Carbinol

Methanol

Names
Preferred IUPAC name Methanol
Other names Carbinol Columbian spirits Hydroxymethane Methyl alcohol Methyl hydrate Methyl hydroxide Methylic alcohol Methylol Pyroligneous spirit Wood alcohol Wood naphtha Wood spirit
Identifiers
CAS Number	67-56-1 Y
3D model (Jmol)	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	Methanol
PubChem	887
RTECS number	PC1400000
UNII	Y4S76JWI15 Y
UN number	1230
InChI InChI=1S/CH4O/c1-2/h2H,1H3 Y Key: OKKJLVBELUTLKV-UHFFFAOYSA-N Y InChI=1/CH4O/c1-2/h2H,1H3 Key: OKKJLVBELUTLKV-UHFFFAOYAX
SMILES CO
Properties
Chemical formula	CH 3OH
Molar mass	32.04 g mol−1
Appearance	Colorless liquid
Density	0.792 g·cm−3
Melting point	−97.6 °C (−143.7 °F; 175.6 K)
Boiling point	64.7 °C (148.5 °F; 337.8 K)
Solubility in water	miscible
log P	-0.69
Vapor pressure	13.02 kPa (at 20 °C)
Acidity (pKa)	15.5
Magnetic susceptibility (χ)	-21.40·10−6 cm3/mol
Refractive index (nD)	1.33141
Viscosity	0.545 mPa×s (at 25 °C)
Dipole moment	1.69 D
Hazards
Safety data sheet	See: data page
GHS pictograms
GHS signal word	Danger
GHS hazard statements	H225, H301, H311, H331, H370
GHS precautionary statements	P210, P233, P240, P241, P242, P243, P260, P264, P270, P280, P301+310, P303+361+353, P304+340, P330
EU classification (DSD)	F T
R-phrases	R11, R23/24/25, R39/23/24/25
S-phrases	(S1/2), S7, S16, S36/37, S45
NFPA 704	3 1 0
Flash point	11 to 12 °C (52 to 54 °F; 284 to 285 K)
Autoignition temperature	470 °C (878 °F; 743 K)
Explosive limits	6%-36%
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)
LC50 (median concentration)	64,000 ppm (rat, 4 hr)
LCLo (lowest published)	33,082 ppm (cat, 6 hr) 37,594 ppm (mouse, 2 hr)
US health exposure limits (NIOSH):
PEL (Permissible)	TWA 200 ppm (260 mg/m3)
REL (Recommended)	TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin]
IDLH (Immediate danger)	6000 ppm
Related compounds
Related compounds	Methanethiol Silanol
Supplementary data page
Structure and properties	Refractive index (n), Dielectric constant (εr), etc.
Thermodynamic data	Phase behaviour solid–liquid–gas
Spectral data	UV, IR, NMR, MS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Methanol (/ˈmɛθənɒl/), also known as methyl alcohol among others, is a chemical with the formula CH₃OH (often abbreviated MeOH). Methanol acquired the name "wood alcohol" because it was once produced chiefly as a byproduct of the destructive distillation of wood. Today, industrial methanol is produced in a catalytic process directly from carbon monoxide, carbon dioxide, and hydrogen.

Methanol is the simplest alcohol, being only a methyl group linked to a hydroxyl group. It is a light, volatile, colorless, flammable liquid with a distinctive odor very similar to that of ethanol (drinking alcohol). However, unlike ethanol, methanol is highly toxic and unfit for consumption. At room temperature, it is a polar liquid, and is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol. It is also used for producing biodiesel via transesterification reaction.