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What is cyclopentane used for?

What is cyclopentane used for?

Do you know what cyclopentane is? What are the uses of cyclopentane?

This passage is going to talk about the followings of cyclopentane:

(1) Definition of cyclopentane

(2) Formula of naphthenic hydrocarbons

(3) Industrial uses of cyclopentane

(4) The harmful effects of cyclopentane

(5) First aid measures for accidental contact with cyclopentane

 

(1) Definition of cyclopentane

Cyclopentane is a highly flammable alicyclic hydrocarbon with the chemical formula C 5 H 10.

Cyclopentane consists of a ring of five carbon atoms, each of which is bonded to two hydrogen atoms above and below the plane. It comes in the form of a colorless liquid with a gasoline-like smell. Its melting point is -94°C and its boiling point is 49°C. Cyclopentane belongs to the category of cycloalkanes, which is a ring with one or more alkane carbon atoms. It is formed by cracking cyclohexane in the presence of alumina at high temperature and pressure. It was first prepared in 1893 by the German chemist Johannes Wislicenus.

 

(2) Formula of naphthenic hydrocarbons

Cycloalkanes can be formulated by a method called catalytic reforming. For example, 2-methylbutane can be reformed into cyclopentane by using a platinum catalyst. This is well known in automobiles, because branched chain alkanes will burn more easily.

 

(3) Industrial uses of cyclopentane

Cyclopentane is used to make synthetic resins and rubber adhesives. It is also used as a foaming agent and used to make polyurethane insulation foam. This can be found in many household appliances (such as refrigerators and freezers) and replaces CFC-11 And alternatives such as HCFC-141b. Multi-alkylated cyclopentane (MAC) lubricants have low volatility and can be used in some special applications.

Used to replace Freon, which is widely used as a foaming agent for insulation materials in refrigerators and freezers and other rigid PU foams; used as a solvent for solution polymerization such as polyisoprene rubber, a solvent for cellulose ether and a standard substance for chromatographic analysis .

 

(4) The harmful effects of cyclopentane

Inhalation of high concentrations of cyclopentane can cause central nervous system depression, although its acute toxicity is low. Symptoms caused by acute exposure include excitement first, then balance imbalance, stupor, and coma. There are very few deaths from respiratory failure. It has been reported that oral feeding of this product to animals causes severe diarrhea, leading to collapse of the heart, lungs and liver vessels and brain degeneration.

Protective measures: Improve production equipment. Use skin protective ointment or wear gloves to protect the skin.

Medical monitoring: During regular physical examinations, pay attention to possible irritation of the skin and respiratory tract, as well as any complications of the kidney and liver.

Transportation requirements: Cyclopentane is a first-class flammable liquid. The container must be marked with a "flammable liquid" mark during transportation.

The storage and transportation method of cyclopentane: keep the warehouse ventilated, low temperature and dry; store it separately from the oxidant.

 

(5) First aid measures for accidental contact with cyclopentane

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, induce vomiting, and seek medical attention.

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, dry powder, carbon dioxide, sandy soil. Extinguishing with water is ineffective.

 

 

 


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