Material Safety Data Sheet
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
Section 1. Chemical product and company identification
: Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
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
: 007332
MSDS#
Date of : 6/21/2007.
Preparation/Revision
: 1-866-734-3438
In case of emergency
Section 2. Hazards identification
: Liquid.
Physical state
: Warning!
Emergency overview
HARMFUL IF SWALLOWED.
CONTAINS MATERIAL WHICH CAUSES DAMAGE TO THE FOLLOWING ORGANS:
RESPIRATORY TRACT, SKIN, CENTRAL NERVOUS SYSTEM, EYE, LENS OR
CORNEA.
SUSPECT CANCER HAZARD
CONTAINS MATERIAL WHICH MAY CAUSE CANCER
FLAMMABLE LIQUID AND VAPOR.
VAPOR MAY CAUSE FLASH FIRE.
CONTENTS UNDER PRESSURE.
Do not ingest. Keep away from heat, sparks and flame. Keep container closed. Use
only with adequate ventilation. Wash thoroughly after handling. Risk of cancer depends
on duration and level of exposure.
Potential acute health effects
Irritating to eyes.
Eyes :
Irritating to skin.
Skin :
Irritating to respiratory system.
Inhalation :
Toxic if swallowed.
:
Ingestion
CARCINOGENIC EFFECTS Classified A3 (Proven for animal.) by ACGIH, 2B
:
Potential chronic health :
(Possible for human.) by IARC [ethylbenzene]. Classified A3 (Proven for animal.) by
effects
ACGIH, 2B (Possible for human.) by IARC [propylene oxide]. Classified 2 (Reasonably
Anticipated To Be Human Carcinogens.) by NTP, 2 (Suspected for human.) by European
Union [propylene oxide].
MUTAGENIC EFFECTS Classified 2 by European Union [propylene oxide].
:
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
United States
Exposure limits
ethylbenzene 100-41-4 95 - 99 ACGIH TLV (United States, 1/2005). Notes:
2002 Adoption. Substances for which there
is a Biological Exposure Index or Indices
STEL: 125 ppm 15 minute(s). Form: All
forms
TWA: 100 ppm 8 hour(s). Form: All forms
NIOSH REL (United States, 12/2001).
STEL: 545 mg/m 3 15 minute(s). Form: All
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
forms
STEL: 125 ppm 15 minute(s). Form: All
forms
TWA: 435 mg/m 3 10 hour(s). Form: All forms
TWA: 100 ppm 10 hour(s). Form: All forms
OSHA PEL (United States, 8/1997).
TWA: 435 mg/m 3 8 hour(s). Form: All forms
TWA: 100 ppm 8 hour(s). Form: All forms
propylene oxide 75-56-9 0.0001 - 5 ACGIH TLV (United States, 1/2005). Notes:
Substance identified by other sources as a
suspected or confirmed human
carcinogen. 1996 Adoption Substances for
which the TLV is higher than the OSHA
Permissible Exposure Limit (PEL) and/or
the NIOSH Recommended Exposure Limit
(REL). See CFR 58(124) :36338-33351, June
30, 1993, for revised OSHA PEL. Refers to
Appendix A -- Carcinogens.
TWA: 2 ppm 8 hour(s). Form: All forms
OSHA PEL (United States, 8/1997).
TWA: 240 mg/m 3 8 hour(s). Form: All forms
TWA: 100 ppm 8 hour(s). Form: All forms
Section 4. First aid measures
: 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.
: 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 immediately.
Section 5. Fire fighting measures
Flammable.
Flammability of the product :
The lowest known value is 431.85 to 459.85癈 (809.3 to 859.7癋) (ethylbenzene).
Auto-ignition temperature :
The lowest known value is Closed cup: -38.15癈 (-36.7癋). (propylene oxide)
Flash point :
The greatest known range is Lower: 2.1% Upper: 21.5% (propylene oxide)
Flammable limits :
These products are carbon oxides (CO, CO 2).
Products of combustion :
In case of fire, use water spray (fog), foam, dry chemicals, or CO 2.
Fire fighting media and :
instructions
Flammable liquid and vapor. Vapor may cause flash fire. Vapors may accumulate in
low or confined areas, travel considerable distance to source of ignition and flash back.
Runoff to sewer may create fire or explosion 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
Section 6. Accidental release measures
: Immediately contact emergency personnel. Eliminate all ignition sources. Keep
Personal precautions
unnecessary personnel away. Use suitable protective equipment (Section 8). Do not
touch or walk through spilled material.
Environmental precautions : Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains
and sewers.
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
: If emergency personnel are unavailable, contain spilled material. For small spills add
Methods for cleaning up
absorbent (soil may be used in the absence of other suitable materials) and use a non-
sparking or explosion proof means to transfer material to a sealed, appropriate container
for disposal. For large spills dike spilled material or otherwise contain material to ensure
runoff does not reach a waterway. Place spilled material in an appropriate container for
disposal.
Section 7. Handling and storage
: Do not ingest. Keep container closed. Use only with adequate ventilation. Keep away
Handling
from heat, sparks and flame. To avoid fire or explosion, dissipate static electricity during
transfer by grounding and bonding containers and equipment before transferring
material. Use explosion-proof electrical (ventilating, lighting and material handling)
equipment. Wash thoroughly after handling.
Extremely hazardous liquid and vapor under pressure.
: Store in a segregated and approved area. Keep container in a cool, well-ventilated area.
Storage
Keep container tightly closed and sealed until ready for use. Avoid all possible sources
of ignition (spark or flame).
Section 8. Exposure Controls, Personal Protection
: Provide exhaust ventilation or other engineering controls to keep the airborne
Engineering controls
concentrations of vapors below their respective occupational exposure limits. Ensure
that eyewash stations and safety showers are proximal to the work-station location.
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.
: 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 : Splash goggles. Full suit. Vapor respirator. Boots. Gloves. A self-contained breathing
apparatus should be used to avoid inhalation of the product. Suggested protective
of a large spill
clothing might not be sufficient; consult a specialist BEFORE handling this product.
Product name Exposure limits
United States
ethylbenzene ACGIH TLV (United States, 1/2005). Notes: 2002 Adoption.
Substances for which there is a Biological Exposure Index or
Indices
STEL: 125 ppm 15 minute(s). Form: All forms
TWA: 100 ppm 8 hour(s). Form: All forms
NIOSH REL (United States, 12/2001).
STEL: 545 mg/m 3 15 minute(s). Form: All forms
STEL: 125 ppm 15 minute(s). Form: All forms
TWA: 435 mg/m 3 10 hour(s). Form: All forms
TWA: 100 ppm 10 hour(s). Form: All forms
OSHA PEL (United States, 8/1997).
TWA: 435 mg/m 3 8 hour(s). Form: All forms
TWA: 100 ppm 8 hour(s). Form: All forms
propylene oxide ACGIH TLV (United States, 1/2005). Notes: Substance identified by
other sources as a suspected or confirmed human carcinogen.
1996 Adoption Substances for which the TLV is higher than the
OSHA Permissible Exposure Limit (PEL) and/or the NIOSH
Recommended Exposure Limit (REL). See CFR 58(124) :36338-
33351, June 30, 1993, for revised OSHA PEL. Refers to Appendix A
-- Carcinogens.
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
TWA: 2 ppm 8 hour(s). Form: All forms
OSHA PEL (United States, 8/1997).
TWA: 240 mg/m 3 8 hour(s). Form: All forms
TWA: 100 ppm 8 hour(s). Form: All forms
Section 9. Physical and chemical properties
: Liquid.
Physical state
Boiling/condensation point : The lowest known value is 34.45癈 (94癋) (propylene oxide). Weighted average:
131.17癈 (268.1癋)
: May start to solidify at -95癈 (-139癋) based on data for: ethylbenzene. Weighted
Melting/freezing point
average: -95.83癈 (-140.5癋)
: The lowest known value is 209.2癈 (408.6癋) (propylene oxide).
Critical temperature
: Weighted average: 0.87 (Water = 1)
Specific gravity
: The highest known value is 3.7 (Air = 1) (ethylbenzene). Weighted average: 3.62 (Air
Vapor density
= 1)
: The highest known value is 8.79 (propylene oxide) Weighted average: 1.22compared to
Evaporation rate
Butyl acetate.
Section 10. Stability and reactivity
: The product is stable.
Stability and reactivity
Incompatibility with various : Extremely reactive or incompatible with oxidizing agents.
substances
Section 11. Toxicological information
Ingredient name Test Result Route Species
ethylbenzene LD50 3500 mg/kg Oral Rat
propylene oxide LD50 380 mg/kg Oral Rat
LD50 440 mg/kg Oral Mouse
LD50 440 mg/kg Oral Mammal
LC50 8000 ppm (1 Inhalation Rat
hour(s))
LC50 3480 ppm (1 Inhalation Mouse
hour(s))
Chronic effects on humans : CARCINOGENIC EFFECTS Classified A3 (Proven for animal.) by ACGIH, 2B
:
(Possible for human.) by IARC [ethylbenzene]. Classified A3 (Proven for animal.) by
ACGIH, 2B (Possible for human.) by IARC [propylene oxide]. Classified 2 (Reasonably
Anticipated To Be Human Carcinogens.) by NTP, 2 (Suspected for human.) by European
Union [propylene oxide].
MUTAGENIC EFFECTS Classified 2 by European Union [propylene oxide].
:
Contains material which causes damage to the following organs: upper respiratory tract,
skin, central nervous system (CNS), eye, lens or cornea.
: 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 may 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
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
ethylbenzene Daphnia magna (EC50) 48 hour(s) 2.93 mg/l
Daphnia magna (EC50) 48 hour(s) 2.97 mg/l
Selenastrum capricornutum 48 hour(s) 7.2 mg/l
(EC50)
Oncorhynchus mykiss (LC50) 96 hour(s) 4.2 mg/l
Pimephales promelas (LC50) 96 hour(s) 9.09 mg/l
Poecilia reticulata (LC50) 96 hour(s) 9.6 mg/l
propylene oxide Lepomis macrochirus (LC50) 96 hour(s) 215 mg/l
: These products are carbon oxides (CO, CO 2) and water.
Products of degradation
: The products of degradation are less toxic than the product itself.
Toxicity of the products of
biodegradation
Section 13. Disposal considerations
: The generation of waste should be avoided or minimized wherever possible. Avoid
Waste disposal
dispersal of spilled material and runoff and contact with soil, waterways, drains and
sewers. Disposal of this product, solutions and any by-products should at all times
comply with the requirements of environmental protection and waste disposal legislation
and any regional local authority requirements.
Consult your local or regional authorities.
Section 14. Transport information
Regulatory UN number Proper shipping Class Packing group Label Additional
information name information
DOT Classification UN3161 Liquefied gas, 2.1 - -
flammable, n.o.s. FLAMMABLE GAS
2
TDG Classification UN3161 Liquefied gas, 2.1 - Explosive
flammable, n.o.s. Limit and
Limited
2
Quantity
Index
0.125
ERAP Index
3000
Passenger
Carrying Ship
Index
Forbidden
Passenger
Carrying
Road or Rail
Index
Forbidden
UN3161 Liquefied gas, 2.1 - -
Mexico
flammable, n.o.s.
Classification FLAMMABLE GAS
2
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
Section 15. Regulatory information
United States
: Flammable liquid
HCS Classification
Toxic material
Carcinogen
Target organ effects
: TSCA 8(b) inventory: ethylbenzene; propylene oxide
U.S. Federal regulations
SARA 302/304/311/312 extremely hazardous substances: propylene oxide
SARA 302/304 emergency planning and notification: propylene oxide
SARA 302/304/311/312 hazardous chemicals: ethylbenzene; propylene oxide
SARA 311/312 MSDS distribution - chemical inventory - hazard identification:
ethylbenzene: Fire hazard, Immediate (Acute) Health Hazard, Delayed (Chronic) Health
Hazard; propylene oxide: Fire hazard, reactive, Immediate (Acute) Health Hazard,
Delayed (Chronic) Health Hazard
Clean Water Act (CWA) 307: ethylbenzene
Clean Water Act (CWA) 311: ethylbenzene
Clean air act (CAA) 112 accidental release prevention: propylene oxide
Clean air act (CAA) 112 regulated flammable substances: No products were found.
Clean air act (CAA) 112 regulated toxic substances: propylene oxide
SARA 313
Product name CAS number Concentration
: ethylbenzene 100-41-4 95 - 99
Form R - Reporting
propylene oxide 75-56-9 0.0001 - 5
requirements
: ethylbenzene 100-41-4 95 - 99
Supplier notification
propylene oxide 75-56-9 0.0001 - 5
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.
: Pennsylvania RTK: ethylbenzene: (environmental hazard, generic environmental hazard)
State regulations
; propylene oxide: (special hazard, environmental hazard, generic environmental hazard)
Massachusetts RTK: ethylbenzene; propylene oxide
New Jersey: ethylbenzene; propylene oxide
WARNING: This product contains a chemical known to the State of California to cause
cancer.
Ingredient name Cancer Reproductive No significant risk Maximum
level acceptable dosage
level
ethylbenzene Yes. No. No. No.
propylene oxide Yes. No. No. No.
Canada
: Class B-1: Flammable gas.
WHMIS (Canada)
Class D-1A: Material causing immediate and serious toxic effects (VERY TOXIC).
Class D-2A: Material causing other toxic effects (VERY TOXIC).
Class D-2B: Material causing other toxic effects (TOXIC).
CEPA DSL: ethylbenzene; propylene oxide
Section 16. Other information
: HARMFUL IF SWALLOWED.
Label Requirements
CONTAINS MATERIAL WHICH CAUSES DAMAGE TO THE FOLLOWING ORGANS:
RESPIRATORY TRACT, SKIN, CENTRAL NERVOUS SYSTEM, EYE, LENS OR
CORNEA.
SUSPECT CANCER HAZARD
CONTAINS MATERIAL WHICH MAY CAUSE CANCER
FLAMMABLE LIQUID AND VAPOR.
VAPOR MAY CAUSE FLASH FIRE.
CONTENTS UNDER PRESSURE.
Flammable Liquid Mixture: Ethyl Benzene 95-99% / Propylene Oxide 1ppm-5%
* 2
Hazardous Material : Health
Information System (U.S.A.) 3
Fire hazard
0
Reactivity
C
Personal protection
National Fire Protection :
Flammability
3
Association (U.S.A.)
2 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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