Sodium phosphide

  • Trisodium phosphide
Formula
Na3P
Structure
Description
Black powder.

Registry Numbers and Inventories.
CAS
12058-85-4
EC (EINECS/ELINCS)
235-031-0
UN (DOT)
1432
Beilstein/Gmelin
21185 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
NaP3
Formula mass
99.94
Solubility in water
Insoluble
Dielectric constant
5.29

Hazards and Protection.
Storage
Protect from moist air - will react to produce highly toxic phosphine.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Wear a fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources and prevent all contact with the material. Stop leak if you can do it without risk. DO NOT GET WATER on spilled substance or inside containers. FOR CHLOROSILANES, use AFFF alcohol-resistant medium expansion foam to reduce vapors. Cover with DRY earth, DRY sand, or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. For powders, cover spill with plastic sheet or tarp to minimize spreading and keep powder dry. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST.
Stability
No data.
Decomposition
Produces phosphine when exposed to water.

Fire.
Fire fighting
DO NOT USE WATER OR FOAM. Small Fires: Dry chemical, soda ash, lime or sand. Large Fires: DRY sand, dry chemical, soda ash or lime or withdraw from area and let fire burn.
Hazards
Produce flammable and toxic gases on contact with water. May ignite on contact with water or moist air. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
 
Special
W

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Highly toxic: contact with water produces toxic gas, may be fatal if inhaled. Inhalation or contact with vapors, substance, or decomposition products may cause severe injury or death.
   Skin
See Inhalation.
   Eyes
May cause burns.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. In case of contact with substance, wipe from skin immediately. Flush with running water for at least 20 minutes.
   Eyes
Flush with running water for at least 20 minutes.

Transport.
UN number
1432
Response guide
Hazard class
4.3
PRTC
T
Packing Group
I