33015-M

Formic acid

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

• Lineární vzorec: HCOOH
• Číslo CAS: 64-18-6
• Molekulová hmotnost: 46.03
• Beilstein/REAXYS Number: 1209246
• EC Number: 200-579-1
• MDL number: MFCD00003297
• UNSPSC Code: 12352106
• PubChem Substance ID: 329754437
• NACRES: NA.21

Vlastnosti

• 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 (C₂O₄^2-): ≤50 mg/kg; sulfate (SO₄^2-): ≤5 mg/kg; sulfite (SO₃^2-): ≤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

Popis

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

Bezpečnostní informace

• pictograms: GHS02,GHS06,GHS05
• signalword: Danger
• hcodes: H226,H302,H314,H331
• pcodes: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A
• supp_hazards: EUH071
• 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