Method for producing an alkali metal pyrophosphate

Details Method for producing an alkali metal pyrophosphate Method for producing an alkali metal pyrophosphate

1974-05-20

1976-09-21

Vertiz, Oscar R.

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

C01B 1516, C01B 2526

Patent

active

039819744

ABSTRACT:
The present invention relates to a method for producing an alkali metal pyrophosphate useful, for example, as a plant food. Broadly, the method comprises reacting an alkali metal nitrate and aqueous phosphoric acid in the presence of catalytic amount of a metal oxide at a temperature of at least about 700.degree.C to produce a substantially pure alkali metal pyrophosphate and gaseous reaction products.

REFERENCES:
patent: 3473889 (1969-10-01), Shen

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