Methanol

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Nae tae be confused wi menthol or methanal.
Methanol
Skeletal formula o methanol wi some explicit hydrogens addit
Spacefill model o methanol
Stereo skeletal formula o methanol wi aw explicit hydrogen addit
Baw an stick model o methanol
Names
Preferred IUPAC name
Methanol[1]
Ither names
Carbinol
Columbian spirits
Hydroxymethane
Methyl alcohol
Methyl hydrate
Methyl hydroxide
Methylic alcohol
Methylol
Pyroligneous spirit
Wood alcohol
Wood naphtha
Wood spirit
Identifiers
Jmol-3D images Image
3DMet {{{value}}}
Beilstein Reference 1098229
ChEBI CHEBI:17790 YesY
ChEMBL ChEMBL14688 YesY
ChemSpider 864 YesY
ECHA InfoCard 100.000.599
EC Nummer 200-659-6
Gmelin Reference 449
KEGG D02309 YesY
MeSH Methanol
RTECS nummer PC1400000
UNII Y4S76JWI15 YesY
UN nummer 1230
Properties
CH
3
OH
Molar mass 32.04 g mol−1
Appearance Colourless liquid
Density 0.792 g·cm−3[2]
Meltin pynt −97.6 °C (−143.7 °F; 175.6 K)
Bylin pynt 64.7 °C (148.5 °F; 337.8 K)
miscible
log P -0.69
Vapour pressur 13.02 kPa (at 20 °C)
Acidity (pKa) 15.5[3]
Magnetic susceptibility -21.40·10−6 cm3/mol
Refractive index (nD) 1.33141[4]
Viscosity 0.545 mPa×s (at 25 °C) [5]
Dipole moment 1.69 D
Hazards
GHS pictograms The flame pictogram in the Globally Harmonized Seestem o Classification an Labelling o Chemicals (GHS) The skull-an-crossbones pictogram in the Globally Harmonized Seestem o Classification an Labellin o Chemicals (GHS) The health hazard pictogram in the Globally Harmonized Seestem o Classification an Labellin of Chemicals (GHS)[6]
GHS signal wird Danger [6]
GHS hazard statements H225, H301, H311, H331, H370[6]
GHS precautionary statements P210, P233, P240, P241, P242, P243, P260, P264, P270, P280, P301+310, P303+361+353, P304+340, P330[6]
EU clessification Flammable F Toxic T
R-phrases R11, R23/24/25, R39/23/24/25
S-phrases (S1/2), S7, S16, S36/37, S45
NFPA 704
Flammability code 3: Liquids an solids that can be ignited unner awmaist ae ambient temperature condeetions. Flash pynt atween 23 an 38 °C (73 an 100 °F). E.g., gasoline) Health code 1: Exposur would cause irritation but anly minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even unner fire exposur condeetions, an is nae reactive wi watter. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash pynt 11 tae 12 °C (52 tae 54 °F; 284 tae 285 K)
470[7] °C (878 °F; 743 K)
Explosive leemits 6%-36%[8]
Lethal dose or concentration (LD, LC):
5628 mg/kg (rat, oral)
7300 mg/kg (moose, oral)
12880 mg/kg (rat, oral)
14200 mg/kg (rabbit, oral)[9]
64,000 ppm (rat, 4 hr)[9]
33,082 ppm (cat, 6 hr)
37,594 ppm (moose, 2 hr)[9]
US health exposure limits (NIOSH):
TWA 200 ppm (260 mg/m3)[8]
TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin][8]
6000 ppm[8]
Relatit compoonds
Relatit compoonds
Methanethiol
Silanol
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

Methanol, an aa kent as methyl alcohol amang ithers, is a chemical wi the formula CH3OH (eften abbreviatit MeOH). Methanol acquired the name "wid alcohol" acause it wis ance produced chiefly as a biproduct o the destructive distillation o wid. The day, industrial methanol is produced in a catalytic process directly frae carbon monoxide, carbon dioxide, an hydrogen.

References[eedit | eedit soorce]

  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-FP001. 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. "RefractiveIndex.INFO - Refractive index database". 
  5. 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. doi:10.1016/j.jct.2007.05.004. 
  6. 6.0 6.1 6.2 6.3 "Methanol" (PDF). Lab Chem. Valtech. Retrieved 10 Mairch 2016. 
  7. "METHANOL INSTITUTE". Archived frae the oreeginal on 2012-03-11. 
  8. 8.0 8.1 8.2 8.3 NIOSH Pocket Guide tae Chemical Hazards 0397
  9. 9.0 9.1 9.2 "Methanol". Immediately Dangerous to Life and Health. National Institute for Occupational Safety and Health (NIOSH). 
  10. "The Emergency Response Safety and Health Database: Systematic Agent: METHANOL". Centers for Disease Control and Prevention. Retrieved 26 August 2009.