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Methanol
Skeletal formula o methanol wi some explicit hydrogens addit
Skeletal formula o methanol wi some explicit hydrogens addit
Spacefill model o methanol
Spacefill model o methanol
Stereo skeletal formula o methanol wi aw explicit hydrogen addit
Stereo skeletal formula o methanol wi aw explicit hydrogen addit
Baw an stick model o methanol
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
CAS Nummer
3D model (JSmol)
3DMet B01170
Beilstein Reference
 1098229
ChEBI
ChEMBL
ChemSpider
EC Nummer 200-659-6
Gmelin Reference 449
KEGG
MeSH Methanol
RTECS nummer PC1400000
UNII
UN nummer 1230
Properties
CH
3OH
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)
Solubility in watter
 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[10]
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]
NFPA 704
NFPA 704 four-colored diamondFlammability 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 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
3
3
0
Flash pynt 11 tae 12 °C (52 tae 54 °F; 284 tae 285 K)
Autoigneetion
temperatur
 470[7] °C (878 °F; 743 K)
Explosive leemits 6%-36%[8]
Lethal dose or concentration (LD, LC):
LD50 (Median dose)
 5628 mg/kg (rat, oral)
7300 mg/kg (moose, oral)
12880 mg/kg (rat, oral)
14200 mg/kg (rabbit, oral)[9]
LC50 (Median concentration)
 64,000 ppm (rat, 4 hr)[9]
LCLo (Lawest published)
 33,082 ppm (cat, 6 hr)
37,594 ppm (moose, 2 hr)[9]
US heal exposur leemits (NIOSH):
PEL (Permissible)
 TWA 200 ppm (260 mg/m3)[8]
REL (Recommendit)
 TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin][8]
IDLH (Immediate danger)
 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, forby kent as methyl alcohol amang ither names, 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. ↑ a b c d "Methanol" (PDF). Lab Chem. Valtech. Archived frae the original (PDF) on 10 Mairch 2016. Retrieved 10 Mairch 2016.
  7. ↑ "METHANOL INSTITUTE". Archived frae the original on 11 Mairch 2012. Retrieved 11 Apryle 2017. Unknown parameter |dead-url= ignored (help)
  8. ↑ a b c d NIOSH Pocket Guide tae Chemical Hazards 0397
  9. ↑ a b c "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.
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