Stabilized red phosphorus and process for making it

Details Stabilized red phosphorus and process for making it Stabilized red phosphorus and process for making it

C - Chemistry, Metallurgy

01

B

23/59

C01B 25/00 (2006.01)

Patent

CA 1081430

STABILIZED RED PHOSPHORUS AND PROCESS FOR MAKING IT ABSTRACT OF THE DISCLOSURE Production of stabilized pulverulent red phospho- rus. The phosphorus so stabilized comprises a homo- geneous blend of red phosphorus particles with a size of at most about 2 mm and a metal compound of the second or third group of the Periodic System as an oxidation stabilizer, wherein the metal compound is the aluminum, calcium or zinc salt of a phosphinic acid of the general formula Image in which R1 and R2 each stand for an alkyl, cycloalkyl, aryl or aralkyl group having 1 to 20 carbon atoms, the metal compound being present in the homogeneous blend in a proportion of about 0.5 to 5 weight %.

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