1-Ethynylcyclopentanol

Formula
C7H10O
Structure
Description
Colorless liquid.

Registry Numbers and Inventories.
CAS
17356-19-3
EC (EINECS/ELINCS)
241-385-7
R 10 21/22 36/37/38
S 26 36/37/39
UN (DOT)
1986
Beilstein/Gmelin
1924167
Beilstein Reference
4-06-00-00339
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
C7H10O
Formula mass
110.15
Melting point, °C
20
Boiling point, °C
161
Vapor pressure, mmHg
1.1 (25 C)
Density
0.9737 g/cm3 (20 C)
Solubility in water
Soluble
Refractive index
1.4751 (20 C)
pKa/pKb
13.34
Partition coefficient, pKow
1.17
Heat of vaporization
45.7 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing.
Protection
Eyes: Wear chemical goggles. 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 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Stability
No data.
Incompatibilities
Strong acids - strong oxidizing agents - acid chlorides - strong reducing agents - acid anhydrides.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
48
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Harmful if swallowed. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.
   Inhalation
Causes respiratory tract irritation. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth. May cause chemical bronchitis with coughing and difficulty in breathing.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation. Lachrymator. Lachrymator.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1986
Response guide
Hazard class
3
Packing Group
I; II; III