Nomenclature
CAS number: 141-53-7
Formic acid sodium salt (1:1).
CHNaO
2; mol wt 68.01.
C 17.66%, H 1.48%, Na 33.80%, O 47.05%.
HCOONa.
Properties
White, deliquesc granules or cryst powder; slight
odor of formic acid. d 1.92. mp 253°;
at higher temp dec into sodium oxalate and hydrogen, then into sodium
carbonate. Sol in ≈1.3 parts water; sol in glycerol, slightly in
alcohol. The aq soln is neutral. pH ≈7. Has buffering action. Keep well closed.Use
In dyeing and printing fabrics; also in anal. chemistry
as a precipitant for the “noble” metals. Solubilizes trivalent metal
ions in soln by forming complex ions. Buffering action adjusts the
pH of strong mineral acids to higher values.
Therapeutic Category
Caustic, astringent.
Keywords
Astringent