Formic acid

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Formic acid
Skeletal structur o formic acid
3D model o formic acid
Formic acid 85 percent.jpg
Names
IUPAC name
Formic acid[1]
Seestematic IUPAC name
Methanoic Acid
Ither names
Aminic acid; Formylic acid; Hydrogen carboxylic acid; Hydroxymethanone; Hydroxy(oxo)methane; Metacarbonoic acid; Oxocarbinic acid; Oxomethanol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.000.527
EC Nummer 200-579-1
E nummer E236 (preservatives)
KEGG
RTECS nummer LQ4900000
UNII
Properties
CH2O2
Molar mass 46.03 g·mol−1
Appearance colourless fumin liquid
Odour pungent, penetrating
Density 1.220 g/mL
Meltin pynt 8.4 °C (47.1 °F; 281.5 K)
Bylin pynt 100.8 °C (213.4 °F; 373.9 K)
miscible
Solubility miscible wi ether, acetone, ethyl acetate, glycerol, methanol, ethanol
pairtially soluble in benzene, toluene, xylenes
log P −0.54
Acidity (pKa) 3.77 [2]
Refractive index (nD) 1.3714 (20 °C)
Viscosity 1.57 cP at 268 °C
Hazards
Main hazards Corrosive; irritant;
sensitizer.
R-phrases R10 R35
S-phrases (S1/2) S23 S26 S45
NFPA 704
Flammability code 2: Must be moderately heatit or exposed tae relatively heich ambient temperature before igneetion can occur. Flash pynt atween 38 an 93 °C (100 an 200 °F). E.g., diesel fuelHealth code 3: Short exposur could cause serious temporary or residual injury. E.g., chlorine gasReactivity code 1: Normally stable, but can acome unstable at elevatit temperaturs an pressurs. E.g., calciumSpecial hazards (white): no codeNFPA 704 four-colored diamond
2
3
1
Flash pynt 69 °C (156 °F; 342 K)
Explosive leemits 14–34%
Lethal dose or concentration (LD, LC):
700 mg/kg (rat, oral)
Relatit compoonds
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Formic acid (seestematically cried methanoic acid) is the simplest carboxylic acid.

References[eedit | eedit soorce]

  1. PubChem 284
  2. Brown, H. C. et al., in Braude, E. A. and Nachod, F. C., Determination of Organic Structures by Physical Methods, Academic Press, New York, 1955.