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Methanol CAS#67-56-1

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Chemical Name：Methanol

CAS No.:67-56-1

Molecular Formula：CH4O

Molecular weight:32.04

Sample: Available

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Product Details

Methanol CAS#67-56-1

Methanol is the easiest fatty alcohol. It is a colorless, flammable, worrying liquid with a boiling factor of 64.7°C, a melting factor of -93.90°C, and a relative density of 0.7913. Soluble in water and most natural solvents. Its extreme toxicity can injury the optic nerve. Once swallowed, it can make the eyes blind and even reason death.
Methanol has the established residences of a essential aliphatic alcohol. The three hydrogen atoms on a carbon atom with a hydroxyl crew can be oxidized, orderly producing formaldehyde, formic acid, and carbon dioxide. Therefore, it is mostly used in the synthesis of formaldehyde. Methanol is without difficulty transformed into vital natural synthesis intermediates such as methyl carboxylate, methyl chloride and methylamine, and it is additionally utilized as essential organic solvents, extraction dealers and alcohol denaturants.

Methanol CAS#67-56-1

Methanol Chemical Properties

Melting point	-98 °C(lit.)
Boiling point	65.4 °C(lit.)
density	0.791 g/mL at 25 °C
vapor density	1.11 (vs air)
vapor pressure	410 mm Hg ( 50 °C)
refractive index	n20/D 1.329(lit.)
Fp	52 °F
storage temp.	2-8°C
solubility	benzene: miscible(lit.)
pka	15.2(at 25℃)
form	Liquid Free From Particulates
Specific Gravity	0.793 (20/20℃)
color	<10(APHA)
Odor	Faint alcohol odor detectable at 4 to 6000 ppm (mean = 160 ppm)
Relative polarity	0.762
explosive limit	5.5-44%(V)
Odor Threshold	33ppm
Water Solubility	miscible
λmax	λ: 210 nm Amax: 0.50 λ: 220 nm Amax: 0.30 λ: 230 nm Amax: 0.15 λ: 235 nm Amax: 0.10 λ: 240 nm Amax: 0.05 λ: 260 nm Amax: 0.01 λ: 400 nm Amax: 0.01
Merck	14,5957
BRN	1098229
Henry's Law Constant	4.99 at 25 °C (headspace-GC, Gupta et al., 2000)
Exposure limits	TLV-TWA (200 ppm) (ACGIH), 260mg/m3, 1040mg/m3 (800 ppm) 15minutes (NIOSH); STEL 310mg/m3 (250 ppm); IDLH 25,000 ppm (NIOSH).
Dielectric constant	33.6（20℃）
LogP	-0.770
CAS DataBase Reference	67-56-1(CAS DataBase Reference)
NIST Chemistry Reference	Methyl alcohol(67-56-1)
EPA Substance Registry System	Methanol (67-56-1)

Safety Information

Hazard Codes	Xn,T,F
Risk Statements	10-20/21/22-68/20/21/22-39/23/24/25-23/24/25-11-40-36-36/38-23/25
Safety Statements	36/37-7-45-16-24/25-23-24-26
RIDADR	UN 1170 3/PG 2
OEB	A
OEL	TWA: 200 ppm (260 mg/m3), STEL: 250 ppm (325 mg/m3) [skin]
WGK Germany	1
RTECS	PC1400000
F	3-10
Autoignition Temperature	385 °C
TSCA	Yes
HS Code	2905 11 00
HazardClass	3
PackingGroup	II
Hazardous Substances Data	67-56-1(Hazardous Substances Data)
Toxicity	LD50 oral (rat) 5628 mg/kg LD50 skin (rabbit) 15,840 mg/kg LC50 inhal (rat) >145,000 ppm (1 h) PEL (OSHA) 200 ppm (260 mg/m3) TLV-TWA (ACGIH) 200 ppm (260 mg/m3)—skin STEL (ACGIH) 250 ppm (328 mg/m3)
IDLA	6,000 ppm

Product Usage

Methanol is an essential chemical uncooked fabric for nice chemicals. Its carbonylation at 3.5 MPa and 180-200° C in the presence of catalyst can produce acetic acid and similarly produce acetic anhydride. It reacts with syngas to put together vinyl acetate in the presence of catalyst; reacts with isobutylene to produce tert-butyl methyl ether; put together dimethyl oxalate thru oxidization and carbonylation, and a in addition hydrogenation to produce ethylene glycol; reacts with toluene underneath catalyst and simultaneous oxidization to produce phenylethyl alcohol. It can be used as a appropriate solvent, as a pesticide uncooked material, as an antifreeze agent, as a gas and gas additive (this is receiving growing interest in environmental safety field). It is the fundamental uncooked cloth in the training of formaldehyde, the uncooked cloth in medicinal drug and spices production, a solvent in dyes and paint industries, the uncooked fabric in education of methanol single mobile protein and synthesis of methyl ester.

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