Triphenylphosphine selenide

Formula
(C6H5)3PSe
Structure
Description
White to off-white solid.

Registry Numbers and Inventories.
CAS
3878-44-2
EC (EINECS/ELINCS)
223-406-1
EC Index Number
034-002-00-8
EC Class
toxic, dangerous for the environment
R 23/25 33 50/53
S 20/21 28 45 60 61
RTECS
SZ2455000
RTECS class
Other
UN (DOT)
2811
Beilstein/Gmelin
2269139
Beilstein Reference
3-16-00-00866
New Zealand
Listed

Properties.
Formula
C18H15PSe
Formula mass
341.25
Melting point, °C
186 - 189
Solubility in water
Insoluble

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
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
9
Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide, selenium/selenium oxides.

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.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Poison by ingestion. The toxicological properties of this substance have not been fully investigated.
   Inhalation
Toxic if inhaled.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid immediately. Wash mouth out with water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Immediately 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
2811
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
HS Code
2931 00 95