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MSDS 
:
 Potassium tri-sec-butylborohydride 1M solution in THF
CAS 
:
 109-99-9
SYNONYMS 
:
 
**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****

+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 109-99-9 |Tetrahydrofuran | 78 | 203-726-8 |
|----------------|--------------------------------------|----------|-----------|
| 54575-49-4 |Potassium tri-sec-butylborohydride | ~22 | 259-241-7 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: F C
Risk Phrases: 11 15 19 34

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

EMERGENCY OVERVIEW
Highly flammable. Contact with water liberates extremely flammable
gases. May form explosive peroxides. Causes
burns.Corrosive.Water-reactive.Moisture sensitive.

Potential Health Effects
Eye:
Causes eye burns. Vapors may cause eye irritation.
Skin:
Causes skin burns. May be absorbed through the skin in harmful
amounts.
Ingestion:
Causes gastrointestinal tract burns. May cause headache. May cause
unconsciousness. May be harmful if swallowed. May cause central
nervous system depression.
Inhalation:
Inhalation of high concentrations may cause central nervous system
effects characterized by nausea, headache, dizziness, unconsciousness
and coma. Causes chemical burns to the respiratory tract. May cause
abdominal pain, nausea, vomiting, and inflammation of the gums and
mouth.
Chronic:
Prolonged or repeated eye contact may cause conjunctivitis.
Prolonged or repeated skin contact may cause defatting and
dermatitis. May cause liver and kidney damage.

**** 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.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Discard contaminated clothing in a manner which limits
further exposure.
Ingestion:
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. Do NOT induce vomiting. If conscious and alert,
rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:

**** SECTION 5 - FIRE FIGHTING MEASURES ****

General Information:
Vapors can travel to a source of ignition and flash back. Water
Reactive. Material will react with water and may release a flammable
and/or toxic gas. Wear appropriate protective clothing to prevent
contact with skin and eyes. Wear a self-contained breathing apparatus
(SCBA) to prevent contact with thermal decomposition products.
Extremely flammable liquid and vapor. Forms peroxides of unknown
stability. Containers may explode in the heat of a fire.
Extinguishing Media:
Do NOT use water directly on fire. Use water spray to cool
fire-exposed containers. Use foam, dry chemical, or carbon dioxide.
Water may be ineffective. Use dry chemical, carbon dioxide, or
alcohol-resistant foam.

**** 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. Remove all sources of ignition.
Use a spark-proof tool.

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

Handling:
Contents may develop pressure upon prolonged storage. Do not breathe
dust, vapor, mist, or gas. 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.
Container should be opened by a technically qualified person. Use
only in a chemical fume hood. Do not pressurize, cut, weld, braze,
solder, drill, grind, or expose empty containers to heat, sparks or
open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a cool place in the original container and
protect from sunlight. Store in a cool, dry place. Store in a
tightly closed container. Keep under a nitrogen blanket. Keep away
from water. Flammables-area. Refrigerator/flammables.

**** 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# 54575-49-4:


Personal Protective Equipment

Eyes:
Wear safety glasses and chemical goggles if splashing
is possible.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to minimize
contact with skin.
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 slightly yellow
Odor: Not available.
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: -17 deg C ( 1.40 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: reacts with water
Specific Gravity/Density: .9130g/cm3
Molecular Formula: C12H28BK
Molecular Weight: 222.26

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

Chemical Stability:
Prolonged exposure to air and sunlight may form unstable peroxides.
Explosive peroxides may form on concentration. Peroxides can be
detonated by friction, impact, or heating. 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.
Conditions to Avoid:
Normally stable; however, on long term storage, materials containing
similar functional groups form peroxides of unknown stability.,
incompatible materials, light, ignition sources, exposure to air,
contact with water, exposure to moist air or water.
Incompatibilities with Other Materials:
It is explosive with potassium hydroxide, sodium hydroxide, and
sodium tetrahydroaluminate since caustic alkalies deplete the
inhibitor. Reacts with potassium dioxide 2-aminophenol to form an
explosive product. Reacts violently with metal halides. Forms
explosive hydrogen gas with borane or lithium tetrahydroaluminate and
reacts vigorously with bromine and calcium hydride+heat. Incompatible
with sulfinyl chloride and oxidizing materials. Hazardous
polymerization may occur in the presence of cationic initiators such
as strong proton acids or selected Lewis acids.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, oxides of boron,
borane.
Hazardous Polymerization: Has not been reported.

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

RTECS#:
CAS# 109-99-9: LU5950000
CAS# 54575-49-4 unlisted.
LD50/LC50:
CAS# 109-99-9: Inhalation, rat: LC50 = 21000 ppm/3H; Oral, rat: LD50
= 1650 mg/kg.
CAS# 54575-49-4.
Carcinogenicity:
Tetrahydrofuran -
ACGIH: A3 - Confirmed animal carcinogen with unknown relevance to
Potassium tri-sec-butylborohydride -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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

Ecotoxicity:
Blue-green algae, growth inhibition microcystis=225 mg/L (PH=7);
Protozoa, cell multiplication inhibition test=858 mg/L.
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: METAL ALKYLS, N.O.S.*
Hazard Class: 4.2
UN Number: 2003
Packing Group:
IMO
Shipping Name: METAL ALKYLS, N.O.S.
Hazard Class: 4.2
UN Number: 2003
Packing Group: I
RID/ADR
Shipping Name: METAL ALKYLS, N.O.S.
Hazard Class: 4.2
UN Number: 2003
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 19 May form explosive peroxides.
R 34 Causes burns.
Safety Phrases:
S 7/8 Keep container tightly closed and dry.
S 16 Keep away from sources of ignition - No
smoking.
S 25 Avoid contact with eyes.
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# 54575-49-4: No information available.
Canada
CAS# 109-99-9 is listed on Canada's DSL List.
CAS# 54575-49-4 is listed on Canada's NDSL List.
CAS# 109-99-9 is listed on Canada's Ingredient Disclosure List.
CAS# 54575-49-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 109-99-9 is listed on the TSCA inventory.
CAS# 54575-49-4 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 19 May form explosive peroxides.
R 34 Causes burns.
R 36/37 Irritating to eyes and respiratory system.
MSDS Creation Date: 6/02/1999 Revision #3 Date: 3/18/2003

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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