bis(1,2-Diphenylphosphino)ethane

  • Phosphine, 1,2-ethanediylbis[diphenyl-
Formula
C26H24P2
Structure
Description
White to off-white powder.
Uses
reagent for conversion of primary and secondary alcohols to chlorides and bromides: oxide byproduct filtrable

Registry Numbers and Inventories.
CAS
1663-45-2
EC (EINECS/ELINCS)
216-769-2
EC Class
irritant
R 36/37/38
Beilstein/Gmelin
761261
Beilstein Reference
4-16-00-00958
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C26H24P2
Formula mass
398.43
Melting point, °C
140 - 142

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Storage under a nitrogen blanket has been recommended.
Handling
Wash thoroughly after handling. 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
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Phosphine, carbon monoxide, oxides of phosphorus, carbon dioxide.

Fire.
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. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

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
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. 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.
HS Code
2931 00 95