Part 1: Chemical Name

Chemical Chinese name: n-hexane

Chemical English name: hexyl hydrate

Main applications: Used in organic synthesis, as a solvent, chemical reagent, coating diluent, and medium for polymerization reactions.

Part 2: Overview of Hazards

Hazard category: Class 3.1 low flash point flammable liquid

Invasion routes: inhalation, ingestion, transdermal absorption

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.   

Environmental hazards: Harmful to the environment.

Explosive hazard: This product is extremely flammable and irritating.

Part Three: Composition/Composition Information

Main ingredients: Hexane content 99.0%

CAS number: 110-54-3

Relative molecular weight: 86.17

Molecular formula: C6H14

Part Four: First Aid Measures

Skin contact: Remove contaminated clothing and rinse with plenty of running 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.

Part 5: 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.

Part 6: Emergency Response to Leakage

Emergency response: 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.

Part 7: 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.

Part 8: Contact Control/Personal Protection

Occupational exposure limit

China MAC (mg/m3): No standard established

Former Soviet Union MAC (mg/m3): 300

TLVTN：OSHA 500ppm,1760mg/m3;   ACGIH 50ppm,176mg/m3

TLVWN: No standard established

Monitoring method: Gas chromatography

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 filtered 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.  

Part 9: Physical and Chemical Characteristics

Main ingredients: Pure product

Appearance and characteristics: Colorless and transparent liquid, with aromatic odor, highly volatile.

Melting point (℃): -95.6

Boiling point (℃): 68.7

Relative density (water=1): 0.66

Relative vapor density (air=1): 2.97

Saturated vapor pressure (kPa): 13.33 (15.8 ℃)

Heat of combustion (kJ/mol): 4159.1

Critical temperature (℃): 234.8

Critical pressure (MPa): 3.0

Logarithmic value of octanol/water partition coefficient: no data available

Flash point (℃): -25.5

Ignition temperature (℃): 244

Explosion upper limit% (V/V): 6.9

Lower explosive limit% (V/V): 1.2

Solubility: Insoluble in water, soluble in most organic solvents such as ethanol and ether.

Main applications: Used in organic synthesis, as a solvent, chemical reagent, coating diluent, and medium for polymerization reactions.

Other physical and chemical properties: No information available

Part 10: Stability and Reactivity

Stability: Stable

Prohibited substances: strong oxidants, oxygen, chlorine, and perchloric acid.

Conditions to avoid contact: heat, air.

Aggregation hazard: non aggregation

Decomposition products: carbon monoxide, carbon dioxide.

Part 11: Toxicological Data

Acute toxicity: LD50: 28710 mg/kg (oral administration in rats) LC50: No data available

Subacute and chronic toxicity: no data available

Stimulus: No data available

Allergenicity: No data available

Mutability: No data available

Teratoxicity: No data available

Carcinogenicity: No data available

Part 12: Ecological Data

Ecotoxicity: No data available

Biodegradability: No data available

Non biodegradable: No data available

Bioaccumulation or Bioaccumulation: No data available

Other harmful effects: This substance may pose a threat to the environment, and special attention should be paid to its pollution of surface water, soil, atmosphere, and drinking water.

Part 13: Disposal of Waste

Waste nature: hazardous waste

Disposal method: Use incineration method for disposal.

Disposal precautions: Before disposal, relevant national and local regulations should be consulted.

Part 14: Transportation Information

Dangerous Goods Number: 31005

UN number: 1208

Packaging label: Flammable liquid

Packaging category: Class II packaging

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.  

Part 15: Regulatory Information

Regulatory information: Regulations on the Safety Management of Hazardous Chemicals (State Council Decree No. 344, implemented on March 15, 2002), Implementation Rules for the Regulations on the Safety Management of Hazardous Chemicals (Hua Lao Fa [1992] No. 677), Regulations on the Safe Use of Chemicals in the Workplace ([1996] Ministry of Labor Fa No. 423) and other regulations have made corresponding provisions for the safe use, production, storage, transportation, loading and unloading of hazardous chemicals; The classification and labeling of commonly used hazardous chemicals (GB 13690-92) classify this substance as Class 3.1 low flash point flammable liquid.  

Part 16: Other Information

References:

1. Zhou Guotai, Complete Book of Chemical Hazardous Materials Safety Technology, Chemical Industry Press, 1997

2. Compiled by the Toxic Chemicals Management Office of the National Environmental Protection Administration and the Beijing Institute of Chemical Technology, Environmental Data Manual for Chemical Toxicity Regulations, China Environmental Science Press, 1992

Revision Description: Second Edition

Other information:

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