SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 12/MAY/2005
Date Updated: 03/JAN/2005
Version 1.2
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name POTASSIUM TERT-BUTOXIDE, REAGENT GRADE,
95%
Product Number 156671
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
POTASSIUM T-BUTOXIDE 865-47-4 212-740-3 None
Formula C4H9KO
Molecular Weight 112.22 AMU
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
Highly flammable. Reacts violently with water. Causes severe burns.
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
AFTER SKIN CONTACT
In case of skin contact, flush with copious amounts of water for
at least 15 minutes. Remove contaminated clothing and shoes.
Call a physician.
AFTER EYE CONTACT
In case of contact with eyes, flush with copious amounts of
water for at least 15 minutes. Assure adequate flushing by
separating the eyelids with fingers. Call a physician.
AFTER INGESTION
If swallowed, wash out mouth with water provided person is
conscious. Call a physician immediately. Do not induce vomiting.
5 - Fire Fighting Measures
EXPLOSION DATA
Dust Potential: This material, like most materials in powder
form, is capable of creating a dust explosion.
CONDITIONS OF FLAMMABILITY
Reacts with water to liberate flammable and/or explosive gas.
EXTINGUISHING MEDIA
Suitable: Dry chemical powder.
Unsuitable: Do not use water. Do not use carbon dioxide
extinguisher on this material.
SPECIAL RISKS
Specific Hazard(s): Flammable solid. Contact with other material
may cause fire.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area. Shut off all sources of ignition. Use nonsparking
tools.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves.
METHODS FOR CLEANING UP
Cover with dry-lime, sand, or soda ash. Place in covered
containers using non-sparking tools and transport outdoors.
Ventilate area and wash spill site after material pickup is
complete.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Do not get in
eyes, on skin, on clothing. Avoid prolonged or repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from
combustible materials, heat, sparks, and open flame. Store in a
cool dry place.
Incompatible Materials: Do not allow contact with water
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Safety shower and eye bath. Use nonsparking tools. Open only in a
fume hood.
GENERAL HYGIENE MEASURES
Wash contaminated clothing before reuse. Discard contaminated
shoes. Wash thoroughly after handling.
PERSONAL PROTECTIVE EQUIPMENT
Respiratory Protection: Government approved respirator.
Hand Protection: Compatible chemical-resistant gloves.
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Eye Protection: Chemical safety goggles.
9 - Physical and Chemical Properties
Appearance Physical State: Solid
Color: Faintly yellow
Form: Powder
Property Value At Temperature or Pressure
pH N/A
BP/BP Range N/A
MP/MP Range 256 - 258 掳C
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure 1 mmHg 220 掳C
SG/Density N/A
Partition Coefficient N/A
Viscosity N/A
Vapor Density N/A
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density 0.52 - 0.560 kg/l
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
10 - Stability and Reactivity
STABILITY
Stable: Stable.
Conditions of Instability: May decompose on exposure to moist air
or water. Absorbs carbon dioxide from air.
Materials to Avoid: Acids, Water, Reducing agents, Oxygen,
Alcohols, Chlorinated solvents, Halogens, Ketones.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Carbon monoxide, Carbon dioxide,
Potassium oxides.
HAZARDOUS POLYMERIZATION
Hazardous Polymerization: Will not occur
11 - Toxicological Information
SIGNS AND SYMPTOMS OF EXPOSURE
Inhalation may result in spasm, inflammation and edema of the
larynxand bronchi, chemical pneumonitis, and pulmonary edema.
Symptoms of exposure may include burning sensation, coughing,
wheezing, laryngitis, shortness of breath, headache, nausea, and
vomiting. Material is extremely destructive to tissue of the
mucous membranes and upper respiratory tract, eyes, and skin. To
the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
ALDRICH - 156671 www.sigma-aldrich.com Page 3
ROUTE OF EXPOSURE
Skin Contact: Causes severe burns.
Skin Absorption: May be harmful if absorbed through the skin.
Eye Contact: Causes severe burns.
Inhalation: May be harmful if inhaled. Material is extremely
destructive to the tissue of the mucous membranes and upper
respiratory tract.
Ingestion: May be harmful if swallowed.
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Dissolve or mix the material with a combustible
solvent and burn in a chemical incinerator equipped with an
afterburner and scrubber. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 3206
Class: 4.2
PG: II
Proper Shipping Name: Alkali metal alcoholates,
self-heating, corrosive, n.o.s.
IMDG
UN#: 3206
Class: 4.2
PG: II
Subrisk: 8
Proper Shipping Name: ALKALI METAL ALCOHOLATES,
SELF-HEATING, CORROSIVE, N.O.S.
Marine Pollutant: No
Severe Marine Pollutant: No
Technical Name: Required
IATA
UN#: 3206
Class: 4.2
PG: II
Subrisk: 8
Proper Shipping Name: Alkali metal alcoholates,
self-heating, corrosive, n.o.s.
Inhalation Packing Group I: No
Technical Name: Required
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
INDICATION OF DANGER: F C
Highly Flammable. Corrosive.
R-PHRASES: 11 14 35
Highly flammable. Reacts violently with water. Causes severe
burns.
S-PHRASES: 7/9 16 26 36/37/39 43 45
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Keep container tightly closed and in well-ventilated place.
Keep away from sources of ignition - no smoking. In case of
contact with eyes, rinse immediately with plenty of water and
seek medical advice. Wear suitable protective clothing, gloves,
and eye/face protection. In case of fire, use special powder
for metal fire. Never use water. In case of accident or if you
feel unwell, seek medical advice immediately (show the label
where possible).
SWITZERLAND
SWISS POISON CLASS: 2
16 - Other Information
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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