Product ID:DIMETHYL ETHER
MSDS Date:Jan 24 1989
MSDS Number: EEEFK
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

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

DIMETHYL ETHER

CAS: 115-10-6

Fraction By Weight: 100.0%

Reports of Carcinogenicity:NTP:No IARC:No OSHA:No
Health Hazards Acute and Chronic:INHALATION: SHORT TERM EXPOSURE:
irritation, difficulty breathing, headache, drowsiness, symptoms of
drunkenness, blurred vision LONG TERM EXPOSURE: no information on
significant adverse effects SKIN CONTACT: SHORT TERM EXPOSURE:
irritation (possibly severe) LONG TERM EXPOSURE: no information is
available EYE CONTACT: SHORT TERM EXPOSURE: irritation (possibly
severe) LONG TERM EXPOSURE: no information is available INGESTION:
SHORT TERM EXPOSURE: no information on significant adverse effects
LONG TERM EXPOSURE: no information is available
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: Immediately flush eyes
with plenty of water for at least 15 minutes. Then get immediate
medical attention. INGESTION: If a large amount is swallowed, get
medical attention. NOTE TO PHYSICIAN: For inhalation, consider
oxygen.

Flash Point:-42 F (-41 C) (CC)
Autoignition Temp:662 F (350 C)
Lower Limits:3.4%
Upper Limits:27.0%
Extinguishing Media:carbon dioxide, regular dry chemical Large fires:
Flood with fine water spray.
Fire Fighting Procedures:Move container from fire area if it can be
done without risk. Cool containers with water spray until well
after the fire is out. 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: Stop leak if possible without
personal risk. Let burn unless leak can be stopped immediately. For
smaller tanks or cylinders, extinguish and isolate from other
flammables. Evacuation radius: 800 meters (1/2 mile).
Unusual Fire/Explosion Hazard:Severe fire hazard. Vapor/air mixtures
are explosive. Containers may rupture or explode if exposed to
heat. The vapor is heavier than air. Vapors or gases may ignite at
distant ignition sources and flash back. Electrostatic discharges
may be generated by flow or agitation resulting in ignition or
explosion. Severe explosion hazard.

Spill Release Procedures:Avoid heat, flames, sparks and other sources
of ignition. Do not touch spilled material. Stop leak if possible
without personal risk. Reduce vapors with water spray. Keep
unnecessary people away, isolate hazard area and deny entry. Remove
sources of ignition. Ventilate closed spaces before entering.
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. Grounding and bonding
required. Keep separated from incompatible substances. Protect from
physical damage. Store outside or in a detached building. Inside
storage: Store in a cool, dry place. Store in a well-ventilated
area. Avoid heat, flames, sparks and other sources of ignition.
Other Precautions:

Respiratory Protection:Under conditions of frequent use or heavy
exposure, respiratory protection may be needed. Respiratory
protection is ranked in order from minimum to maximum. Consider
warning properties before use. Any chemical cartridge respirator
with organic vapor cartridge(s). Any chemical cartridge respirator
with a full facepiece and organic vapor cartridge(s). Any
air-purifying respirator with a full facepiece and an organic vapor
canister. For Unknown Concentrations or Immediately Dangerous to
Life or Health - 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. Any self-contained
breathing apparatus with a full facepiece.
Ventilation:Provide local exhaust ventilation system. Ventilation
equipment should be explosion-resistant if explosive concentrations
of material are present. Ensure compliance with applicable exposure
limits.
Protective Gloves:Wear insulated gloves.
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: Protective clothing is not
required. For the liquid: Wear appropriate protective, cold
insulating clothing.
Supplemental Safety and Health
DIMETHYL ETHER: 1000 ppm AIHA recommended TWA

Boiling Pt:-11 F (-24 C)
Melt/Freeze Pt:-224 F (-142 C)
Vapor Pres:3982 mmHg @ 20 C
Vapor Density:1.6
Spec Gravity:0.661
pH:Not applicable
Evaporation Rate & Reference:Not applicable
Solubility in Water:7.6%
Appearance and Odor:PHYSICAL STATE:gas COLOR:colorless ODOR:sweet odor
Corrosion Rate:

Stability Indicator/Materials to Avoid:May form explosive peroxides.
Avoid prolonged storage or contact with air, light or storage and
use above room temperature.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Minimize contact with material. Containers may
rupture or explode if exposed to heat.
Hazardous Decomposition Products:Thermal decomposition products:
miscellaneous decomposition products Thermal decomposition
products: miscellaneous decomposition products
Conditions to Avoid Polymerization:Will not polymerize.

Waste Disposal Methods:Subject to disposal regulations: U.S. EPA 40 CFR
262. Hazardous Waste Number(s): D001. Subject to disposal
regulations: U.S. EPA 40 CFR 262. Hazardous Waste Number(s): D003.
Dispose in accordance with all applicable regulations.

Toxicological Information:DIMETHYL ETHER: TOXICITY DATA: 308 gm/m3
inhalation-rat LC50 LOCAL EFFECTS: Irritant: inhalation, skin, eye
ACUTE TOXICITY LEVEL: Slightly Toxic: inhalation TARGET ORGANS:
central nervous system

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:Not available

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Dimethyl ether ID NUMBER: UN1033 HAZARD CLASS OR DIVISION: 2.1
LABELING REQUIREMENTS: Flammable gas QUANTITY LIMITATIONS:
PASSENGER AIRCRAFT OR RAILCAR: Forbidden CARGO AIRCRAFT ONLY: 150
kg

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): Not regulated. SARA TITLE
III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40): Not
regulated. SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS
CATEGORIES (40 CFR 370.21): ACUTE: Yes CHRONIC: No FIRE: Yes
REACTIVE: Yes SUDDEN RELEASE: Yes SARA TITLE III SECTION 313 (40
CFR 372.65): Not regulated.
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): Not regulated. OSHA PROCESS SAFETY
(29CFR1910.119): Not regulated.
State Regulatory Information: California Proposition 65: Not regulated.