and Chemical Properties PHYSICAL STATE: FREEZING POINT: BOILING POINT MOLECULAR WEIGHT: PRESSURE SPECIFIC SOLUBILITY IN GRAVITY: SPECIFIC EVAPORATION COEFFICIENT OF GRAVITY: WATER/OIL DISTRIBUTION: VAPOUR DENSITY: 0.0013 g/ml @ 21.1 C % VOLATILES BY ODOUR THRESHOLD: APPEARANCE & ODOUR: Light blue cryogenic Odourless. 10. Stability and Reactivity STABILITY: CONDITIONS OF CHEMICAL INSTABILITY:
Elevated temperatures. Oxygen reacts withmany materials. INCOMPATIBILITY (materials to avoid):
Flammable materials, hydrocarbons such asoils and grease, ashphalt, ethers, alcohols,acids and aldehydes. HAZARDOUS DECOMPOSITION PRODUCTS: HAZARDOUS POLYMERIZATION: CONDITIONS TO AVOID: CONDITIONS OF REACTIVITY:
Copyright 2007, Praxair Canada Inc. Page 5 of 8 11. Toxicological Information ACUTE DOSE EFFECTS: See section 2. STUDY RESULTS:
At atmospheric concentration and pressure, oxygen poses no toxicity hazards. At high concentrations, newbornpremature infants may suffer delayed retinal damage (retrolental fibroplasia) that can progress to retinal detachment andblindness. Retinal damage may also occur in adults exposed to 100% oxygen for extended periods (24 to 48 hours) or atgreater than atmospheric pressure, particularly in individuals whose retinal circulation has been previously compromised. All individuals exposed for long periods to oxygen at high pressure and all who exhibit overt oxygen toxicity should haveophthalmologic examinations.
At two or more atmospheres, toxicity to the Central Nervous System (CNS) occurs. Symptoms include nausea, vomiting,dizziness or vertigo, muscle twitching, vision changes, and loss of consciousness and generalized seizures. At threeatmospheres, CNS toxicity occurs in less than two hours; at six atmospheres, in only a few minutes.
Patients with chronic obstructive pulmonary disease retain carbon dioxide abnormally. If oxygen is administered, raisingtheir blood oxygen concentration, their breathing becomes depressed and retained carbon dioxide rises to a dangerouslevel.
Animal studies suggest that the administration of certain drugs, including phenothiazine drugs and chloroquine, increasesthe susceptibility to toxicity from oxygen at high concentrations or pressures. Animal studies also indicate that vitamin Edeficiency may increase susceptibility to oxygen toxicity.
Airway obstruction during high oxygen tension may cause alveolar collapse following absorption of the oxygen. Similarly,occlusion of the eustachians tubes may cause retraction of the eardrum and obstruction of the paranasal sinuses mayproduce vacuum-type headache. 12. Ecological Information
No adverse ecological effects expected. This product does not contain any Class I or Class II ozone-depleting chemicals. The components of this mixture are not listed as marine pollutants by TDG Regulations. 13. Disposal Considerations WASTE DISPOSAL METHOD:
Do not attempt to dispose of residual or unused quantities. Return cylinder tosupplier. 14. Transport Information TDG/IMO SHIPPING NAME: HAZARD CLASS: CLASS 2.2(5.1): Non- IDENTIFICATION #: PRODUCT REPORTABLE QUANTITY(PRQ):
flammable, non-corrosive, non-toxic gas and
Special Oxidizer with Class 2 at bottom. PLACARD (When Required):
Special Oxidizer with Class 2 at bottom.
Copyright 2007, Praxair Canada Inc. Page 6 of 8 SPECIAL SHIPPING INFORMATION:
Cylinders should be transported in a secure position, in a well-ventilated vehicle. Cylinders transported in an enclosed,non-ventilated compartment of a vehicle can present serious safety hazards. 15. Regulatory Information
The following selected regulatory requirements may apply to this product. Not all such requirements are identified. Users of thisproduct are solely responsible for compliance with all applicable federal, provincial, and local regulations. This product has beenclassified in accordance with the hazard criteria of the CPR and the MSDS contains all the information required by the CPR. WHMIS (Canada):
CLASS A: Compressed gas. CLASS C: Oxidizing material. International Regulations: DSCL (EEC):
R8- Contact with combustible material may cause fire. International Lists: 16. Other Information MIXTURES:
When two or more gases, or liquefied gases are mixed, their hazardous properties may combine to create additional,unexpected hazards. Obtain and evaluate the safety information for each component before you produce the mixture. Consult an Industrial Hygienist, or other trained person when you make your safety evaluation of the end product. Remember, gases and liquids have properties which can cause serious injury or death. HAZARD RATING SYSTEM: HMIS RATINGS:
PHYSICAL HAZARD 2 STANDARD VALVE CONNECTIONS FOR U.S. AND CANADA: THREADED: PIN-INDEXED YOKE: ULTRA-HIGH-INTEGRITY CONNECTION:
Use the proper CGA connections. DO NOT USE ADAPTERS. Additional limited-standard connections may apply. See CGA pamphlets V-1 and V-7 listed below.
Ask your supplier about free Praxair safety literature as referred to in this MSDS and on the label for this product. Furtherinformation about this product can be found in the following pamphlets published by the Compressed Gas Association,Inc. (CGA), 4221 Walney Road, 5th Floor, Chantilly, VA 20151-2923, Telephone (703) 788-2700, Fax (703) 961-1831,website: www.cganet.com.
Safe Handling and Storage of Compressed Gases
Characteristics and Safe Handling of Cryogenic Liquid and Gaseous Oxygen
Commodity Specification for Gaseous and Liquid Oxygen
Safe Handling of Compressed Gases in Containers
Characteristics and Safe Handling of Medical Gases
Accident Prevention in Oxygen-Rich, Oxygen-Deficient Atmospheres
Use of Oxy-Fuel Gas Welding and Cutting Apparatus
Compressed Gas Cylinder Valve Inlet and Outlet Connections
Copyright 2007, Praxair Canada Inc. Page 7 of 8
Standard Method of Determining Cylinder Valve Outlet Connections for Industrial Gas Mixtures
Handbook of Compressed Gases, Fifth Edition
Praxair asks users of this product to study this MSDS and become aware of product hazards and safety information. Topromote safe use of this product, a user should (1) notify employees, agents, and contractors of the information in thisMSDS and of any other known product hazards and safety information, (2) furnish this information to each purchaser ofthe product, and (3) ask each purchaser to notify its employees and customers of the product hazards and safetyinformation. PREPARATION INFORMATION: October 15, 2013 DEPARTMENT: Safety and Environmental Services TELEPHONE: 905-803-1600
The opinions expressed herein are those of qualified experts within Praxair Canada Inc. We believe that the informationcontained herein is current as of the date of this Material Safety Data Sheet. Since the use of this information and theconditions of use of the product are not within the control of Praxair Canada Inc., it is the user's obligation to determine theconditions of safe use of the product.
Praxair Canada Inc. requests the users of this product to study this Material Data Sheet (MSDS) and become aware ofproduct hazards and safety information. To promote safe use of this product, a user should (1) notify its employees,agents and contractors of the information on this MSDS and any product hazards and safety nformation, (2) furnish thissame information to each of its customers for the product, and (3) request such customers to notify their employees andcustomers for the product of the same product hazards and safety information. Praxair and the Flowing Airstream design are trademarks of
Other trademarks used herein are trademarks or registered trademarks of their respective owners.
Praxair Canada Inc. 1 City Centre DriveSuite 1200Mississauga, ON L5B 1M2
Copyright 2007, Praxair Canada Inc. Page 8 of 8
Best practice guidelines for non-invasive prenatal diagnosis to determine fetal sex for known carriers of congenital adrenal hyperplasia (CAH). Background Fetal DNA is required for prenatal genetic testing. Traditionally invasive testing by amniocentesis or chorionic villus sampling has been required to obtain fetal DNA. These procedures carry a small but significant (around 1%) risk
Parliamentary Committee on Health Prescription Drugs - October 27, 2003 Speaker’s Notes: Dr. David Zitner Director, Medical Informatics Faculty of Medicine, Dalhousie University Dr. David Zitner Director, Medical Informatics Faculty of Medicine, Dalhousie University 5849 University Avenue Halifax, Nova Scotia (902) 494-3802 NECESSARY TREATMENT FOR ALL CANA