Methanol

Methanol

CAS No.: 67-56-1
Molecular Formula: CH4O
Molecular weight: 32.04
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product description
Methanol, also known as "wood alcohol", is an organic compound and the simplest saturated monohydric alcohol. It is a colorless, transparent, flammable, volatile toxic liquid. Ingestion of 5 to 10 ml can cause blindness, and drinking a large amount can lead to death. Methanol is non-corrosive to metals at room temperature (except lead and aluminum) and has a slight alcohol smell. Relative density 0.792 (20/4℃), melting point -97.8℃, boiling point 64.5℃, flash point 12.22℃, autoignition point 463.89℃, vapor density 1.11, vapor pressure 13.33KPa (100mmHg21.2℃), vapor and air mixture explosion limit 6 to 36.5% (volume ratio), miscible with water, ethanol, ether, benzene, ketones, halogenated hydrocarbons and many other organic solvents. It is usually used as a solvent, antifreeze, fuel or neutralizer.


Chemical Properties

PropertyValue

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

Color

<10(APHA)

Specific Gravity

0.793 (20/20℃)

Relative polarity

0.762

Odor

Faint alcohol odor detectable at 4 to 6000 ppm (mean = 160 ppm)

Explosive limit

5.5-44%(V)

Odor Threshold

33ppm

Water Solubility

miscible

λmax

λ: 210 nm Amax: 0.50λ: 220 nm Amax: 0.30λ: 230 nm Amax: 0.15λ: 235 nm Amax: 0.10λ: 240 nm Amax: 0.05λ: 260 nm Amax: 0.01λ: 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

PropertyValue

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

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/kgLD50 skin (rabbit)15,840 mg/kgLC50 inhal (rat)>145,000 ppm (1 h)PEL (OSHA)200 ppm (260 mg/m3)TLV-TWA (ACGIH)200 ppm (260 mg/m3)—skinSTEL (ACGIH)250 ppm (328 mg/m3)

IDLA

6,000 ppm


Product Usage

Methanol, often referred to as wood alcohol, is a fundamental building block in the global chemical industry. Its most significant application is as a feedstock for producing formaldehyde, acetic acid, and various plastics, fibers, and resins. In the energy sector, methanol is gaining prominence as a clean-burning fuel or fuel additive, contributing to reduced emissions in marine and automotive transport. Furthermore, it serves as a high-performance industrial solvent for paints, varnishes, and inks, and is essential in wastewater treatment as a carbon source for denitrification.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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Q1: Are Your Products Compliant With International Standards?

A1: Yes, our company holds a number of internationally recognized core certifications. All production and operation activities strictly follow international environmental, safety and quality standards, and each batch of products is accompanied by a compliance test report to meet the chemical industry requirements in different regions around the world.


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A2: Yes, we have a professional R&D team and refined production capacity. We can customize chemical products of different specifications and performances according to customers' specific needs, and provide full-process technical support to meet the personalized application needs of downstream industries.


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A3: The delivery cycle varies according to product type, order quantity and destination. We have a complete global supply chain system to ensure fast and safe delivery of goods. For specific cycle, you can consult our sales team for detailed information.


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A4: You can contact our customer service or sales team to specify the specific model and specification of the required samples. We will provide free samples according to the actual situation, and the sample express fee can be negotiated.

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