Cyclohexane, also known as hexahydrobenzene, is a colorless liquid with a pungent odor. Insoluble in water, soluble in most organic solvents. Very easy to burn. It is generally used as a general solvent, chromatographic analysis standard substance and used in organic synthesis. It can be used in resins, coatings, fats, paraffin oils, and can also be used to prepare organic substances such as cyclohexanol and cyclohexanone.
Appearance and properties: colorless liquid with pungent odor.
Solubility: insoluble in water, soluble in most organic solvents such as ethanol, ether, benzene, acetone, etc.
Status: It is a colorless liquid with gasoline odor, insoluble in water, and compatible with ethanol, ether, acetone, benzene Other organic solvents are miscible, and the solubility in methanol is that 100 parts of methanol can dissolve 57 parts of cyclohexane (25°C).
Use and purpose
1. The product is used as a solvent for rubber, paint and varnish, as a diluent for adhesives, and as a grease extractant. Due to the low toxicity of this product, it is often used instead of benzene for degreasing, degreasing and paint removal. This product is mainly used in the manufacture of nylon monomers adipic acid, hexamethylene diamine and caprolactam, and also used as a raw material for the manufacture of cyclohexanol and cyclohexanone;
2. Used as analytical reagent, such as solvent, chromatographic analysis standard substance. Also used in organic synthesis;
3. Complexometric titration of copper, iron, silicon, aluminum, calcium, magnesium, etc. Chromatographic analysis standard;
4. Used as photoresist solvent;
5. Used for the extraction of essential oils;
6. Cyclohexane is a cleaning and degreasing agent. MOS grade is mainly used for discrete devices, medium and large-scale integrated circuits, and BV-Ⅲ grade is mainly used for very large-scale integrated circuits.
Notes
Overview of dangers
Health hazards: mild irritation to the eyes and upper respiratory tract. Continued inhalation can cause dizziness, nausea, drowsiness and other symptoms of anesthesia. Liquid contaminating the skin can cause itching.
Explosion hazard: This product is extremely flammable .
First aid measures
Skin contact: Take off contaminated clothing and wash skin thoroughly with soap and water.
Eye contact: Lift the eyelid and rinse with running water or normal saline. Seek medical attention.
Inhalation: quickly leave the scene to a place with fresh air. Keep the airway unobstructed. If breathing is difficult, give oxygen. If breathing stops, give artificial respiration immediately. Seek medical attention.
Ingestion: Drink enough warm water to induce vomiting. Seek medical attention.
Fire-fighting measures
Hazardous combustion products: carbon monoxide, carbon dioxide.
Fire fighting method: spray water to cool the container, and if possible, move the container from the fire scene to an open place. If the container in the fire scene has changed color or produces sound from the safety relief device, it must be evacuated immediately.
Extinguishing agent: foam, carbon dioxide, dry powder, sand. Extinguishing with water is ineffective.
Leakage emergency response
Emergency treatment: Quickly evacuate personnel from the contaminated area to a safe area, isolate them, and strictly restrict access. Cut off the fire source. It is recommended that emergency personnel wear self-contained positive pressure respirators and anti-static overalls. Cut off the source of leakage as much as possible. Prevent entry into restricted spaces such as sewers and flood drains.
Small leakage: Use activated carbon or other inert materials to absorb. It can also be scrubbed with an emulsion made of a non-flammable dispersant, and the lotion is diluted and put into the waste water system.
A large number of leaks: build a dike or dig a pit for storage. Cover with foam to reduce steam hazards. Use explosion-proof pump to transfer to tank truck or special collector, recycle or transport to waste disposal site for disposal.
Operational disposal and storage
Operation precautions: airtight operation, full ventilation. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter respirators (half masks), safety glasses, anti-static overalls, and rubber oil-resistant gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent the vapor from leaking into the air in the workplace. Avoid contact with oxidants. During filling, the flow rate should be controlled, and there should be a grounding device to prevent static electricity from accumulating. When handling, load and unload with care to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.
Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 30°C. Keep the container tightly closed. should be kept away from oxidizer, do not store together. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable storage materials.
