Product ID:ETHYLENE OXIDE
MSDS Date:Jan 24 1989
MSDS Number: EEEGW
Kit Part:=== Responsible Party ===
Company Name:MATHESON TRI-GAS, INC.
Address:959 ROUTE 46 EAST
City:PARSIPPANY
State:NJ
ZIP:07054-0624
Country:US
Info Phone Num:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
780-471-4036
Chemtrec Ind/Phone:18004249300

MATHESON TRI-GAS, INC.

WHITBY, L1N 5R9 07054-0624 ONTARIO, CANADA

Telephone: (USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)

ETHYLENE OXIDE

CAS: 75-21-8

Fraction By Weight: 99.7%

ACETALDEHYDE

CAS: 75-07-0

Fraction By Weight: <0.1%

ACETIC ACID

CAS: 64-19-7

Fraction By Weight: <0.1%

WATER

CAS: 7732-18-5

Fraction By Weight: <0.1%

Reports of Carcinogenicity:NTP:Yes IARC:Yes OSHA:Yes
Health Hazards Acute and Chronic:INHALATION: SHORT TERM EXPOSURE:
irritation, reproductive effects, lack of sense of smell, tearing,
nausea, vomiting, diarrhea, difficulty breathing, irregular
heartbeat, headache, drowsiness, symptoms of drunkenness,
disorientation, bluish skin color, lung congestion, lung damage,
kidney damage, paralysis, reproductive effects, convulsions LONG
TERM EXPOSURE: cancer SKIN CONTACT: SHORT TERM EXPOSURE: irritation
(possibly severe), allergic reactions, blisters LONG TERM EXPOSURE:
same as effects reported in short term exposure EYE CONTACT: SHORT
TERM EXPOSURE: irritation (possibly severe), frostbite, tearing
LONG TERM EXPOSURE: same as effects reported in short term exposure
INGESTION: SHORT TERM EXPOSURE: irritation (possibly severe), sore
throat, nausea, vomiting, diarrhea, stomach pain, chest pain,
headache, drowsiness, symptoms of drunkenness, bluish skin color
LONG TERM EXPOSURE: liver damage, cancer
Medical Cond Aggravated by Exposure:

First Aid: INHALATION: If adverse effects occur, remove to
uncontaminated area. Give artificial respiration if not breathing.
If breathing is difficult, oxygen should be administered by
qualified personnel. Get immediate medical attention. SKIN CONTACT:
If frostbite or freezing occur, immediately flush with plenty of
lukewarm water (105-115 F; 41-46 C). DO NOT USE HOT WATER. If warm
water is not available, gently wrap affected parts in blankets. Get
immediate medical attention. EYE CONTACT: Wash eyes immediately
with large amounts of water, occasionally lifting upper and lower
lids, until no evidence of chemical remains. Get medical attention
immediately. INGESTION: Contact local poison control center or
physician immediately. Never make an unconscious person vomit or
drink fluids. When vomiting occurs, keep head lower than hips to
help prevent aspiration. If person is unconscious, turn head to
side. Get medical attention immediately. NOTE TO PHYSICIAN: For
inhalation, consider oxygen. For ingestion, consider gastric
lavage and activated charcoal slurry.

Flash Point:-20 F (-29 C) (CC)
Autoignition Temp:804 F (429 C)
Lower Limits:3%
Upper Limits:100%
Extinguishing Media:alcohol resistant foam, carbon dioxide, regular dry
chemical, water Large fires: Use alcohol-resistant foam or flood
with fine water spray.
Fire Fighting Procedures:Let burn unless leak can be stopped
immediately. Move container from fire area if it can be done
without risk. Fight large fires from a protected location or safe
distance. Stay away from the ends of tanks. For fires in cargo or
storage area: Cool containers with water from unmanned hose holder
or monitor nozzles until well after fire is out. If this is
impossible then take the following precautions: Keep unnecessary
people away, isolate hazard area and deny entry. Let the fire burn.
Withdraw immediately in case of rising sound from venting safety
device or any discoloration of tanks due to fire. For tank, rail
car or tank truck, evacuation radius: 1600 meters (1 mile). Do not
attempt to extinguish fire unless flow of material can be stopped
first. Flood with fine water spray. Do not scatter spilled material
with high-pressure water streams. Apply water from a protected
location or from a safe distance. Cool containers with water spray
until well after the fire i out. Avoid inhalation of material or
combustion by-products. Stay upwind and keep out of low areas.
Evacuate if fire gets out of control or containers are directly
exposed to fire. Evacuation radius: 1600 meters (1 mile). Water may
be ineffective.
Unusual Fire/Explosion Hazard:Severe fire hazard. The vapor is heavier
than air. Vapors or gases may ignite at distant ignition sources
and flash back. Vapor/air mixtures are explosive.

Neutralizing Agent:

Handling and Storage Precautions:Store and handle in accordance with
all current regulations and standards. Subject to storage
regulations: U.S. OSHA 29 CFR 1910.106. Protect from physical
damage. Store below 30 C. Store outside or in a detached building.
Avoid contact with light. Store in a cool, dry place. Use diking
sufficient to contain total contents plus 10%. Store with flammable
liquids. Keep separated from incompatible substances. Grounding and
bonding required. Keep separated from incompatible substances.
Notify State Emergency Response Commission for storage or use at
amounts greater than or equal to the TPQ (U.S. EPA SARA Section
302). SARA Section 303 requires facilities storing a material with
a TPQ to participate in local emergency response planning (U.S. EPA
40 CFR 355.30).
Other Precautions:

Respiratory Protection:The following respirators and maximum use
concentrations are drawn from NIOSH and/or OSHA. 50 ppm Any
air-purifying respirator with a full facepiece and a canister
providing protection against this substance. 2000 ppm Any
supplied-air respirator with a full facepiece that is operated in a
pressure-demand or other positive-pressure mode. Any supplied-air
respirator operated in a continuous-flow mode. For Unknown
Concentrations or Immediately Dangerous to Life or Health - Any
self-contained breathing apparatus that has a full facepiece and is
operated in a pressure-demand or other positive-pressure mode. Any
supplied-air respirator with full facepiece and operated in a
pressure-demand or other positive-pressure mode in combination with
a separate escape supply. Escape - Any air-purifying respirator
with a full facepiece and a canister providing protection against
this substance. Any supplied-air respirator with a full facepiece
that is operated in a pressure-demand or other positive-pressure
mode. Any supplied-air respirator operated in a continuous-flow
mode. Any self-contained breathing apparatus that has a full
facepiece and is operated in a pressure-demand or other
positive-pressure mode. Any supplied-air respirator with a full
facepiece that is operated in a pressure-demand or other
positive-pressure mode.
Ventilation:Provide local exhaust or process enclosure ventilation
system. Ensure compliance with applicable exposure limits.
Protective Gloves:For the gas: Wear appropriate chemical resistant
gloves. For the liquid: Wear insulated gloves. OSHA REGULATED
SUBSTANCES: U.S. OSHA 29 CFR 1910.1047.
Eye Protection:Wear splash resistant safety goggles with a faceshield.
Provide an emergency eye wash fountain and quick drench shower in
the immediate work area.
Other Protective Equipment:For the gas: Wear appropriate chemical
resistant clothing. For the liquid: Wear appropriate protective,
cold insulating clothing. Wear appropriate chemical resistant
clothing.
Supplemental Safety and Health
ETHYLENE OXIDE: 1 ppm OSHA TWA 5 ppm OSHA excursion limit 15 minute(s)
0.5 ppm OSHA action level 1 ppm ACGIH TWA 0.1 ppm (0.18 mg/m3)
NIOSH recommended TWA 10 hour(s) (not to exceed) 5 ppm (9 mg/m3)
NIOSH recommended ceiling 10 minute(s)

Boiling Pt:55 F (13 C)
Melt/Freeze Pt:-168 F (-111 C)
Vapor Pres:1095 mmHg @ 20 C
Vapor Density:1.5
Spec Gravity:0.8824 @ 10 C
pH:Not applicable
Evaporation Rate & Reference:Not applicable
Solubility in Water:soluble
Appearance and Odor:PHYSICAL STATE:gas COLOR:colorless ODOR:sweet odor
Corrosion Rate:

Stability Indicator/Materials to Avoid:May decompose explosively when
heated above 427 C.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Containers may rupture or explode if exposed
to heat.
Hazardous Decomposition Products:Thermal decomposition products: oxides
of carbon Thermal decomposition products: oxides of carbon
Conditions to Avoid Polymerization:May polymerize violently or
explosively. May polymerize when heated. Avoid contact with
incompatible materials.

Waste Disposal Methods:Subject to disposal regulations: U.S. EPA 40 CFR
262. Hazardous Waste Number(s): U115. Dispose in accordance with
all applicable regulations.

Toxicological Information:ETHYLENE OXIDE: IRRITATION DATA: 1 percent/7
second(s) skin-human; 18 mg/6 hour(s) eyes-rabbit moderate TOXICITY
DATA: 800 ppm/4 hour(s) inhalation-rat LC50; 72 mg/kg oral-rat LD50
CARCINOGEN STATUS: OSHA: Carcinogen; NTP: Known Human Carcinogen;
IARC: Human Limited Evidence, Animal Sufficient Evidence, Group 1;
ACGIH: A2 -Suspected Human Carcinogen LOCAL EFFECTS: Irritant:
inhalation Corrosive: skin, eye ACUTE TOXICITY LEVEL: Toxic:
inhalation, ingestion TARGET ORGANS: immune system (sensitizer),
central nervous system TUMORIGENIC DATA: Available. MUTAGENIC DATA:
Available. REPRODUCTIVE EFFECTS DATA: Available. ADDITIONAL DATA:
Alcohol may enhance the toxic effects.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:ECOTOXICITY DATA: FISH TOXICITY: 84000 ug/L 96 hour(s) LC50
(Mortality) Fathead minnow (Pimephales promelas) INVERTEBRATE
TOXICITY: 490000 ug/L 48 hour(s) LC50 (Mortality) Brine shrimp
(Artemia sp)

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Ethylene oxide or Ethylene oxide with nitrogen up to a total
pressure of 1MPa (10-bar) at 50 degrees C ID NUMBER: UN1040 HAZARD
CLASS OR DIVISION: 2.3 LABELING REQUIREMENTS: Poison gas; Flammable
gas QUANTITY LIMITATIONS: PASSENGER AIRCRAFT OR RAILCAR: Forbidden
CARGO AIRCRAFT ONLY: 25 kg

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): ETHYLENE OXIDE: 1000LBSTPQ
SARA TITLE III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR
355.40): ETHYLENE OXIDE: 10LBSRQ SARA TITLE III SARA SECTIONS
311/312 HAZARDOUS CATEGORIES (40 CFR 370.21): ACUTE: Yes
CHRONIC: Yes FIRE: Yes REACTIVE: Yes SUDDEN RELEASE: Yes SARA
TITLE III SECTION 313 (40 CFR 372.65): ETHYLENE OXIDE
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): ETHYLENE OXIDE: 10LBSRQ OSHA PROCESS
SAFETY (29CFR1910.119): ETHYLENE OXIDE: 5000LBSTQ
State Regulatory Information: California Proposition 65: Known to the
state of California to cause the following: ETHYLENE OXIDE Cancer
(Jul 01, 1987) Female reproductive toxicity (Feb 27, 1987)
Acetaldehyde Cancer (Apr 01, 1988)