Make Formic Acid and Hydroxylamine in one step!!

[Rhodium]

Action of Mineral Acids on Primary Nitroparaffins
S. B. Lippincott & H. B. Hass

Industrial & Engineering Chemistry 31, 118-120 (1939)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/nitro2acid.pdf)

Abstract
Convenient and economical procedures have been developed for the preparation of acetic, propionic, butyric, and isobutyric acids in good yields from the corresponding primary nitroparaffins by refluxing them with 85 per cent sulfuric acid. Hydroxylamine acid sulfate is a by-product of the reaction. Propionohydroxamic acid has been prepared from 1-nitropropane and concentrated sulfuric acid in fair yield.
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As mentioned in

Post 216105

(lugh: "Caution!!!", Chemistry Discourse)

Ueber eine Verbindung von Nickelsulfat mit Hydroxylamin
Rudolf Uhlenhuth

Ann. Chem. 307, 332-334 (1899)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/hydroxylamine.freebase.pdf)