**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 1634-04-4 |tert-Butyl methyl ether | 99 | 216-653-1 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: XI F
Risk Phrases: 11 19 38
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Highly flammable. May form explosive peroxides. Irritating to skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. A single prolonged skin exposure is not
likely to result in the material being absorbed in harmful amounts.
Ingestion:
May cause effects similar to those for inhalation exposure.
Aspiration of material into the lungs may cause chemical
pneumonitis, which may be fatal.
Inhalation:
Causes respiratory tract irritation. May cause kidney damage. May
cause drowsiness, unconsciousness, and central nervous system
depression. Vapors may cause dizziness or suffocation.
Chronic:
Chronic inhalation may cause effects similar to those of acute
inhalation. May cause cancer according to animal studies. Adverse
reproductive effects have been reported in animals.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid.
Skin:
In case of contact, flush skin with plenty of water. Remove
contaminated clothing and shoes. Get medical aid if irritation
develops and persists. Wash clothing before reuse.
Ingestion:
Potential for aspiration if swallowed. Get medical aid immediately.
Do not induce vomiting unless directed to do so by medical
personnel. Never give anything by mouth to an unconscious person.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Combustion generates toxic fumes. Use water spray
to keep fire-exposed containers cool. Containers may explode in the
heat of a fire. May form explosive peroxides. Extremely flammable
liquid and vapor. Vapor may cause flash fire. This liquid floats on
water and may travel to a source of ignition and spread fire.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. For large fires, use water spray, fog, or
alcohol-resistant foam. Water may be ineffective. Do NOT use
straight streams of water.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Avoid runoff into storm sewers and
ditches which lead to waterways. Remove all sources of ignition.
Provide ventilation. A vapor suppressing foam may be used to reduce
vapors.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Ground and bond containers when transferring material. Use
spark-proof tools and explosion proof equipment. Avoid contact with
eyes, skin, and clothing. Empty containers retain product residue,
(liquid and/or vapor), and can be dangerous. Keep container tightly
closed. Avoid ingestion and inhalation. If peroxide formation is
suspected, do not open or move container. Do not pressurize, cut,
weld, braze, solder, drill, grind, or expose empty containers to
heat, sparks or open flames. Use only with adequate ventilation.
Keep away from heat, sparks and flame. Do not allow to evaporate to
near dryness.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. In the
presence of atmospheric oxygen, ethers generally form unstable
peroxides, but no peroxides were detected in unstabilized MTBE after
storage for 52 months. MTBE has a significantly decreased formation
of peroxides compared with other ethers.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Exposure Limits
CAS# 1634-04-4:
United Kingdom, WEL - TWA: 25 ppm TWA; 92 mg/m3 TWA
United Kingdom, WEL - STEL: 75 ppm STEL; 275 mg/m3 STEL
Belgium - TWA: 40 ppm VLE; 146 mg/m3 VLE
Germany: 50 ppm TWA; 180 mg/m3 TWA
Malaysia: 40 ppm TWA; 144 mg/m3 TWA
Netherlands: 100 ppm STEL; 360 mg/m3 STEL
Netherlands: 50 ppm MAC; 180 mg/m3 MAC
Russia: 100 mg/m3 TWA
Spain: 40 ppm VLA-ED; 147 mg/m3 VLA-ED
Personal Protective Equipment
Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure. Chemical-resistant nitrile rubber gloves
should be worn during routine handling. Disposable
nitrile gloves may be suggested for intermittent use.
PVC, Neoprene, Viton, Butyl or natural rubber are NOT
recommended.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: clear, colorless
Odor: hydrocarbon-like - unpleasant odor
pH: Not available.
Vapor Pressure: 249 mm Hg @ 25 deg C
Viscosity: Not available.
Boiling Point: 55.2 deg C
Freezing/Melting Point: -109 deg C
Autoignition Temperature: 435 deg C ( 815.00 deg F)
Flash Point: -28 deg C ( -18.40 deg F)
Explosion Limits, lower: 1.6%
Explosion Limits, upper: 8.4%
Decomposition Temperature: Not available.
Solubility in water: 4.8g/100g water
Specific Gravity/Density: 0.74 (water=1)
Molecular Formula: C5H12O
Molecular Weight: 88.15
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions. Under normal storage conditions,
peroxidizable compounds can form and accumulate peroxides which may
explode when subjected to heat or shock. This material is most
hazardous when peroxide levels are concentrated by distillation or
evaporation.
Conditions to Avoid:
Ignition sources, excess heat, prolonged exposure to air.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong acids.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, formic acid, butyl formate, methyl
radicals, acetone.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 1634-04-4: KN5250000
LD50/LC50:
CAS# 1634-04-4: Inhalation, mouse: LC50 = 141 gm/m3/15M; Inhalation,
mouse: LC50 = 28000 mg/m3/2H; Inhalation, rat: LC50 = 23576 ppm/4H;
Inhalation, rat: LC50 = 41000 mg/m3/4H; Oral, mouse: LD50 = 5960
uL/kg; Oral, rat: LD50 = 4 gm/kg.
Carcinogenicity:
tert-Butyl methyl ether -
ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish: Fathead Minnow: LC50 = 110 mg/L; 96 Hr.; UnspecifiedFish:
Fathead Minnow: LC50 = 706 mg/L; 30 days old; Flow-through; 24-26
degreesBacteria: Phytobacterium phosphoreum: EC50 = 11.4-55 mg/L;
5,15,30 minutes; Microtox test; 15 degrees C
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: METHYL-tert-BUTYL ETHER
Hazard Class: 3
UN Number: 2398
Packing Group: II
IMO
Shipping Name: METHYL-tertiary-BUTYL ETHER
Hazard Class: 3.1
UN Number: 2398
Packing Group: II
RID/ADR
Shipping Name: METHYL-tert-BUTYL ETHER
Hazard Class: 3
UN Number: 2398
Packing group: II
USA RQ: CAS# 1634-04-4: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI F
Risk Phrases:
R 11 Highly flammable.
R 19 May form explosive peroxides.
R 38 Irritating to skin.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 33 Take precautionary measures against static
discharges.
S 37 Wear suitable gloves.
WGK (Water Danger/Protection)
CAS# 1634-04-4: 1
Canada
CAS# 1634-04-4 is listed on Canada's DSL List.
CAS# 1634-04-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1634-04-4 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 6/24/1999 Revision #6 Date: 10/21/2004
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
|
|
|