Process for preparing crystalline ammonium dihydrogen phosphate

Details Process for preparing crystalline ammonium dihydrogen phosphate Process for preparing crystalline ammonium dihydrogen phosphate

1980-10-29

1982-05-11

Vertiz, O. R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

423310, C01B 2528

Patent

active

043293263

ABSTRACT:
A process for preparing crystalline ammonium dihydrogen phosphate, comprises the steps of (a) adding a sequestering agent into ammonium hydrogen phosphate aqueous solution, the sequestering agent reacting with metallic ions contained in the aqueous solution to form water solouble compounds, (b) heat-treating the aqueous solution at a temperature of 70.degree. C. or more after addition of the sequestering agent, and (c) crystallizing ammonium dihydrogen phosphate out of the aqueous solution after the heat-treating, so that crystalline ammonium dihydrogen phosphate can be obtained in high whiteness and in the form of columnar crystals.

REFERENCES:
patent: Re29149 (1977-03-01), Young
patent: 1514912 (1924-11-01), Klugh
patent: 3179496 (1965-04-01), Skinner et al.
patent: 3192013 (1960-08-01), Young
patent: 3275566 (1966-09-01), Langeuth
patent: 3290140 (1966-12-01), Young
patent: 3446581 (1969-05-01), Smith et al.
patent: 3446582 (1969-05-01), Smith et al.
patent: 3459499 (1966-04-01), Mullen, Jr.
patent: 4269814 (1981-05-01), Asagao et al.
"Rompps Chemie-Lexikon", Franckh'sche Verlagshandlung, Stuttgart, pp. 545, 546, 2077, and 3182 (1975).

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