2-Piperidinone

  • delta-Valerolactam
Formula
C5H9NO
Structure
Description
White chunks.

Registry Numbers and Inventories.
CAS
675-20-7
EC (EINECS/ELINCS)
211-622-9
EC Class
irritant
RTECS
TO0110000
RTECS class
Drug
Beilstein/Gmelin
106434
Beilstein Reference
5-21-06-00396
Swiss Giftliste 1
G-8864
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C5H9NO
Formula mass
99.13
Melting point, °C
35 - 38
Boiling point, °C
256
Vapor pressure, mmHg
0.016 (25 C)
Density
1.073 g/cm3 (40 C)
Solubility in water
Very soluble
Partition coefficient, pKow
-0.89
Heat of vaporization
49.4 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
133
Autoignition, °C
335
Upper exp. limit, %
8.7
Lower exp. limit, %
1.5
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 appropriate foam.
Hazards
During a fire, irritating and highly toxic gasesmay be generated by thermal decomposition or combustion.

Health.
Poison_Class
4
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   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.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
HS Code
2933 79 00