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33015-M

Sigma-Aldrich

Formic acid

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98%

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Linear Formula:
HCOOH
CAS Number:
64-18-6
Molecular Weight:
46.03
Beilstein:
1209246
EC Number:
200-579-1
MDL number:
MFCD00003297
UNSPSC Code:
12352106
PubChem Substance ID:
329754437
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

100

Agency

reag. Ph. Eur.

vapor density

1.6 (vs air)

vapor pressure

44.8 mmHg ( 20 °C)

Assay

≥98%

form

liquid

autoignition temp.

1004 °F

expl. lim.

57 %

technique(s)

mass spectrometry (MS): suitable

impurities

≤0.001% ammonium (NH4)
≤0.001% non-volatile matter
≤0.005% acetic acid (CH3COOH)

refractive index

n20/D 1.370 (lit.)

pH

2.2 (20 °C, 2.2 g/L)

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
oxalate (C2O42-): ≤50 mg/kg
sulfate (SO42-): ≤5 mg/kg
sulfite (SO32-): ≤10 mg/kg

cation traces

Ag: ≤0.02 mg/kg
Al: ≤0.05 mg/kg
Ba: ≤0.05 mg/kg
Be: ≤0.02 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.2 mg/kg
Cd: ≤0.05 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.05 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤2 mg/kg
Ge: ≤0.05 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.02 mg/kg
Mg: ≤0.5 mg/kg
Mn: ≤0.05 mg/kg
Mo: ≤0.02 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.05 mg/kg
Pb: ≤0.02 mg/kg
Sr: ≤0.02 mg/kg
Ti: ≤0.1 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.05 mg/kg
Zn: ≤0.05 mg/kg
Zr: ≤0.1 mg/kg

SMILES string

OC=O

InChI

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

InChI key

BDAGIHXWWSANSR-UHFFFAOYSA-N

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General description

Formic acid is a simple organic acid. Formate group (-COOH) plays an important role to compose the complex biomolecules (acetic acid, glycine, various amino acids). It exhibits high polarity and its dipole moment is 1.41Debye. It has been reported as a substiute for fuel in polymer electrolyte membrane (PEM) fuel cells. Its permeation through Nafion™ 112 and 117 membranes has been compared with that of methanol.

Application

Formic acid has been used to evaluate its first absolute differential elastic electron scattering cross-sections and angular differential cross-sections (incident electron energies in the range of 1.8 and 50eV). It may be used in the preparation of HPLC buffer for mass spectrometric studies.

Legal Information

Nafion is a trademark of The Chemours Company FC, LLC

Signal Word

Danger

Hazard Statements

H226,H302,H314,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

Supplementary Hazards

EUH071

WGK

WGK 1

Flash Point(F)

121.1 °F

Flash Point(C)

49.5 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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