Phosphine

CAS RN: 7803-51-2
UN/NA: 2199

Major Uses

Insecticides
For phosphine (USEPA/OPP Pesticide Code: 66500) ACTIVE products with label matches. /SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./
The end-use product is a poisonous liquefied gas under pressure, and is a Restricted Use Pesticide (RUP) due to the acute inhalation toxicity of phosphine gas.
Phosphine gas is used indoors to control a broad spectrum of insects for non-food/non-feed commodities in sealed containers or structures. There are no homeowner or agricultural row crop uses for this product.
Used as a fumigant, doping agent for electronic components, and in chemical synthesis.
Organic preparations, phosphonium halides, doping agent for n-type semiconductors, polymerization initiator, condensation catalyst.
As an intermediate for the preparation of several flame retardants.
... Use of phosphine in manufacture of photovoltaic cells ...
Phosphine is a food fumigant, used until now as an insecticide and rodenticide. The present work researches the action of phosphine treatment on growth and aflatoxin production of 23 Aspergillus strains. Production of aflatoxins B1, B2, G1, and G2 decreased in almost all cases by a ratio of 10 to 100. Phosphine treatment therefore seems favorable to prevent growth of various Aspergillus strains, in the context of keeping food safe.
Find more information on this substance at: PubChem, PubMed