Table of Physical and Chemical Properties and Hazardous Characteristics of n-Hexane
Chemical name Chinese Name: 己烷、正己烷 English Name: n-Hexane, Hexanol Hydrate Hazardous Code: 31005 UN Number: 1208 Molecular formula: C6H14 Molecular weight: 86.17 CAS number: 110-54-3 Hazard category: Class 3.1 Low flash point flammable liquid. |
Hazard Overview Health hazards: This product has anesthetic and irritant effects. Long term exposure can cause peripheral neuropathy. Acute poisoning: Inhaling high concentrations of this product can cause headaches, dizziness, nausea, ataxia, and in severe cases, loss of consciousness or even death. Irritating to the eyes and upper respiratory tract. Chronic poisoning: long-term exposure may cause headaches, dizziness, fatigue, and decreased appetite; Afterwards, the distal limbs gradually developed sensory abnormalities, numbness, decreased sensation of touch, pain, vibration, and position, especially in the lower limbs, with less involvement in the upper limbs. Further develop into lower limb weakness, muscle pain, muscle atrophy, and movement disorders. Neuro electromyography examination showed a decrease in the conduction velocity of sensory and motor nerves. Explosive hazard: This product is extremely flammable and irritating. |
Emergency measures Skin contact: Remove contaminated clothing and thoroughly rinse the skin with soap and water. Eye contact: Lift the eyelids and rinse with flowing water or saline solution. Seek medical attention. Inhalation: Quickly leave the scene and move to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, administer oxygen. If breathing stops, immediately perform artificial respiration. Seek medical attention. Ingestion: Drink plenty of warm water and induce vomiting. Seek medical attention. |
Fire protection measures Hazardous characteristics: Extremely flammable, its vapor can form explosive mixtures with air, and it is highly flammable and explosive when exposed to open flames and high heat. Contact with oxidants can cause strong reactions and even lead to combustion. In a fire scene, heated containers pose a risk of explosion. Its vapor is heavier than air and can spread to a considerable distance at lower levels. It will ignite and reignite when exposed to a source of fire. Harmful combustion products: carbon monoxide, carbon dioxide Fire extinguishing method: Spray water to cool the container, and if possible, move the container from the fire scene to an open area. If the container in the fire has changed color or produced sound from the safety relief device, it must be evacuated immediately. Extinguishing agent: foam, carbon dioxide, dry powder, sand. Using water to extinguish the fire is ineffective. |
Emergency response to leakage Quickly evacuate personnel from the contaminated area to a safe zone, isolate them, and strictly restrict their entry and exit. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static work clothes. Cut off the leakage source as much as possible. Prevent the flow into restricted spaces such as sewers and drainage ditches. Minor leakage: Absorb or absorb with sand or other non combustible materials. It can also be brushed with lotion made of incombustible dispersant, and the washing solution is diluted and discharged into the wastewater system. Massive leakage: Construct embankments or dig pits to contain it. Cover with foam to reduce steam disaster. Transfer to a tanker or dedicated collector using an explosion-proof pump, and recycle or transport to a waste disposal site for disposal. |
Handling and Storage Precautions for operation: Closed operation, comprehensive ventilation. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear self-priming filter type gas masks (half masks), chemical safety goggles, anti-static work clothes, and rubber oil resistant gloves. Keep away from sources of fire and heat, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent steam leakage into the workplace air. Avoid contact with oxidants. During filling, the flow rate should be controlled and there should be a grounding device to prevent static electricity accumulation. Handle with care during transportation to prevent damage to packaging and containers. Equip with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. Empty containers may contain residual harmful substances. Storage precautions: Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 30 ℃. Keep the container sealed. It should be stored separately from oxidants and avoid mixing storage. Adopt explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and suitable containment materials. |
Contact control and individual protection Exposure limit: China: no standard established, former Soviet Union: 300mg/m3 Engineering control: The production process is sealed and fully ventilated. Provide safety shower and eye wash equipment. Respiratory protection: When the concentration in the air exceeds the standard, wear a self-priming filter type gas mask (half face mask). Eye protection: If necessary, wear chemical safety goggles. Body protection: Wear anti-static work clothes. Hand protection: Wear rubber oil resistant gloves. Other protections: Smoking is strictly prohibited at the work site. Avoid long-term repeated exposure. |
Physical and chemical properties Main Ingredients: Pure Appearance and Characteristics: Colorless liquid with a faint special odor. Solubility: Insoluble in water, soluble in most organic solvents such as ethanol and ether. Melting point (℃): -95.6 Boiling point (℃): 68.7 Flash point (℃): -25.5 Saturated vapor pressure (kPa): 13.33 (15.8 ℃) Combustion heat (kJ/mol): 4159.1 Ignition temperature (℃): 244 Critical temperature (℃): 234.8 Critical pressure (MPa): 3.09 Relative density (water=1): 0.66 Relative vapor density (air=1): 2.97 Explosion limit% (V/V): 1.2-6.9 Main applications: Used in organic synthesis, as a solvent, chemical reagent, coating diluent, and medium for polymerization reactions. |
Stability and reactivity prohibited compounds: strong oxidants |
Toxicological data LD50: 28710 mg/kg (oral administration in rats) LC50: No data available |
Transportation information Packaging method: Small opening steel drum; Ordinary wooden box outside the ampoule bottle; Screw mouth glass bottles, iron cap pressed mouth glass bottles, plastic bottles, or ordinary wooden boxes outside metal drums (cans). Transportation precautions: During transportation, the transport vehicle should be equipped with corresponding types and quantities of fire-fighting equipment and emergency response equipment for leaks. It is best to transport in the morning and evening during summer. The tank truck used for transportation should have a grounding chain, and a perforated partition can be installed inside the tank to reduce static electricity generated by vibration. It is strictly prohibited to mix and transport with oxidants, edible chemicals, etc. During transportation, it should be protected from direct sunlight, rain, and high temperatures. When stopping midway, one should stay away from sources of fire, heat, and high temperature areas. The exhaust pipe of the vehicle carrying the item must be equipped with a flame retardant device, and the use of mechanical equipment and tools that are prone to generating sparks for loading and unloading is prohibited. When transporting by road, follow the prescribed route and do not stay in residential or densely populated areas. It is prohibited to slip during railway transportation. It is strictly prohibited to use wooden boats or cement boats for bulk transportation. |