Acetic acid

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

Acetic acid

Names
IUPAC name Acetic acid[3][4]
Seestematic IUPAC name Ethanoic acid[5]
Ither names Methanecarboxylic acid[1][2]
Identifiers
CAS Nummer	64-19-7 Y
3D model (JSmol)	Interactive eemage
3DMet	B00009
Abbreviations	AcOH
Beilstein Reference	506007
ChEBI	CHEBI:15366 Y
ChEMBL	ChEMBL539 Y
ChemSpider	171 Y
DrugBank	DB03166 Y
EC Nummer	200-580-7
Gmelin Reference	1380
IUPHAR/BPS	1058
KEGG	D00010 N
MeSH	Acetic+acid
PubChem CID	176
RTECS nummer	AF1225000
UNII	Q40Q9N063P Y
UN nummer	2789
InChI InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4) Y Key: QTBSBXVTEAMEQO-UHFFFAOYSA-N Y
SMILES CC(O)=O
Properties
Chemical formula	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
Solubility in watter	Miscible
log P	-0.322
Acidity (pKa)	4.76
Basicity (pKb)	9.198
Refractive index (nD)	1.371
Viscosity	1.22 mPa s
Dipole moment	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
GHS signal wird	Danger
GHS hazard statements	H226, H314
GHS precautionary statements	P280, P305+351+338, P310
NFPA 704	2 3 0
Flash pynt	40 °C (104 °F; 313 K)
Explosive leemits	4-16%
Lethal dose or concentration (LD, LC):
LD50 (Median dose)	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).
N verify (whit is YN ?)
Infobox references