Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a

Details Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a

1980-11-17

1983-02-22

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423307, C01B 2512, C01B 2516, C01B 1516

Patent

active

043748163

ABSTRACT:
A process for producing hypophosphorous acid (H.sub.3 PO.sub.2) by reacting, in the absence of a catalyst and under an acidic condition, phosphine with an aqueous solution of hydrogen peroxide to produce an acid solution. The acid solution is then contacted with an non-transition metal hydroxide, oxide or carbonate, e.g. sodium hydroxide, to produce a product composition containing a hypophosphite, e.g. sodium hypophosphite (NaH.sub.2 PO.sub.2.H.sub.2 O). The process of this invention finds particular utility in processes of the type wherein phosphorus is reacted with an aqueous non-transition metal hydroxide composition, e.g. an aqueous suspension of a sodium hydroxide and calcium hydroxide, to produce a hypophosphite and byproduct phosphine. The process of this invention converts a substantial portion of the byproduct phosphine to hypophosphite.

REFERENCES:
patent: 2977192 (1961-03-01), Cummins
patent: 3052519 (1962-09-01), Bianchi et al.
Chemical Abstracts, vol. 76, 1972, 50585j.
Paris & Tardy, Compt. Rendu 223, 1946, 242-243.

Affiliated with

Also associated with

Rating

Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing hypo-phosphorous acid (H.sub.3 PO.sub.2) a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1373111