MATERIAL SAFETY DATA SHEET
PRODUCT NAME: CO2/H2 MIXTURE
1. Chemical Product and Company Identification
BOC Gases, BOC Gases,
Division of Division of
The BOC Group, Inc. BOC Canada Limited
575 Mountain Avenue 5975 Falbourne Street, Unit 2
Murray Hill, NJ 07974 Mississauga, Ontario L5R 3W6
TELEPHONE NUMBER: (908)464-8100 TELEPHONE NUMBER: (905)501-1700
24-HOUR EMERGENCY TELEPHONE NUMBER: 24-HOUR EMERGENCY TELEPHONE NUMBER:
CHEMTREC (800)424-9300 (905)501-0802
EMERGENCY RESPONSE PLAN NO: 20101
PRODUCT NAME: CO2/H2 MIXTURE
CHEMICAL NAME: Hydrogen in Carbon Dioxide
COMMON NAMES/SYNONYMS: None
TDG(CANADA) CLASSIFICATION: 2.2
WHMIS CLASSIFICATION: A, D2B
PREPARED BY: Loss Control (908)464-8100/(905)501-1700
PREPARATION DATE: 6/1/96
REVIEW DATES: 6/25/96
2. Composition, Information on Ingredients
PEL-OSHA1 TLV-ACGIH2
INGREDIENT % VOLUME LD50 or LC50
Route/Species
Hydrogen < 8.8 Simple Asphyxiant Simple Asphyxiant Not Applicable
FORMULA: H2
CAS: 1333-74-0
RTECS #: MW8900000
Carbon Dioxide 91.2 -100.0 5000 ppm TWA 5000 ppm TWA Not Available
FORMULA: CO2 30,000 ppm STEL
CAS: 124-38-9
RTECS #: FF6400000
1
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
2
As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical Agents
3. Hazards Identification
EMERGENCY OVERVIEW
Oxygen levels below 19.5% may cause asphyxia. Carbon dioxide exposure can cause nausea and
respiratory problems. High concentrations may cause vasodilation leading to circulatory collapse.
Nonflammable.
ROUTE OF ENTRY:
Skin Contact Skin Absorption Eye Contact Inhalation Ingestion
No No No Yes No
MSDS: G-281
Revised: 6/25/96 Page 1 of 6
PRODUCT NAME: C02/H2 MIXTURE
HEALTH EFFECTS:
Exposure Limits Irritant Sensitization
Yes No No
Teratogen Reproductive Hazard Mutagen
No No No
Synergistic Effects
None reported
Carcinogenicity: -- NTP: No IARC: No OSHA: No
EYE EFFECTS:
None.
SKIN EFFECTS:
None.
INGESTION EFFECTS:
None. Ingestion is unlikely since product is a gas at room temperature.
INHALATION EFFECTS:
Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations causes rapid
circulatory insufficiency leading to coma and death. Asphyxiation is likely to occur before the effects of carbon
dioxide overexposure. Chronic, harmful effects are not known from repeated inhalation of low concentrations.
Low concentrations of carbon dioxide cause increased respiration and headache.
Hydrogen is a simple asphyxiant. This mixture may displace oxygen if released in a confined space. Effects of
oxygen deficiency may include: rapid breathing, diminished mental alertness, impaired muscular coordination,
faulty judgement, depression of all sensations, emotional instability, and fatigue. As asphyxiation progresses,
nausea, vomiting, prostration, and loss of consciousness may result, eventually leading to convulsions, coma,
and death.
Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental
animals.
NFPA HAZARD CODES HMIS HAZARD CODES RATINGS SYSTEM
Health: 1 Health: 1 0 = No Hazard
Flammability: 0 Flammability: 0 1 = Slight Hazard
Reactivity: 0 Reactivity: 0 2 = Moderate Hazard
3 = Serious Hazard
4 = Severe Hazard
4. First Aid Measures
EYES:
None required.
SKIN:
None required.
MSDS: G-281
Revised: 6/25/96 Page 2 of 6
PRODUCT NAME: C02/H2 MIXTURE
INGESTION:
None required. Ingestion is unlikely since product is a gas at room temperature.
INHALATION:
PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO CARBON
DIOXIDE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING
APPARATUS. Conscious persons should be assisted to an uncontaminated area and inhale fresh air. Quick
removal from the contaminated area is most important. Unconscious persons should be moved to an
uncontaminated area, given mouth-to-mouth resuscitation and supplemental oxygen. Further treatment should
be symptomatic and supportive.
5. Fire Fighting Measures
Conditions of Flammability: Nonflammable
Flash point: Method: Autoignition
Not Applicable Not Applicable Temperature: Not Applicable
LEL(%): 4.0 (Hydrogen) UEL(%): 74.2 (Hydrogen)
Hazardous combustion products: None
Sensitivity to mechanical shock: None
Sensitivity to static discharge: None
FIRE AND EXPLOSION HAZARDS:
None. Nonflammable.
EXTINGUISHING MEDIA:
Use media appropriate for surrounding materials.
FIRE FIGHTING INSTRUCTIONS:
None required. Use media suitable for surrounding fire.
6. Accidental Release Measures
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user鈥檚 equipment,
be certain to purge piping with inert gas prior to attempting repairs. If leak is in container or container valve,
contact the appropriate emergency telephone number listed in Section 1 or call your closest BOC location.
7. Handling and Storage
Electrical Classification:
Non-Hazardous.
This gas mixture is noncorrosive and may be used with all common structural materials.
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured with
valve outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder
movement. Use a pressure reducing regulator when connecting cylinder to lower pressure (<3000 psig) piping
or systems. Do not heat cylinder by any means to increase the discharge rate of product from the cylinder. Use
a check valve or trap in the discharge line to prevent hazardous back flow into the system.
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area away from heavily trafficked
areas and emergency exits. Do not allow the temperature where cylinders are stored to exceed 130oF (54oC).
MSDS: G-281
Revised: 6/25/96 Page 3 of 6
PRODUCT NAME: C02/H2 MIXTURE
Cylinders should be stored upright and firmly secured to prevent falling or being knocked over. Full and empty
cylinders should be segregated. Use a "first in-first out" inventory system to prevent full cylinders being stored
for excessive periods of time.
For additional storage recommendations, consult Compressed Gas Association鈥檚 Pamphlet P-1.
Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed space such
as a car trunk, van or station wagon. A leak can result in a fire, explosion, asphyxiation or a toxic exposure.
8. Exposure Controls, Personal Protection
EXPOSURE LIMITS1:
PEL-OSHA2 TLV-ACGIH3
INGREDIENT % VOLUME LD50 or LC50
Route/Species
Hydrogen < 8.8 Simple Asphyxiant Simple Asphyxiant Not Applicable
FORMULA: H2
CAS: 1333-74-0
RTECS #: MW8900000
Carbon Dioxide 91.2-100 5000 ppm TWA 5000 ppm TWA Not Available
FORMULA: CO2 30,000 ppm STEL
CAS: 124-38-9
RTECS #: FF6400000
1
Refer to individual state or provincial regulations, as applicable, for limits which may be more stringent than those listed here.
2
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
3
As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical Agents
IDLH (Carbon Dioxide): 50,000 ppm
ENGINEERING CONTROLS:
Use local exhaust to maintain the oxygen level in the air to between 19.5 and 24.5%, and the the carbon dioxide
level below the TLV.
EYE/FACE PROTECTION:
Safety goggles or glasses, appropriate for the job, may be used as necessary for other aspects of the job.
SKIN PROTECTION:
Protective gloves, made of any suitable material appropriate for the job, may be used if necessary.
RESPIRATORY PROTECTION:
Positive pressure air line with full-face mask and escape bottle or self-contained breathing apparatus, should be
available for emergency use.
OTHER/GENERAL PROTECTION:
Safety shoes, safety shower if necessary for the job.
MSDS: G-281
Revised: 6/25/96 Page 4 of 6
PRODUCT NAME: C02/H2 MIXTURE
9. Physical and Chemical Properties
PARAMETER VALUE UNITS
Physical state (gas, liquid, solid) : Gas
Vapor pressure : Not Available
Vapor density (Air=1) : Not Available
Evaporation point : Not Available
Boiling point : Not Available
Freezing point : Not Available
pH : Not Available
Specific gravity : Not Available
Oil/water partition coefficient : Not Available
Solubility (H20) : Slightly soluble
Odor threshold : Not Applicable
Odor and appearance : Odorless, colorless gas.
10. Stability and Reactivity
STABILITY:
Stable.
INCOMPATIBILE MATERIALS:
None.
HAZARDOUS DECOMPOSITION PRODUCTS:
None.
HAZARDOUS POLYMERIZATION:
Will not occur.
11. Toxicological Information
REPRODUCTIVE:
Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental
animals.
Exposure of female rats to 60,000 ppm carbon dioxide for 24 hours has produced toxic effects to the embryo and
fetus in pregnant rats. Toxic effects to the reproductive system have been observed in other mammalian species
at similar concentrations.
OTHER:
Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations causes rapid
circulatory insufficiency leading to coma and death. Chronic, harmful effects are not known from repeated
inhalation of low (3 to 5 molar %) concentrations.
12. Ecological Information
No data given.
MSDS: G-281
Revised: 6/25/96 Page 5 of 6
PRODUCT NAME: C02/H2 MIXTURE
13. Disposal Considerations
Do not attempt to dispose of residual waste or unused quantities. Return in the shipping container PROPERLY
LABELED, WITH ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP
IN PLACE to BOC Gases or authorized distributor for proper disposal.
14. Transport Information
PARAMETER United States DOT Canada TDG
Compressed gases, n.o.s. Compressed gases, n.o.s.
PROPER SHIPPING NAME:
(Carbon Dioxide, Hydrogen) (Carbon Dioxide, Hydrogen)
2.2 2.2
HAZARD CLASS:
UN 1956 UN 1956
IDENTIFICATION NUMBER:
NONFLAMMABLE GAS NONFLAMMABLE GAS
SHIPPING LABEL:
15. Regulatory Information
SARA TITLE III NOTIFICATIONS AND INFORMATION
SARA TITLE III HAZARD CLASSES:
Acute Health Hazard
Sudden Release of Pressure Hazard
SARA TITLE III - SECTION 313 SUPPLIER NOTIFICATION:
This product does NOT contain any ingredients which are regulated on the U.S. EPA List of Toxic Chemicals
(40 CFR 372), and is therefore not subject to release reporting under Section 313 of EPCRA/SARA Title III.
16. Other Information
Compressed gas cylinders shall not be refilled without the express written permission of the owner. Shipment of
a compressed gas cylinder which has not been filled by the owner or with his/her (written) consent is a violation
of transportation regulations.
DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Although reasonable care has been taken in the preparation of this document, we extend no warranties and make
no representations as to the accuracy or completeness of the information contained herein, and assume no
responsibility regarding the suitability of this information for the user鈥檚 intended purposes or for the
consequences of its use. Each individual should make a determination as to the suitability of the information for
their particular purpose(s).
MSDS: G-281
Revised: 6/25/96 Page 6 of 6
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