Acetic acid /əˈstk/ (seestematically named ethanoic acid /ˌɛθəˈnk/) is an organic compoond wi the chemical formula CH3COOH (an aa written as CH3CO2H or C2H4O2).

Acetic acid
Skeletal formula o acetic acid
Skeletal formula o acetic acid
Spacefill model o acetic acid
Spacefill model o acetic acid
Skeletal formula o acetic acid wi aw explicit hydogens addit
Skeletal formula o acetic acid wi aw explicit hydogens addit
Baw an stick model o acetic acid
Baw an stick model o acetic acid
Sample o acetic acid in a reagent bottle
Names
IUPAC name
Acetic acid[3][4]
Seestematic IUPAC name
Ethanoic acid[5]
Ither names
Methanecarboxylic acid[1][2]
Identifiers
3D model (JSmol)
3DMet B00009
Abbreviations AcOH
506007
ChEBI
ChEMBL
ChemSpider
DrugBank
EC Nummer 200-580-7
Gmelin Reference 1380
KEGG
MeSH Acetic+acid
RTECS nummer AF1225000
UNII
UN nummer 2789
Properties
C2H4O2
Molar mass 60.05 g·mol−1
Appearance Colourless liquid
Odour vinegar-like
Density 1.049 g cm-3
Meltin pynt 16 °C; 61 °F; 289 K
Bylin pynt 118 °C; 244 °F; 391 K
Miscible
log P -0.322
Acidity (pKa) 4.76
Basicity (pKb) 9.198
Refractive index (nD) 1.371
Viscosity 1.22 mPa s
1.74 D
Thermochemistry
Speceefic heat capacity, C 123.1 J K-1 mol-1
Staundart molar
entropy
So298
158.0 J K-1 mol-1
Std enthalpy o
formation
ΔfHo298
-483.88--483.16 kJ mol-1
Std enthalpy o
combustion
ΔcHo298
-875.50--874.82 kJ mol-1
Hazards
GHS pictograms The flame pictogram in the Globally Harmonized Seestem o Classification an Labelling o Chemicals (GHS) The corrosion pictogram in the Globally Harmonized Seestem o Classification an Labelling o Chemicals (GHS)
GHS signal wird Danger
GHS hazard statements H226, H314
GHS precautionary statements P280, P305+351+338, P310
NFPA 704
NFPA 704 four-colored diamondFlammability 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 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogenSpecial hazards (white): no code
2
3
0
Flash pynt 40 °C (104 °F; 313 K)
Explosive leemits 4-16%
Lethal dose or concentration (LD, LC):
3.31 g kg-1, oral (rat)
Relatit compoonds
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
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Infobox references

References eedit

  1. Scientific literature reviews on generally recognized as safe (GRAS) food ingredients. National Technical Information Service. 1974. p. 1.
  2. "Chemistry", volume 5, Encyclopedia Britannica, 1961, page 374
  3. IUPAC, Commission on Nomenclature of Organic Chemistry (1993). "Table 28(a) Carboxylic acids and related groups. Unsubstituted parent structures". A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993). Blackwell Scientific publications. ISBN 0-632-03488-2. Archived frae the original on 25 December 2018. Retrieved 28 Apryle 2014.
  4. "Acetic Acid - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information.
  5. IUPAC Provisional Recommendations 2004 Chapter P-12.1; page 4