Nomenclature
CAS number: 540-69-2
Formic acid ammonium salt (1:1).
CH
5NO
2; mol wt 63.06.
C 19.05%, H 7.99%, N 22.21%, O 50.74%.
HCOONH
4.
Description and references
Prepd from formic acid and NH3:
Zuffanti, J.
Am. Chem. Soc. 63, 3123 (1941); from methylformate and NH3: Kelly, Cuthbert, US 3122584 (1964 to Allied Chem.).
Properties
Deliquesc crystals or granules. d 1.27. mp 116°. Sol in less than its own wt of water;
sol in alc. Keep tightly closed.Use
In chemical analysis, especially to ppt base metals
from salts of the “noble” metals.