Product DescriptionMETHYL ALCOHOL 1. Product Identification

Synonyms: Wood alcohol; methanol; carbinol CAS No.: 67-56-1 Molecular Weight: 32.04 Chemical Formula: CH3OH

2 Hazards Identification

Emergency Overview -------------------------- POISON! DANGER! VAPOR HARMFUL. MAY BE FATAL OR CAUSE BLINDNESS IF SWALLOWED. HARMFUL IF INHALED OR ABSORBED THROUGH SKIN. CANNOT BE MADE NONPOISONOUS. FLAMMABLE LIQUID AND VAPOR. CAUSES IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT. AFFECTS CENTRAL NERVOUS SYSTEM AND LIVER. ----------------------------------------------------------------------------------------------------------- Health Rating: 3 - Severe (Poison) Flammability Rating: 3 - Severe (Flammable) Reactivity Rating: 1 - Slight Contact Rating: 3 - Severe (Life) Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT HOOD; PROPER GLOVES; CLASS B EXTINGUISHER Storage Color Code: Red (Flammable) ----------------------------------------------------------------------------------------------------------- Potential Health Effects ---------------------------------- Inhalation: A slight irritant to the mucous membranes. Toxic effects exerted upon nervous system, particularly the optic nerve. Once absorbed into the body, it is very slowly eliminated. Symptoms of overexposure may include headache, drowsiness, nausea, vomiting, blurred vision, blindness, coma, and death. A person may get better but then worse again up to 30 hours later. Ingestion: Toxic. Symptoms parallel inhalation. Can intoxicate and cause blindness. Usual fatal dose: 100-125 milliliters. Skin Contact: Methyl alcohol is a defatting agent and may cause skin to become dry and cracked. Skin absorption can occur; symptoms may parallel inhalation exposure. Eye Contact: Irritant. Continued exposure may cause eye lesions. Chronic Exposure: Marked impairment of vision has been reported. Repeated or prolonged exposure may cause skin irritation. Aggravation of Pre-existing Conditions: Persons with pre-existing skin disorders or eye problems or impaired liver or kidney function may be more susceptible to the effects of the substance.

3 Physical and Chemical Properties

Appearance:Clear, colorless liquid. Odor: Characteristic odor. Solubility: Miscible in water. Specific Gravity: 0.8 pH: No information found. % Volatiles by volume @ 21C (70F): 100 Boiling Point: 64.5C (147F) Melting Point: -98C (-144F) Vapor Density (Air=1): 1.1 Vapor Pressure (mm Hg): 97 @ 20C (68F) Evaporation Rate (BuAc=1): 5.9

Name	Methyl alcohol
Molecular formula	CH3OH
Alias name	Wood spirit, methyl, wood alcohol
Application	Mainly used for producing formaldehyde, essence, coloring matter, medicament, powder and antifreeze etc.
Character	Colorless transparent volatile liquid. Relative density (20 °C/4°C)0.7914.Freezing point: -97.49°C.Boiling point: 64.5°C.Flash point (hatch): 16°CBurning point: 470°C. Refractive index: 1. 3285.Surface tension: 22.55×10-3N/m. Vapor tension (20 °C): 12.265kPa. Relative vapor density: 1.11. Dynamic viscosity (20 °C): 0.5945mPa•s. Solubility parameter: δ=14.8. It can be mixed with organic solvent such as water, grain alcohol, aether, acetone, benzene, chloroform etc. Methyl alcohol has light causticity to mental especially brassiness. Combustible, with nattier blue blaze. Its steam could be mixed with air, to form explosion mixtures with the explosion limit of 6.0%-36.5%(vol). Pure methyl alcohol has little taste of grain alcohol, and rude methyl alcohol has bad smell. Poisonous, capable of encroaching on cell tissues in human body especially optic nerver omentum, even causing ablepsia. Drinking 4-10g pure methyl alcohol will cause severe toxicosis, drinking 7-8g will cause ablepsia, and drinking 30-100g will cause death. The highest methyl alcohol consistence in air is 5mg/m3.
Production methods	At the earliest, methyl alcohol was got by wood carbonization.Currently, with mixed air (CO+H2) as raw material, it can be synthetized with certain temperature, pressure and catalyzer. According to different catalyzer, synthetic method is divided into high, middle and low pressures.

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