Friday, April 30, 2004

CARBON DIOXIDE (CO₂) Praxair Material Safety Data Sheet

Product Name: Carbon dioxide (MSDS No. P-4574-H) Trade Name: Carbon Dioxide

Chemical Name: Carbon dioxide Synonyms: Carbonic anhydride, carbonic acid gas

Formula: CO2 Chemical Family: Acid anhydrides

Telephone: Emergencies: 1-800-645-4633* Company Name: Praxair, Inc.

CHEMTREC: 1-800-424-9300* 39 Old Ridgebury Road

Routine: 1-800-PRAXAIR Danbury, CT 06810-5113

* Call emergency numbers 24 hours a day only for spills, leaks, fire, exposure, or accidents involving this

product. For routine information, contact your supplier, Praxair sales representative, or call

1-800-PRAXAIR (1-800-772-9247).

2. Composition/Information on Ingredients

This section covers materials of manufacture only. See sections 3, 8, 10, 11, 15, and 16 for

information on by-products generated during use, especially use in welding and cutting.

For custom mixtures of this product, request an MSDS for each component. See section 16 for

important information about mixtures.

INGREDIENT CAS NUMBER CONCENTRATION OSHA PEL ACGIH TLV-TWA

Carbon Dioxide 124-38-9 >99% 5,000 ppm* 5,000 ppm**

* The symbol > means “greater than”; the symbol <, “less than.”

** See section 3.

3. Hazards Identification

EMERGENCY OVERVIEW

CAUTION! High-pressure liquid and gas.

Can cause rapid suffocation.

Can increase respiration and heart rate.

May cause nervous system damage.

May cause frostbite.

May cause dizziness and drowsiness.

Self-contained breathing apparatus may be required by rescue workers.

Odor: None to slightly pungent

THRESHOLD LIMIT VALUE: TLV-TWA, 5,000 ppm (ACGIH, 1998). TLV-TWA, 15 min STEL,

30,000 ppm. ACGIH recommends a TLV-TWA of 5 mg/m3 for welding fumes not otherwise classified

(NOC) that may be generated during welding with this product. TLV-TWAs should be used as a guide in

the control of health hazards and not as fine lines between safe and dangerous concentrations.

EFFECTS OF A SINGLE (ACUTE) OVEREXPOSURE:

INHALATION–Carbon dioxide gas is an asphyxiant with effects due to lack of oxygen. It is also

physiologically active, affecting circulation and breathing. Moderate concentrations may cause

headache, drowsiness, dizziness, stinging of the nose and throat, excitation, rapid breathing and heart

rate, excess salivation, vomiting, and unconsciousness. Lack of oxygen can kill.

SKIN CONTACT–No harm expected from vapor. Cold gas, or liquid or solid carbon dioxide may

cause severe frostbite.

SWALLOWING–An unlikely route of exposure. This product is a gas at normal temperature and

pressure.

EYE CONTACT–No harm expected from vapor. Cold gas, or liquid or solid carbon dioxide may

cause severe frostbite.

EFFECTS OF REPEATED (CHRONIC) OVEREXPOSURE: No harm expected.

OTHER EFFECTS OF OVEREXPOSURE: Damage to retinal or ganglion cells and central nervous

system may occur.

MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: The toxicology and the

physical and chemical properties of carbon dioxide suggest that overexposure is unlikely to aggravate

existing medical conditions.

SIGNIFICANT LABORATORY DATA WITH POSSIBLE RELEVANCE TO HUMAN HEALTH

HAZARD EVALUATION: A single study has shown an increase in heart defects in rats exposed to 6%

carbon dioxide in air for 24 hours at different times during gestation. There is no evidence that carbon

dioxide is teratogenic in humans.

CARCINOGENICITY: Carbon dioxide is not listed by NTP, OSHA, or IARC.

4. First Aid Measures

INHALATION: Immediately remove to fresh air. If not breathing, give artificial respiration. If

breathing is difficult, qualified personnel may give oxygen. Call a physician.

SKIN CONTACT: For exposure to cold vapor or solid, immediately warm frostbite area with warm

water not to exceed 105°F (41°C). In case of massive exposure, remove contaminated clothing while

showering with warm water. Call a physician.

SWALLOWING: An unlikely route of exposure. This product is a gas at normal temperature and

pressure.

EYE CONTACT: For exposure to cold vapor or solid, immediately flush eyes thoroughly with warm

water for at least 15 minutes. Hold the eyelids open and away from the eyeballs to ensure that all surfaces

are flushed thoroughly. See a physician, preferably an ophthalmologist, immediately.

NOTES TO PHYSICIAN: There is no specific antidote. Treatment of overexposure should be directed

at the control of symptoms and the clinical condition of the patient.

5. Fire Fighting Measures

6. Accidental Release Measures

7. Handling and Storage

8. Exposure Controls/Personal Protection

9. Physical and Chemical Properties

10. Stability and Reactivity

11. Toxicological Information

12. Ecological Information

13. Disposal Considerations

14. Transport Information

15. Regulatory Information

16. Other Information