Formic acid

vapor density

1.6 (vs air)

vapor pressure

44.8 mmHg ( 20 °C)

Assay

97.5-98.5% (T)

form

liquid

autoignition temp.

1004 °F

expl. lim.

57 %

technique(s)

LC/MS: suitable

impurities

1.5-2.5% water

evapn. residue

≤0.002%

refractive index

n20/D 1.370 (lit.)

bp

100-101 °C (lit.)

mp

8.2-8.4 °C (lit.)

density

1.22 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤5 mg/kg
sulfate (SO₄^2-): ≤5 mg/kg
sulfite (SO₃^2-): ≤10 mg/kg

cation traces

Ca: ≤1.0 mg/kg
Co: ≤0.1 mg/kg
Cr: ≤0.1 mg/kg
Cu: ≤5.0 mg/kg
Fe: ≤0.5 mg/kg
Mn: ≤0.1 mg/kg
NH₄⁺: ≤10 mg/kg
Ni: ≤0.1 mg/kg
Pb: ≤0.1 mg/kg
Zn: ≤0.5 mg/kg

SMILES string

OC=O

InChI

1S/CH2O2/c2-1-3/h1H,(H,2,3)

InChI key

BDAGIHXWWSANSR-UHFFFAOYSA-N