Potassium tert-butanolate

  • 2-Propanol, 2-methyl-, potassium salt
Formula
(CH3)3COK
Structure
Description
White to off-white powder.

Registry Numbers and Inventories.
CAS
865-47-4
EC (EINECS/ELINCS)
212-740-3
EC Class
highly flammable, harmful, corrosive
R 11 14 22 34
S 7/8 26 43 45
UN (DOT)
2925
Beilstein/Gmelin
3556712
Beilstein Reference
4-01-00-01609
Swiss Giftliste 1
G-7827
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C4H9KO
Formula mass
112.22
Vapor density (air=1)
3.9

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale.
Protection
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
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Remove all sources of ignition. Place under an inert atmosphere. Clean up residual material by washing area with a 2-5% solution of soda ash.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Acids, strong oxidizing agents, acetone, acetic acid.
Decomposition
Carbon monoxide, carbon dioxide, oxides of potassium.

Fire.
Autoignition, °C
360
Upper exp. limit, %
8.0
Lower exp. limit, %
2.4
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Flammable solid. Containers may explode when heated. May re-ignite after fire is extinguished. Extinguishing media: For large fires, use water spray or fog. Cool containers with flooding quantities of water until well after fire is out. 'The Merck Index,' Windholz, Budavari, Blumentti, and Otterbein, Twelfth Edition, Merck and Company, Inc., Rahway, NJ 1999.
Fire potential
Flammable/combustible material.
Hazards
May be ignited by heat, sparks or flames. When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
2
 
 
Reactivity
1
 

Health.
Poison_Class
2
Exposure effects
Effects may be delayed.
   Ingestion
May cause irritation of the digestive tract and possible burns.
   Inhalation
Dust is irritating to the respiratory tract. May cause respiratory tract irritation. May cause burns to the respiratory tract.
   Skin
May cause skin irritation and possible burns.
   Eyes
May cause eye irritation and possible burns.

First aid
 
   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 to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2925
Response guide
Hazard class
4.1
Packing Group
II; III
 
HS Code
2905 19 00