Tetraphenylcyclopentadienone

  • 2,4-Cyclopentadien-1-one, 2,3,4,5-tetraphenyl-
Formula
C29H20O
Structure
Description
Black solid.

Registry Numbers and Inventories.
CAS
479-33-4
EC (EINECS/ELINCS)
207-530-3
S 22 24/25
Beilstein/Gmelin
683115
Beilstein Reference
4-07-00-01953
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C29H20O
Formula mass
384.48
Melting point, °C
219 - 222
Density
1.233 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
6.11

Hazards and Protection.
Storage
Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Disposal code
3
Stability
No data.
Incompatibilities
Strong oxidizing agents, strong acids.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
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.

Health.
Exposure effects
   Ingestion
The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation.
   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. 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
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   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
2914 39 00