Magnesium phosphide

  • Magtoxin
  • Trimagnesium diphosphide
Formula
Mg3P2
Structure
Description
Green to yellow crystals
Uses
Insecticide.

Registry Numbers and Inventories.
CAS
12057-74-8
EC (EINECS/ELINCS)
235-023-7
EC Index Number
015-005-00-3
EC Class
Highly flammable; Very toxic; Dangerous for the Environment
RTECS
OM4200000
RTECS class
Other
UN (DOT)
2011
Beilstein/Gmelin
169799 (G)
EPA OPP
66504
Swiss Giftliste 1
G-7042
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Mg3P2
Formula mass
134.87
Melting point, °C
>750
Density
2.055 g/cm3 (25 C)
Solubility in water
Reacts

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 chemical protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus.
Small spills/leaks
Do not use water. Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry.
Stability
No data.
Incompatibilities
React vigorously with most oxidants.

Fire.
Fire fighting
Do not extinguish fire unless flow can be stopped. Do not use water. Use graphite, soda ash, powdered sodium chloride, or suitable dry powder.
Hazards
Produce flammable and toxic gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
 
Special
W

Health.
Poison_Class
1
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
2011
Response guide
Hazard class
4.3
PRTC
T
Packing Group
I
 
USCG CHRIS Code
MPP
 
Std. Transport #
4916463