Stabilized and desensitized flowable red phosphorus

Details Stabilized and desensitized flowable red phosphorus Stabilized and desensitized flowable red phosphorus

C - Chemistry, Metallurgy

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B

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C01B 25/023 (2006.01) C01B 25/00 (2006.01) C08K 3/02 (2006.01)

Patent

CA 1282576

STABILIZED AND DESENSITIZED FLOWABLE RED PHOSPHORUS ABSTRACT OF THE DISCLOSURE Stabilized and desensitized pulverulent flowable red phosphorus consisting of particles with a size of at most 2 mm, and process for making it. To this end, red phosphorus is prepared from yellow phosphorus. Next, an aqueous suspen- sion of pulverulent red phosphorus is freed from residual fractions of yellow phosphorus by treating it with a sodium hydroxide solution, and the red phosphorus in the aqueous suspension is stabilized with aluminum hydroxide and a hardened epoxide resin and desensitized in the aqueous suspension by means of a water-emulsifiable organic com- pound which is liquid, inactive with respect to phosphorus and has a low vapor pressure at room temperature and at atmospheric pressure.

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