- Sodium formate
Chembox new
Name = Sodium formate
ImageFile = Sodium-formate-2D.png
ImageSize = 200px
ImageName = Structural formula of sodium formate
OtherNames = formic acid, sodium salt
Section1 = Chembox Identifiers
CASNo = 141-53-7
EINECS = 205-488-0
Section2 = Chembox Properties
Formula = HCOONa
MolarMass = 68.01 g/mol
Appearance = white granules
deliquescent
Density = 1.92 g/cm³, solid (20°C)
Solubility = 97g/100ml water (20°C)
MeltingPt = 253°C
BoilingPt = decomposes
pKa = 7.0-8.5 (0.1M)
Section7 = Chembox Hazards
EUClass = not listed
NFPA-H = 1
NFPA-F =
NFPA-R =Sodium formate, HCOONa, is the sodium salt of
formic acid , HCOOH. It usually appears as a whitedeliquescent powder.Uses
Sodium formate is used in several fabric dying and printing processes. It is also used as a
buffering agent for strong mineral acids to increase theirpH .Preparation
Sodium formate can be prepared in the laboratory by neutralizing
formic acid withsodium carbonate . It can also be obtained by reactingchloroform with an alcoholic solution ofsodium hydroxide .::CHCl3 + 4NaOH → HCOONa + 3NaCl + 2H2O
or by reacting
sodium hydroxide withchloral hydrate .::C2HCl3(OH)2 + NaOH → CHCl3 + HCOONa + H2O
The latter method is generally preferred to the former because the low aqueous solubility of CHCl3 makes it easier to separate out from the sodium formate solution, by fractional crystallization, than the soluble NaCl would be.
Commercially sodium formate is produced by absorbing
carbon monoxide under pressure in solidsodium hydroxide at 160 °Cee also
*
sodium acetate References
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