Product Information: Methanol

Substance Name: Methanol / CH₃OH

Country of Manufacture: Islamic Republic of Iran

CAS Number: 67-56-1

UN Number: 1230

REACH Registration Number: 0046-44-2119433307-01

Synonyms: Methyl alcohol, methyl hydrate, wood alcohol, methyl hydroxide

Applications: Feedstock for producing formaldehyde and acetic acid, industrial solvent, fuel

Chemical Composition

Hazardous Substance: Methanol

Hazard Labels: Toxic (6); Flammable liquids - Toxic (3+6,1)

Toxicological Characteristics: Toxic; may be fatal if inhaled, swallowed, or absorbed through the skin.

Classification: Hazardous according to NOHSC criteria; dangerous goods according to ADG regulations

Other Compounds: None

Hazard Identification

Hazard Statements: R1: Highly flammable, R23/24/25: Toxic if inhaled, in contact with skin, or swallowed, R39/23/24/25: Toxic; serious risk of irreversible effects through inhalation, skin contact, and swallowing

Symptoms and Effects:

Skin Contact: Dryness, loss of skin fat, mild irritation and burning, potential absorption and damage to the nervous system

Eye Contact: Pupil dilation, irritation, redness and swelling of the eye, inflammation of mucous membranes, and potential blindness

Swallowing: Oral and throat burning, abdominal pain, nausea, vomiting, and potential blood in urine

Inhalation: Irregular breathing, eye, nose, and throat burning, central nervous system disturbance, and potential blindness

Fire and Explosion

Highly flammable and easily ignited by heat, sparks, or flames. Produces CO and CO₂, and fire and explosion may occur in the presence of sufficient methanol vapor concentration. Caution: has a very low flash point; water spray may be ineffective.

Physical and Chemical Properties

Appearance (at 20 degrees Celsius): Clear liquid

Color: Colorless

Odor: Mild alcohol odor

pH (at 20 degrees Celsius): Not applicable; it is soluble in water

Boiling Point: 64.6 degrees Celsius

Flash Point: 12.2 degrees Celsius (closed container), 15.6 degrees Celsius (open container)

Flammability: Flammable

Self-Ignition Temperature: 470 degrees Celsius

Explosion Limits: 5.5 to 36.5 percent by volume

Oxidizing Properties: None

Vapor Pressure (at 50 degrees Celsius): 535 hPa

Density (at 20 degrees Celsius): 0.792 (relative)

Solubility (at 20 degrees Celsius): Soluble in ethanol, ether, acetone, and chloroform

Viscosity (at 40 degrees Celsius): 0.0006 S.Pa

Melting Point: -97.6 degrees Celsius

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