Organic Material
Chemical name：methyl alcohol
Ingredient / Composition Information：Hazardous substance content CAS No.Organic Material 67-56-1
Risk Overview
Explosion hazard: This product is flammable and irritating.
first-aid
Fire-fighting measures
Hazardous combustion products: carbon monoxide, carbon dioxide.
Spill emergency treatment
Emergency treatment: Quickly evacuate personnel from the leaked contaminated area to a safe area and isolate them to strictly restrict access Cut off the fire. It is recommended that emergency handlers wear self-contained positive-pressure respirators and antistatic work clothes. Do not touch the spill directly. Cut off the source of the leak if possible. Prevent from flowing into restricted spaces such as sewers and flood drains. Small leaks: Adsorb or absorb with sand or other non-combustible materials. It can also be rinsed with a large amount of water and diluted into the waste water system. Large spills: build dikes or dig pits for containment. Cover with foam to reduce steam disaster. Transfer to tanker or special collector with explosion-proof pump, recycle or transport to waste disposal place
Handling and storage
Precautions for operation: Closed operation and enhanced ventilation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that operators wear filter-type gas masks (half-masks), chemical safety protective glasses, antistatic work clothes, and rubber gloves. Away from fire and heat sources, smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapors from leaking into the workplace air. Avoid contact with oxidants, acids and alkali metals. When filling, the flow rate should be controlled, and there should be a grounding device to prevent static electricity accumulation. Equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. Empty containers may remain harmful.
Storage Precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 30 ℃. Keep container tightly closed. It should be stored separately from oxidants, acids, alkali metals, etc. Avoid mixed storage. Use explosion-proof lighting and ventilation facilities. Prohibit the use of spark-prone machinery and equipment. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.
| CHINA MAC(mg/m3)： |
50 |
| FSU MAC(mg/m3)： | 5 |
| TLVTN： | OSHA 200ppm,262mg/m3; ACGIH 200ppm,262mg/m3[皮] |
| TLVWN： | ACGIH 250ppm,328mg/m3[皮] |
| Monitoring method: | Gas chromatography; chromic acid spectrophotometry |
| engineering control: | The production process is sealed and ventilation is enhanced. Provide safety shower and eyewash equipment. |
| Respiratory protection: | A filter-type respirator (half-mask) should be worn when possible exposure to its vapor. It is recommended to wear an air respirator for emergency rescue or evacuation. |
| Eye protection: | Wear chemical safety protective glasses. |
| Body protection: | Wear antistatic work clothes. |
| Hand protection: | Wear rubber gloves. |
| Other protection: | Smoking, eating and drinking are prohibited at the work site. After work, take a shower. Conduct pre-employment and regular physical examinations |
| properties： | Colorless clear liquid with pungent odor. | ||
| Melting point(℃)： | -97.8 | Relative density (water = 1)： | 0.79 |
| Boiling point(℃)： | 64.8 | Relative vapor density (air = 1)： | 32.04 |
| Molecular formula: | CH4O | Molecular weight ： | |
| The main ingredients: | Pure | ||
| Saturated vapor pressure (kPa)： | 13.33(21.2℃) | Heat of combustion(kJ/mol)： | 727.0 |
| Critical temperature(℃)： | 240 | Critical pressure(MPa)： | 7.95 |
| Flash point(℃)： | 11 | Upper explosion limit%(V/V)： | 44.0 |
| Ignition temperature(℃)： | 385 | Lower explosion limit%(V/V)： | 5.5 |
| Solubility: | Soluble in water, miscible in most organic solvents such as alcohol and ether. | ||
| The main purpose: | Mainly used in the production of formaldehyde, flavor, dye, medicine, gunpowder, antifreeze and so on. | ||
| Incompatibility: | Acids, anhydrides, strong oxidants, alkali metals. | ||
Stability and reactivity
Toxicological information
Acute toxicity:
LD50：5628 mg/kg(Rat oral)；15800 mg/kg(Rabbit percutaneous) LC50：83776mg/m3，4小时(Rat inhalation)
Ecological information
Other harmful effects: The substance may be harmful to the environment. Special attention should be paid to water bodies.
