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MSDS 
:
 Ethylmagnesium chloride, 25 wt% solution in tetrahydrofuran
CAS 
:
 109-99-9
SYNONYMS 
:
 None.
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 109-99-9 |Tetrahydrofuran | 75 | 203-726-8 |
|----------------|--------------------------------------|----------|-----------|
| 2386-64-3 |Ethylmagnesium chloride | 25 | 219-206-9 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: F C
Risk Phrases: 11 15 34

**** SECTION 3 - HAZARDS IDENTIFICATION ****

EMERGENCY OVERVIEW
Highly flammable. Contact with water liberates extremely flammable
gases. Causes burns.Moisture sensitive.Corrosive.

Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May be harmful if swallowed.
Inhalation:
Causes chemical burns to the respiratory tract. Vapors may cause
dizziness or suffocation. Causes irritation of the mucous membrane.
Chronic:
Not available.

**** SECTION 4 - FIRST AID MEASURES ****

Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If breathing is difficult, give oxygen. Do NOT use
mouth-to-mouth resuscitation. If breathing has ceased apply
artificial respiration using oxygen and a suitable mechanical device
such as a bag and a mask.
Notes to Physician:
Antidote:
None reported.

**** 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. Vapors may form an explosive mixture with air.
Vapors can travel to a source of ignition and flash back. During a
fire, irritating and highly toxic gases may be generated by thermal
decomposition or combustion. Will burn if involved in a fire. Use
water spray to keep fire-exposed containers cool. Containers may
explode in the heat of a fire. Flammable liquid and vapor.
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. Use water spray to cool fire-exposed
containers. Water may be ineffective. Do NOT get water inside
containers. 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. Clean up spills immediately,
observing precautions in the Protective Equipment section. Remove all
sources of ignition. Use a spark-proof tool. Provide ventilation. Do
not get water inside containers. A vapor suppressing foam may be
used to reduce vapors.

**** SECTION 7 - HANDLING and STORAGE ****

Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use only in a well-ventilated area. Ground and
bond containers when transferring material. Use spark-proof tools and
explosion proof equipment. Do not get in eyes, on skin, or on
clothing. Empty containers retain product residue, (liquid and/or
vapor), and can be dangerous. Keep container tightly closed. Keep
away from heat, sparks and flame. Do not ingest or inhale. Do not
allow contact with water. Discard contaminated shoes. Do not
pressurize, cut, weld, braze, solder, drill, grind, or expose empty
containers to heat, sparks or open flames. Keep from contact with
moist air and steam.
Storage:
Keep away from heat, sparks, and flame. Keep away from heat and
flame. Keep away from sources of ignition. Do not store in direct
sunlight. Keep container closed when not in use. Store in a cool,
dry, well-ventilated area away from incompatible substances.
Flammables-area. Store protected from moisture.

**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****

Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Exposure Limits
CAS# 109-99-9:
United Kingdom, WEL - TWA: 50 ppm TWA; 150 mg/m3 TWA
United Kingdom, WEL - STEL: 100 ppm STEL; 300 mg/m3 STEL
United States OSHA: 200 ppm TWA; 590 mg/m3 TWA
Belgium - TWA: 200 ppm VLE; 599 mg/m3 VLE
Belgium - STEL: 100 ppm VLE; 300 mg/m3 VLE
France - VME: 200 ppm VME; 590 mg/m3 VME
Germany: 50 ppm TWA; 150 mg/m3 TWA
Germany: Skin absorber
Japan: 200 ppm OEL; 590 mg/m3 OEL
Malaysia: 200 ppm TWA; 590 mg/m3 TWA
Netherlands: 100 ppm MAC; 300 mg/m3 MAC
Russia: 100 mg/m3 TWA
Spain: 50 ppm VLA-ED; 150 mg/m3 VLA-ED
Spain: 100 ppm VLA-EC; 300 mg/m3 VLA-EC
CAS# 2386-64-3:


Personal Protective Equipment

Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use. 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: dark brown
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: 1.40 deg F ( -17.00 deg C)
Explosion Limits, lower: 2.00 vol %
Explosion Limits, upper: 12.40 vol %
Decomposition Temperature:
Solubility in water: reacts
Specific Gravity/Density: 1.0300g/cm3
Molecular Formula: C2H5ClMg
Molecular Weight: 88.83

**** SECTION 10 - STABILITY AND REACTIVITY ****

Chemical Stability:
Stable under normal temperatures and pressures. Prolonged exposure
to air and sunlight may form unstable peroxides. Peroxide formation
may occur in containers that have been opened and remain in storage.
Normally stable; however, on long term storage, materials containing
similar functional groups form peroxides of unknown stability.
Moisture sensitive. Tetrahydrofuran will auto oxidize in the
presence of light and oxygen to form resinous products.
Conditions to Avoid:
Incompatible materials, ignition sources, moisture, excess heat,
strong oxidants, exposure to moist air or water.
Incompatibilities with Other Materials:
Oxidizing agents, acids, bases, oxygen, metal halides, lithium
tetrahydroaluminate, borane.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and
gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.

**** SECTION 11 - TOXICOLOGICAL INFORMATION ****

RTECS#:
CAS# 109-99-9: LU5950000
CAS# 2386-64-3 unlisted.
LD50/LC50:
CAS# 109-99-9: Inhalation, rat: LC50 = 21000 ppm/3H; Oral, rat: LD50
= 1650 mg/kg.
CAS# 2386-64-3.
Carcinogenicity:
Tetrahydrofuran -
ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to
Ethylmagnesium chloride -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

**** SECTION 12 - ECOLOGICAL INFORMATION ****

Ecotoxicity:
Cas# 109-00-0:
LC50(96Hr.) Fathead Minnow = 2160 mg/L

**** SECTION 13 - DISPOSAL CONSIDERATIONS ****

Dispose of in a manner consistent with federal, state, and local regulations.

**** SECTION 14 - TRANSPORT INFORMATION ****

IATA
Shipping Name: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE,
FLAMMABLE
Hazard Class: 4.3 (8)
UN Number: 3399
Packing Group: I
IMO
Shipping Name: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE,
FLAMMABLE
Hazard Class: 4.3 (8)
UN Number: 3399
Packing Group: I
RID/ADR
Shipping Name: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE,
FLAMMABLE
Hazard Class: 4.3
UN Number: 3399
Packing group: I
USA RQ: CAS# 109-99-9: 1000 lb final RQ; 454 kg final RQ

**** SECTION 15 - REGULATORY INFORMATION ****

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: F C
Risk Phrases:
R 11 Highly flammable.
R 15 Contact with water liberates extremely
flammable gases.
R 34 Causes burns.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No
smoking.
S 25 Avoid contact with eyes.
S 30 Never add water to this product.
S 33 Take precautionary measures against static
discharges.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 109-99-9: 1
CAS# 2386-64-3: No information available.
Canada
CAS# 109-99-9 is listed on Canada's DSL List.
CAS# 2386-64-3 is listed on Canada's NDSL List.
CAS# 109-99-9 is listed on Canada's Ingredient Disclosure List.
CAS# 2386-64-3 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 109-99-9 is listed on the TSCA inventory.
CAS# 2386-64-3 is listed on the TSCA inventory.

**** SECTION 16 - ADDITIONAL INFORMATION ****

Text for R-phrases from Section 2
R 11 Highly flammable.
R 14/15 Reacts violently with water liberating extremely
flammable gases.
R 17 Spontaneously flammable in air.
R 19 May form explosive peroxides.
R 22 Harmful if swallowed.
R 34 Causes burns.
R 36/37 Irritating to eyes and respiratory system.
MSDS Creation Date: 6/02/1999 Revision #4 Date: 6/08/2005

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.
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