| CAS No.: | 64-18-6 |
| Molecular Weight: | 46.03 g/mol |
| Chemical Formula | CH2O2 |
Formic acid or Methanoic acid is the simplest carboxylic acid. It is an important intermediate in chemical synthesis and occurs naturally, most notably in some ants. Formic acid is a colorless liquid having a pungent, penetrating odor at room temperature.
General Properties & Specifications of Formic acid or Methanoic acid:
CAS number: 64-18-6
Chemical formula: CH2O2
Molecular weight: 46.03
Appearance: Colorless fuming liquid.
Odor: Pungent, penetrating.
Relative Density: 1.22
Melting point: 8C literature.
Boiling point: 101C literature.
Flash point: 50C literature. (Lowest of the reported).
Auto-ignition temperature: >500C literature.
Boiling point: 101C literature.
Decomposition temperature: 350 C.
Solubility in water: Miscible
Solubility: Miscible with ether, acetone, ethyl acetate, glycerol, methanol, ethanol. Partially soluble in benzene, toluene, xylenes.
Formic Acid FCC Food Grade:
HCOOH
CH2O2 Formula wt 46.03
INS: 236 CAS: [64-18-6]
FEMA: 2487
DESCRIPTION
Formic Acid occurs as a clear, colorless, highly corrosive liquid with a characteristic, pungent odor. It is miscible with water, with alcohol, with glycerin, and with ether. Its specific gravity is about 1.20.
Function: Flavoring adjunct; preservative.
REQUIREMENTS
Identification:
A. Add 2 mL of mercuric chloride to 5 mL of sample, and warm the mixture. A white precipitate of mercurous chloride forms.
B. Neutralize 1 mL of sample with sodium hydroxide, and then add 2 drops in excess and 1 mL of ferric chloride. A deep, red-orange color appears that turns to yellow-orange on the addition of mineral acids.
C. Place 2 mL of sample in a test tube, add 5 mL of sulfuric acid, and test the gas evolved with a lighted splinter. A blue flame characteristic of carbon monoxide is produced.
Assay: Not less than 85.0% of CH2O2.
Acetic Acid: Not more than 0.4%.
Dilution Test: Passes test.
Sulfate: Not more than 0.004%.
Formic Acid, 96% Analytical Reagent Grade:
HCOOH --- Formula Wt 46.03 --- CAS Number 64-18-6
CAUTION: Slow decomposition of this reagent may produce pressure in the bottle. Loosen cap occasionally to vent the gas.
REQUIREMENTS
Assay: 96.0% HCOOH
MAXIMUM ALLOWABLE
Color (APHA): 15
Dilution test: Passes test
Residue after evaporation: 0.003%
Acetic acid (CH3COOH): 0.4%
Ammonium (NH4): 0.005%
Chloride (Cl): 0.001%
Sulfate (SO4): 0.003%
Sulfite (SO3): Passes test
Heavy metals (as Pb): 0.001%
Iron (Fe): 0.001%.
Formic Acid, 88% Analytical Reagent Grade:
HCOOH --- Formula Wt 46.03 --- CAS Number 64-18-6
REQUIREMENTS
Assay: 88.0% HCOOH
