Process and catalyst for determining nitrogen in a sample accord

Details Process and catalyst for determining nitrogen in a sample accord Process and catalyst for determining nitrogen in a sample accord

1978-10-06

1980-10-21

Marantz, Sidney

Chemistry: physical processes

Physical processes

Crystallization

252461, G01N 3110, G01N 3116, B01J 2316

Patent

active

042291801

ABSTRACT:
An antimonate, such as potassium antimonate, is used as the destruction catalyst in nitrogen determinations according to the Kjeldahl principle. Preferred catalyst comprises potassium antimonate together with potassium sulfate (for increasing the boiling point of the destruction mixture) and minor amounts of zinc sulfate and cupric sulfate (as co-catalysts).

REFERENCES:
patent: 3335097 (1967-08-01), Gillis
patent: 3346659 (1967-10-01), Barclay
patent: 3525701 (1970-08-01), Barclay
patent: 3627817 (1971-12-01), Barnett
patent: 3709829 (1973-01-01), Gasson
patent: 3984353 (1976-10-01), Sergunkin
Chemical Abstracts, 78: 146344x (1973).

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