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695076

Sigma-Aldrich

Formic acid

ACS reagent, ≥96%

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About This Item

Linear Formula:
HCOOH
CAS Number:
Molecular Weight:
46.03
Beilstein/REAXYS Number:
1209246
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

1.6 (vs air)

vapor pressure

44.8 mmHg ( 20 °C)

assay

≥96%

form

liquid

autoignition temp.

1004 °F

expl. lim.

57 %

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.)

solubility

water: miscible

density

1.22 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.003%
sulfite (SO32-): passes test

cation traces

Fe: ≤0.001%
NH4+: ≤0.005%
heavy metals (as Pb): ≤0.001%

application(s)

sample preparation

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 carboxylic acid produced by the hydrolysis of methyl formate or formamide or from its salts. It is primarily used in dyeing, textile, leather, rubber, chemical, and pharmaceutical industries.

Application

Formic acid can be used as a reagent in the:
  • Co-Nx-catalyzed one-pot reductive amination of carbonyl compounds with nitro compounds to synthesize secondary amines.
  • Photoreduction of polycyclic and heterocyclic nitro arenes to corresponding amines.
  • Pd-catalyzed chemoselective hydrogenation of olefins to saturated hydrocarbons.

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Danger

Hazard Classifications

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

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

121.1 °F - closed cup

flash_point_c

49.5 °C - closed cup


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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Electron momentum spectroscopy of formic acid.
Nixon KL, et al.
Chemical Physics Letters, 474(1), 23-27 (2009)
Direct formic acid fuel cells.
Rice C, et al.
Journal of Power Sources, 111(1), 83-89 (2002)
Photodissociation of formic acid.
Su H, et al.
J. Chem. Phys. , 113(5), 1891-1897 (2000)
The crystal structure of formic acid.
Holtzberg F, et al.
Acta Crystallographica, 6(2), 127-130 (1953)
Switchgrass pretreatment and hydrolysis using low concentrations of formic acid.
Marzialetti T, et al.
Journal of Chemical Technology and Biotechnology, 86(5), 706-713 (2011)

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