മെഥനോൾ

CH₃OH എന്ന തന്മാത്രാ ഘടനയുള്ള രാസവസ്തുവാണ് മെഥനോൾ, ( മീഥൈൽ ആൽക്കഹോൾ / വുഡ് ആൽക്കഹോൾ / വുഡ് നാഫ്ത / വൂഡ് സ്പിരിറ്റ്) ^[17]

മെന്തോൾ  എന്ന ലേഖനവുമായി ആശയക്കുഴപ്പം ഒഴിവാക്കുക.  

മെഥനോൾ

Space filling model of methanol Ball and stick model of methanol
Names
Preferred IUPAC name Methanol[1]
Other names Carbinol Columbian spirits Hydroxymethane MeOH Methyl alcohol Methyl hydrate Methyl hydroxide Methylic alcohol Methylol Methylene hydrate, primary alcohol Pyroligneous spirit Wood alcohol Wood naphtha Wood spirit
Identifiers
CAS Number	67-56-1 Y
3D model (JSmol)	Interactive image
Beilstein Reference	1098229
ChEBI	CHEBI:17790 Y
ChEMBL	ChEMBL14688 Y
ChemSpider	864 Y
ECHA InfoCard	100.000.599
EC Number	200-659-6
Gmelin Reference	449
KEGG	D02309 Y
MeSH	{{{value}}}
PubChem CID	887
RTECS number	PC1400000
UNII	Y4S76JWI15 Y
UN number	1230
CompTox Dashboard (EPA)	DTXSID2021731
InChI
SMILES
Properties
Chemical formula	CH3OH
Molar mass	32.042 g·mol−1
Appearance	Colourless liquid
Odor	Faint and similar to ethanol
സാന്ദ്രത	0.792 g/cm3[2]
ദ്രവണാങ്കം
ക്വഥനാങ്കം	64.7 °C (148.5 °F; 337.8 K)
Solubility in water	miscible
log P	−0.69
ബാഷ്പമർദ്ദം	13.02 kPa (at 20 °C)
Acidity (pKa)	15.5[3]
Conjugate acid	Methyloxonium[4]
Conjugate base	Methanolate[5]
Magnetic susceptibility (χ)	−21.40·10−6 cm3/mol
Refractive index (nD)	1.33141[6]
വിസ്കോസിറ്റി	0.545 mPa·s (at 25 °C)[7]
Dipole moment	1.69 D
Thermochemistry
Heat of combustion, higher value (HHV)	725.7 kJ/mol, 173.4 kcal/mol, 5.77 kcal/g
Hazards[8][9]
Occupational safety and health (OHS/OSH):
Main hazards	Methanol and its vapours are flammable. Moderately toxic for small animals – Highly toxic to large animals and humans (in high concentrations) – May be fatal/lethal or cause blindness and damage to the liver, kidneys, and heart if swallowed – Toxicity effects from repeated over exposure have an accumulative effect on the central nervous system, especially the optic nerve – Symptoms may be delayed, become severe after 12 to 18 hours, and linger for several days after exposure[10]
GHS labelling:
Pictograms	[11]
Signal word	Danger[11]
Hazard statements	H225, H301, H302, H305, H311, H331, H370[11]
Precautionary statements	P210, P233, P235, P240, P241, P242, P243, P260, P264, P270, P271, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P311, P312, P337+P313, P361, P363, P370+P378, P403+P233, P405, P501[11]
NFPA 704 (fire diamond)	[8][12] 1 3 0
Flash point	11- തൊട്ട് 12 °C (52- തൊട്ട് 54 °F; 284- തൊട്ട് 285 K)
Autoignition temperature	470 °C (878 °F; 743 K)[13] 385 °C (725 °F; 658 K)[14]
Explosive limits	6–36%[15]
Lethal dose or concentration (LD, LC):
LD50 (median dose)	5628 mg/kg (rat, oral) 7300 mg/kg (mouse, oral) 12880 mg/kg (rat, oral) 14200 mg/kg (rabbit, oral)[16]
LC50 (median concentration)	64,000 ppm (rat, 4 h)[16]
LCLo (lowest published)	33,082 ppm (cat, 6 h) 37,594 ppm (mouse, 2 h)[16]
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 200 ppm (260 mg/m3)[15]
REL (Recommended)	TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin][15]
IDLH (Immediate danger)	6000 ppm[15]
Safety data sheet (SDS)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | colspan=2 |  N verify (what is: Y/N?) Infobox references