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Methanol CAS:67-56-1

Methanol CAS:67-56-1
Outstanding dissolving performance: Methanol is an excellent solvent. It not only can be infinitely miscible with water, but also can dissolve various inorganic salts (such as sodium iodide, calcium chloride) and organic substances. Its dissolving ability is superior to that of ethanol.
High purity quality control: The commercially available high-purity methanol (with a content of ≥ 99.9%) has extremely low evaporation residues (≤ 0.0005%) and moisture content (≤ 0.05%), which can meet the strict requirements for baseline stability in precise analytical experiments such as high-performance liquid chromatography (HPLC).
Extensive chemical activity: As a basic C1 (containing one carbon) chemical raw material, methanol can participate in various chemical reactions such as esterification, carbonylation, dehydration, etc., and is an ideal "foundation" for synthesizing other chemicals.

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Product Details

Methanol (Methanol) is the simplest saturated monohydric alcohol, commonly known as "wood alcohol" or "wood spirit". At room temperature, it is a colorless, volatile, highly flammable liquid with a distinctive pungent odor. As a fundamental bulk chemical raw material, methanol plays an indispensable role in organic synthesis, energy substitution, and fine chemical industries.


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ProjectParameters
English nameMethanol / Methyl alcohol
CAS number67-56-1
Molecular formulaCH₄O / CH₃OH
Molecular weight32.04
Melting point-97.8 °C
Boiling point64.7 - 65 °C
Flash point9 - 12 °C (closed cup)
Self-ignition temperature385 - 464 °C
Explosion limit Density5.5% - 44.0% (Vol)
Vapor0.791 - 0.794 g/mL (20°C)
pressure12.3 - 13.33 kPa (20°C)
SolubilityCompletely miscible with most organic solvents such as water, alcohols, and ethers
UN number1230
Danger category3 (Flammable Liquids) + 6.1 (Toxic Substances)


Core features

  • Physical properties: At room temperature, it is a colorless and transparent liquid that is easy to flow, has a high volatility, and when burned, it produces a smokeless pale blue flame.

  • Chemical properties: Highly flammable. The vapor is heavier than air (density 1.11). It tends to accumulate in low-lying areas or spread along the ground. There is a risk of backfire when exposed to open flames.

  • Safety features: Toxic chemicals, the main target organs are the central nervous system and the optic nerve. Accidental ingestion or excessive inhalation can lead to blindness or even death. During operation, strict airtight ventilation must be maintained.


Main application fieldsTraditional chemical industry and manufacturing

1. Traditional chemical industry and manufacturing

It mainly produces chemical intermediates such as formaldehyde, acetic acid, and methyl tert-butyl ether (MTBE), and then uses them to manufacture dyes, medicines, pesticides, fragrances, and gunpowder, etc.

2. Analysis and Laboratory Applications

High Performance Liquid Chromatography: As a commonly used polar mobile phase, it is used for the separation and purification of compounds.

Solvents and extractants: Used for separating calcium sulfate and magnesium sulfate, determining boron content, and extracting biological samples.

3. Energy and Fuels Sector

Vehicle fuel: It can be directly used as M85/M100 high-proportion methanol fuel, or converted into dimethyl ether to serve as a diesel substitute.

Antifreeze: By taking advantage of its lower freezing point, it is used as an antifreeze component for car windshield washer fluid and industrial pipelines.

4. Emerging Green Applications

Methanol reforming for hydrogen production: As a liquid hydrogen storage medium, it is used in hydrogen supply systems for mobile hydrogen sources or fuel cells.

Methanol protein: Through microbial fermentation, single-cell protein (Single Cell Protein), used for producing animal feed.

Methanol-to-Olefins (MTO): As a key part of the alternative petroleum route, methanol can be used to produce important plastic raw materials such as ethylene and propylene.


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