Material Safety Data Sheet
Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl
Chloride
Section 1. Chemical product and company identification
: Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
Product Name
: AIRGAS INC., on behalf of its subsidiaries
Supplier
259 North Radnor-Chester Road
Suite 100
Radnor, PA 19087-5283
1-610-687-5253
: Synthetic/Analytical chemistry.
Product use
: 007542
MSDS#
: 9/21/2007.
Date of
Preparation/Revision
: 1-866-734-3438
In case of emergency
Section 2. Hazards identification
: Gas.
Physical state
: Warning!
Emergency overview
CANCER HAZARD
CONTAINS MATERIAL WHICH CAN CAUSE CANCER
CONTENTS UNDER PRESSURE.
Do not puncture or incinerate container. Risk of cancer depends on duration and level of
exposure.
Contact with rapidly expanding gases can cause frostbite.
: Inhalation
Routes of entry
Potential acute health effects
No known significant effects or critical hazards.
Eyes :
No known significant effects or critical hazards.
Skin :
Acts as a simple asphyxiant.
Inhalation :
Ingestion is not a normal route of exposure for gases
:
Ingestion
CARCINOGENIC EFFECTS Classified A1 (Confirmed for human.) by ACGIH, 1
:
Potential chronic health :
(Proven for human.) by IARC, 1 (Known To Be Human Carcinogens.) by NTP, +
effects
(Proven.) by OSHA, + (Proven.) by NIOSH, 1 (Proven for human.) by European Union
[vinyl chloride]. Classified + (Proven.) by NIOSH [chloromethane]. Classified 3 (Possible
for human.) by European Union [chloromethane]. Classified A4 (Not classifiable for
human or animal.) by ACGIH, 3 (Not classifiable for human.) by IARC [chloromethane].
Classified A3 (Proven for animal.) by ACGIH, 2B (Possible for human.) by IARC, 3
(Possible for human.) by European Union [acetaldehyde]. Classified 2 (Reasonably
Anticipated To Be Human Carcinogens.) by NTP [acetaldehyde].
MUTAGENIC EFFECTS Not available.
:
TERATOGENIC EFFECTS Not available.
:
Repeated exposure to a highly toxic material may produce general deterioration of health
Medical conditions :
aggravated by overexposure by an accumulation in one or many human organs.
See toxicological Information (section 11)
Section 3. Composition, Information on Ingredients
Name CAS number % Volume Exposure limits
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Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
Helium 7440-59-7 97 - 99
Vinyl Chloride (Chloroethylene) 75-01-4 0.0001 - 0.9 ACGIH TLV (United States, 1/2007).
TWA: 1 ppm 8 hour(s).
OSHA PEL (United States, 11/2006).
STEL: 5 ppm 15 minute(s).
TWA: 1 ppm 8 hour(s).
Methyl Chloride (R40) 74-87-3 0.005 - 0.9 ACGIH TLV (United States, 1/2007). Skin
STEL: 100 ppm 15 minute(s).
TWA: 50 ppm 8 hour(s).
OSHA PEL Z2 (United States, 11/2006).
AMP: 300 ppm 5 minute(s).
CEIL: 200 ppm
TWA: 100 ppm 8 hour(s).
ACGIH TLV (United States, 1/2007). Skin
STEL: 207 mg/m 3 15 minute(s).
TWA: 103 mg/m 3 8 hour(s).
Acetaldehyde 75-07-0 0.0025 - 0.9 ACGIH TLV (United States, 1/2007).
CEIL: 25 ppm
OSHA PEL (United States, 11/2006).
TWA: 200 ppm 8 hour(s).
ACGIH TLV (United States, 1/2007).
CEIL: 45 mg/m 3
OSHA PEL (United States, 11/2006).
TWA: 360 mg/m 3 8 hour(s).
Section 4. First aid measures
No action shall be taken involving any personal risk or without suitable training.If fumes are still suspected to be present,
the rescuer should wear an appropriate mask or a self-contained breathing apparatus.It may be dangerous to the person
providing aid to give mouth-to-mouth resuscitation.
: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes.
Eye contact
Get medical attention if irritation occurs.
: In case of contact, immediately flush skin with plenty of water. Remove contaminated
Skin contact
clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Get medical attention.
: Try to warm up the frozen tissues and seek medical attention.
Frostbite
: If inhaled, remove to fresh air. If breathing is difficult, give oxygen. If not breathing, give
Inhalation
artificial respiration. Get medical attention.
: Do NOT induce vomiting unless directed to do so by medical personnel. Never give
Ingestion
anything by mouth to an unconscious person. Get medical attention if symptoms
appear.
Section 5. Fire fighting measures
Flammability of the product : Non-flammable.
: Use an extinguishing agent suitable for surrounding fires.
Fire fighting media and
instructions
If involved in fire, shut off flow immediately if it can be done without risk. Apply water
from a safe distance to cool container and protect surrounding area.
No specific hazard.
: Fire fighters should wear appropriate protective equipment and self-contained breathing
Special protective
apparatus (SCBA) with a full facepiece operated in positive pressure mode.
equipment for fire-fighters
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Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
Section 6. Accidental release measures
: Immediately contact emergency personnel. Keep unnecessary personnel away. Use
Personal precautions
suitable protective equipment (Section 8). Shut off gas supply if this can be done safely.
Isolate area until gas has dispersed.
Environmental precautions : Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains
and sewers.
Section 7. Handling and storage
: Do not puncture or incinerate container. High pressure gas. Use equipment rated for
Handling
cylinder pressure. Close valve after each use and when empty. Protect cylinders from
physical damage; do not drag, roll, slide, or drop. Use a suitable hand truck for cylinder
movement.
: Keep container tightly closed. Keep container in a cool, well-ventilated area. Cylinders
Storage
should be stored upright, with valve protection cap in place, and firmly secured to
prevent falling or being knocked over. Cylinder temperatures should not exceed 52 癈
(125 癋).
Section 8. Exposure Controls, Personal Protection
: Use only with adequate ventilation. If user operations generate dust, fumes, vapor or
Engineering controls
mist, use process enclosures, local exhaust ventilation, or other engineering controls to
keep worker exposure to airborne contaminants below any recommended or statutory
limits.
Personal protection
: Safety eyewear complying with an approved standard should be used when a risk
Eyes
assessment indicates this is necessary to avoid exposure to liquid splashes, mists or
dusts.
: Personal protective equipment for the body should be selected based on the task being
Skin
performed and the risks involved and should be approved by a specialist before handling
this product.
: Use a properly fitted, air-purifying or air-fed respirator complying with an approved
Respiratory
standard if a risk assessment indicates this is necessary.Respirator selection must be
based on known or anticipated exposure levels, the hazards of the product and the safe
working limits of the selected respirator.
The applicable standards are (US) 29 CFR 1910.134 and (Canada) Z94.4-93
: Chemical-resistant, impervious gloves or gauntlets complying with an approved standard
Hands
should be worn at all times when handling chemical products if a risk assessment
indicates this is necessary.
Personal protection in case : A self-contained breathing apparatus should be used to avoid inhalation of the product.
of a large spill
Consult local authorities for acceptable exposure limits.
Section 9. Physical and chemical properties
Not applicable.
Molecular weight :
Not applicable.
Molecular formula :
Not available.
Boiling/condensation point :
-272.2癈 (-458癋) based on data for: helium.
Melting/freezing point :
Not available.
Critical temperature :
The highest known value is 0.14 (Air = 1) (helium).
Vapor density :
Not applicable.
Specific Volume (ft3/lb) :
The only known value is 0.01 (helium).
Gas Density (lb/ft3) :
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Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
Section 10. Stability and reactivity
: The product is stable.
Stability and reactivity
Incompatibility with various : Not considered to be reactive according to our database.
substances
Section 11. Toxicological information
Ingredient name Test Result Route Species
Vinyl Chloride (Chloroethylene) LD50 500 mg/kg Oral Rat
LC50 5000 ppm (1 Inhalation Rat
hour(s))
Methyl Chloride (R40) LD50 1800 mg/kg Oral Rat
LC50 5300 mg/m 3 (4 Inhalation Rat
hour(s))
LC50 2200 ppm (6 Inhalation Mouse
hour(s))
Acetaldehyde LD50 661 mg/kg Oral Rat
LD50 1930 mg/kg Oral Rat
LD50 900 mg/kg Oral Mouse
LD50 3540 mg/kg Dermal Rabbit
: Classified A1 (Confirmed for human.) by ACGIH, 1
Chronic effects on humans : CARCINOGENIC EFFECTS
(Proven for human.) by IARC, 1 (Known To Be Human Carcinogens.) by NTP, +
(Proven.) by OSHA, + (Proven.) by NIOSH, 1 (Proven for human.) by European Union
[vinyl chloride]. Classified + (Proven.) by NIOSH [chloromethane]. Classified 3 (Possible
for human.) by European Union [chloromethane]. Classified A4 (Not classifiable for
human or animal.) by ACGIH, 3 (Not classifiable for human.) by IARC [chloromethane].
Classified A3 (Proven for animal.) by ACGIH, 2B (Possible for human.) by IARC, 3
(Possible for human.) by European Union [acetaldehyde]. Classified 2 (Reasonably
Anticipated To Be Human Carcinogens.) by NTP [acetaldehyde].
: No specific information is available in our database regarding the other toxic effects of
Other toxic effects on
this material for humans.
humans
Specific effects
: Contains material which can cause cancer. Risk of cancer depends on duration and
Carcinogenic effects
level of exposure.
: No known significant effects or critical hazards.
Mutagenic effects
: No known significant effects or critical hazards.
Reproduction toxicity
Section 12. Ecological information
Ingredient name Species Period Result
Methyl Chloride (R40) Lepomis macrochirus (LC50) 96 hour(s) 550 mg/l
Acetaldehyde Daphnia magna (EC50) 48 hour(s) 4.7 mg/l
Daphnia magna (EC50) 48 hour(s) 7 mg/l
Daphnia magna (EC50) 48 hour(s) 48.25 mg/l
Lepomis macrochirus (LC50) 96 hour(s) 2.1 mg/l
Oncorhynchus mykiss (LC50) 96 hour(s) 2.2 mg/l
Pimephales promelas (LC50) 96 hour(s) 30.8 mg/l
: The products of degradation are more toxic than the product itself.
Toxicity of the products of
biodegradation
: Not available.
Environmental fate
: No known significant effects or critical hazards.
Environmental hazards
Toxicity to the environment : Not available.
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Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
Section 13. Disposal considerations
Product removed from the cylinder must be disposed of in accordance with appropriate Federal, State, local
regulation.Return cylinders with residual product to Airgas, Inc.Do not dispose of locally.
Section 14. Transport information
Regulatory UN number Proper shipping Class Packing group Label Additional
information name information
DOT Classification UN1956 COMPRESSED GAS, 2.2 Not applicable (gas). -
N.O.S. NON-FLAMMABLE GAS
2
TDG Classification UN1956 COMPRESSED GAS, 2.2 Not applicable (gas). Explosive
N.O.S. Limit and
Limited
2
Quantity
Index
0.125
Passenger
Carrying
Road or Rail
Index
75
UN1956 COMPRESSED GAS, 2.2 Not applicable (gas). -
Mexico
N.O.S.
Classification NON-FLAMMABLE GAS
2
Section 15. Regulatory information
United States
: TSCA 8(a) PAIR: acetaldehyde
U.S. Federal regulations
TSCA 8(b) inventory: helium; vinyl chloride; chloromethane; acetaldehyde
TSCA 8(d) H and S data reporting: acetaldehyde: 1991
SARA 302/304/311/312 extremely hazardous substances: No products were found.
SARA 302/304 emergency planning and notification: No products were found.
SARA 302/304/311/312 hazardous chemicals: helium
SARA 311/312 MSDS distribution - chemical inventory - hazard identification: helium:
Sudden Release of Pressure
Clean Water Act (CWA) 307: vinyl chloride; chloromethane
Clean Water Act (CWA) 311: acetaldehyde
Clean air act (CAA) 112 accidental release prevention: vinyl chloride; chloromethane;
acetaldehyde
Clean air act (CAA) 112 regulated flammable substances: vinyl chloride; acetaldehyde
Clean air act (CAA) 112 regulated toxic substances: chloromethane
SARA 313
Product name CAS number Concentration
: Vinyl Chloride (Chloroethylene) 75-01-4 0.0001 - 0.9
Form R - Reporting
Acetaldehyde 75-07-0 0.0025 - 0.9
requirements
: Vinyl Chloride (Chloroethylene) 75-01-4 0.0001 - 0.9
Supplier notification
Acetaldehyde 75-07-0 0.0025 - 0.9
SARA 313 notifications must not be detached from the MSDS and any copying and redistribution of the MSDS shall
include copying and redistribution of the notice attached to copies of the MSDS subsequently redistributed.
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Nonflammable Gas Mixture: Acetaldehyde / Helium / Methyl Chloride / Vinyl Chloride
: Pennsylvania RTK: helium: (generic environmental hazard); vinyl chloride: (special
State regulations
hazard, environmental hazard, generic environmental hazard); chloromethane:
(environmental hazard, generic environmental hazard); acetaldehyde: (environmental
hazard, generic environmental hazard)
Massachusetts RTK: helium; vinyl chloride; chloromethane; acetaldehyde
New Jersey: helium; vinyl chloride; chloromethane; acetaldehyde
: WARNING: This product contains a chemical known to the State of California to cause
California prop. 65
cancer and birth defects or other reproductive harm.
Ingredient name Cancer Reproductive No significant risk Maximum
level acceptable dosage
level
Vinyl Chloride (Chloroethylene) Yes. No. Yes. No.
Methyl Chloride (R40) No. Yes. No. No.
Acetaldehyde Yes. No. 90 g/day (inhalation) No.
Canada
: Class A: Compressed gas.
WHMIS (Canada)
Class D-2A: Material causing other toxic effects (VERY TOXIC).
CEPA DSL: helium; vinyl chloride; chloromethane; acetaldehyde
Section 16. Other information
United States
: CANCER HAZARD
Label Requirements
CONTAINS MATERIAL WHICH CAN CAUSE CANCER
CONTENTS UNDER PRESSURE.
Canada
: Class A: Compressed gas.
Label Requirements
Class D-2A: Material causing other toxic effects (VERY TOXIC).
*1
Hazardous Material : Health
Information System (U.S.A.)
0
Fire hazard
0
Reactivity
C
Personal protection
National Fire Protection :
Flammability
0
Association (U.S.A.)
1 0
Health Instability
Special
Notice to reader
To the best of our knowledge, the information contained herein is accurate. However, neither the above named
supplier nor any of its subsidiaries assumes any liability whatsoever for the accuracy or completeness of the
information contained herein.
Final determination of suitability of any material is the sole responsibility of the user. All materials may present
unknown hazards and should be used with caution. Although certain hazards are described herein, we cannot
guarantee that these are the only hazards that exist.
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