മെഥനോൾ

CH₃OH എന്ന തന്മാത്രാ ഘടനയുള്ള രാസവസ്തുവാണ് മെഥനോൾ, ( മീഥൈൽ ആൽക്കഹോൾ / വുഡ് ആൽക്കഹോൾ / വുഡ് നാഫ്ത / വൂഡ് സ്പിരിറ്റ്) ^[14]

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
3DMet	B01170
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
തന്മാത്രാ വാക്യം
Molar mass	0 g mol−1
Appearance	Colourless liquid
Odor	Faint and similar to ethanol
സാന്ദ്രത	0.792 g/cm3[2]
ദ്രവണാങ്കം
ക്വഥനാങ്കം
Solubility in water	miscible
log P	−0.69
ബാഷ്പമർദ്ദം	13.02 kPa (at 20 °C)
അമ്ലത്വം (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
Hazards[8][9]
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]
Safety data sheet
GHS pictograms	[11]
GHS Signal word	Danger[11]
GHS hazard statements	H225, H301, H302, H305, H311, H331, H370[11]
GHS precautionary statements	P210, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P301+330+331, P310, P302+352, P312, P303+361+353, P304+340, P311, P305+351+338, P307+311, P337+313, P361, P363, P370+378, P403+233[11]
Flash point	{{{value}}}
Autoignition temperature
Explosive limits	6–36%[12]
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)[13]
LC50 (median concentration)	64,000 ppm (rat, 4 h)[13]
LCLo (lowest published)	33,082 ppm (cat, 6 h) 37,594 ppm (mouse, 2 h)[13]
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 200 ppm (260 mg/m3)[12]
REL (Recommended)	TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin][12]
IDLH (Immediate danger)	6000 ppm[12]
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

അവലംബം

1. Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 692. doi:10.1039/9781849733069-00648. ISBN 978-0-85404-182-4.
2. Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
3. Ballinger, P.; Long, F. A. (1960). "Acid Ionization Constants of Alcohols. II. Acidities of Some Substituted Methanols and Related Compounds". J. Am. Chem. Soc. 82 (4): 795–798. doi:10.1021/ja01489a008.
4. "Methyloxonium". pubchem.ncbi.nlm.nih.gov. Archived from the original on 21 ഡിസംബർ 2018. Retrieved 21 ഡിസംബർ 2018.
5. "Methanolate". pubchem.ncbi.nlm.nih.gov. Archived from the original on 21 ഡിസംബർ 2018. Retrieved 21 ഡിസംബർ 2018. Methoxide is an organic anion that is the conjugate base of methanol. ... It is a conjugate base of a methanol.
6. "RefractiveIndex.INFO – Refractive index database". refractiveindex.info. Archived from the original on 23 ഫെബ്രുവരി 2017. Retrieved 14 ഫെബ്രുവരി 2012.
7. González, Begoña (2007). "Density, dynamic viscosity, and derived properties of binary mixtures of methanol or ethanol with water, ethyl acetate, and methyl acetate at T = (293.15, 298.15, and 303.15) K". The Journal of Chemical Thermodynamics. 39 (12): 1578–1588. Bibcode:2007JChTh..39.1578G. doi:10.1016/j.jct.2007.05.004.
8. "The Emergency Response Safety and Health Database: Systematic Agent: METHANOL". Centers for Disease Control and Prevention. Archived from the original on 23 ഏപ്രിൽ 2009. Retrieved 3 ഓഗസ്റ്റ് 2018.
9. "PubChem: Safety and Hazards - GHS Classification". National Center for Biotechnology Information, U.S. National Library of Medicine. Archived from the original on 20 ഓഗസ്റ്റ് 2018. Retrieved 20 ഓഗസ്റ്റ് 2018.
10. Toxicity on PubChem Archived 20 August 2018 at the Wayback Machine.
11. "Methanol" (PDF). Lab Chem. Valtech. Archived (PDF) from the original on 10 മാർച്ച് 2016. Retrieved 10 മാർച്ച് 2016.
12. "NIOSH Pocket Guide to Chemical Hazards #0397". National Institute for Occupational Safety and Health (NIOSH).
13. "Methanol". Immediately Dangerous to Life and Health. National Institute for Occupational Safety and Health (NIOSH).
14. https://en.wikipedia.org/wiki/Methanol