2-Butanone is an organic compound with a chemical formula of CH3COCH2CH3 and a molecular weight of 72.11. For colorless transparent liquid, there is a scent similarity. volatile. Can mix with ethanol, ether, benzene, chloroform, and oil. Soluble in 4 parts of water, but when the temperature rises, the solubility is reduced, which can form a co -boiling mixture with water. Low toxic, half of the death (mice, meridian) 3300mg/kg. Flammable, steam can form an explosive mixture with air. High -concentration vapor is anesthesia.

Basic Information

Physical and chemical properties

Physical properties

Following point: -85.9 ℃

Density: 0.806g/cm3

Boiling point: 79.6 ℃

Saturated vapor pressure: 9.49kPa (20 ° C)

Burn heating: 2441.8kj/mol

Critical temperature: 260 ℃

Critical pressure: 4.40MPa

The value of the sip/water allocation coefficient: 0.29

Flash point: -9 ℃ (CC)

Condition temperature: 404 ℃

Explosion upper limit (V/V): 11.4%

Lower limit of explosion (V/V): 1.7%

Appearance and traits: colorless liquid, with acetone smell.

Solubility: soluble in water, ethanol, ether, mixed with oil.

Chemistry properties

Methalisone is prone to various reactions due to the lively hydrogen adjacent to the cymbal group. Heated with hydrochloric acid or sodium hydroxide, which occurred together,and generated 3,4-diexyl-3-hexiene-2-ketone or 3-methyl-3-gallene-5-ketone. When it is irradiated by sunlight for a long time, ethylene, acetic acid, and contraction products are generated. Use linked acetyls when oxidized with nitrate. Acetic acid is generated when oxidized with a strong oxidation agent such as chromic acid. Antone is relatively stable at the heat, and at a higher temperature, the heat fissure is generated to generate hypenne or methylne ketone. When contralating with aliphed or aromatic aldarin, the ketone, ring -shaped compound, ketone, and resin of high molecular weight are generated. For example, with the existence of formaldehyde in the existence of sodium hydroxide, it is first generated to generate 2-gyx-1-butanol-3-ketone, and then dehydrated to form methyl heterolytone.

Resinization occurs during sunlight or ultraviolet light. Tyranane is generated with phenol shrinking 2,2-dual (4-hydroxylphenyl). There is a lower reaction with the alkaline catalyst to generate β-dione. In the existence of acidic catalysts, the effect of an anhydride reaction occurs, and β-dione is generated. To generate cyanol with cyanide reactions. Active ketohrine derivatives with ammonia reaction. Antone's α-hydrogen atoms are easily replaced by halogen to generate various halogen ketones, such as generating 3-chloro-2-butthoone. A 2,4-diitol phenolic pupar is generated with 2,4-binary phenylphenyl.

use

1. It is used as a solvents such as cellulose, acrylic resin, alcoholic acid resin, coatings, ink, etc., adhesives of dyes, lubricating oil dewax, vulcanization promoters, etc.

2. Use reagents for cadmium, copper and mercury, chromatography standard substances and semiconductor optical steply solvents

3. GB 2760-96 regulations are edible spices allowed to be used. It is mainly used to prepare cheese, coffee and banana flavors. It can also be used for extraction solvents.

4. It is mainly used as a solvent, such as the extraction process of lubricating oil and dewaxing, coating industry and multiple resin solvents, vegetable oil extraction and refining process. Mid -boiling ketone solvent. Antone is also the intermediate preparation of medicine, dyes, detergents, spices, antioxidants, and certain catalysts, synthetic antipotaliflower methyl achone, polymerized catalyst methylsonone peroxide, resistant A The basal pentiol, etc., is used as a light -engraved agent in the electronics industry.

5. It is a raw material for preparing mate -killing mate.

Precautions

Health Hazards

Invasion pathway: inhalation, eating, and absorbing through the skin.

Health hazard: It is irritating to the eye, nose, throat, and mucosa. Long -term contact can cause dermatitis. This product is often mixed with 2-hexone, which can be added

Strong 2-peripheral neuropathy caused by hexone, but no needle ketone is found to have peripheral neuropathy alone.

Burning risk: this quality is flammable and irritating.

Emergency disposal method

Emergency handling of leakage

Quickly evacuate personnel in the leakage of pollution to the safe area and isolate, and strictly restrict the entry and exit. Cut off the source of the fire. It is recommended that emergency treatment personnel wear self -sufficient positive respirators and fire protection clothing. Don't directly contact the leak. Cut off the leak source as much as possible to prevent restricted spaces such as the sewer and flood ditch. Smaller leakage: Use sand or other non -burning materials to absorb or absorb. You can also rinse with a large amount of water. Dilute the fluid and put it in the wastewater system. A large amount of leakage: build a embankment or dig pits for container; cover with foam to reduce the vapor disaster. Use the explosion -proof pump to the slot car or a special collector. Recycling or transportation to the disposal of waste treatment places.

Waste disposal method: use incineration method.

Protective measures

Respiratory protection: When the concentration in the air exceeds the standard, wearing a self -suction filter anti -virus mask (half mask) should be worn.

Eye protection: When necessary, wear chemical safety protection glasses.

Physical protection: wear anti -static work clothes.

Hand protection: Wear latex gloves.

Others: Smoking is strictly prohibited at work. Pay attention to personal cleaning. Avoid long -term contact.

first-aid

Skin contact: Take off the contaminated clothes and rinse the skin with soapy water and water.

Eye contact: Lift the eyelids and rinse with flowing water or physiological saline. Medical.

Inhale: Quickly get out of the scene to fresh air. Keep the respiratory tract open. If breathing is difficult, give oxygen. If breathing stops, perform artificial breathing immediately. Medical.

Eater: Drink sufficient warm water, vomiting, and use water or 1%sodium sulfate solution to the gastric. Medical.

Fire-fighting measures

Harm combustion products: carbon monoxide, carbon dioxide.

Fire extinguishing method: The container is moved from the fire to the open area as much as possible. The water spray was kept cooling until the fire was ended. If the container in the fire is changed or sounds from the safety pressure device, it must be evacuated immediately.

Fire extinguishing agent: anti -soluble foam, dry powder, carbon dioxide, sand.

Operation disposal and storage

Operation precautions: closed operation, comprehensive ventilation. The operator must strictly abide by the operating procedures after special training. It is recommended that operators wear self -suction filter anti -virus masks (half masks), wearing chemical safety protective glasses, wearing anti -static work clothes, and rubber oil -resistant gloves. Stay away from fire and thermal sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent the vapor leak into the air in the workplace. Avoid contact with oxidant, reducing agent, and alkali. The flow rate should be controlled during the filling, and there are grounded devices to prevent static accumulation. Due to lightly and lightly remove the packaging and container when moving. Equipped with the corresponding variety and quantity of fire equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.

Storage precautions: stored in a cool, ventilated warehouse. Stay away from fire and heat. Kuken should not exceed 30 ° C. Keep the container seal. Store separately from the oxidant, reducing agent, and alkali, avoid mixing. Explosion -proof lighting and ventilation facilities. It is forbidden to use machinery and tools that are prone to sparks. The storage area should have leakage emergency treatment equipment and suitable containment materials.

Precautions for transportation: During transportation, transport vehicles should be equipped with corresponding varieties and quantities of fire equipment and emergency treatment equipment. It is best to transport sooner or later in summer. The groove (tank) car used during transportation should have a ground chain, and a hole partition can be set in the groove to reduce the vibration to generate static electricity. It is strictly forbidden to mix with oxidant, reducing agent, alkali, edible chemicals and other mixing. During transportation, sun exposure and rain should be exposed to prevent high temperature. Stay away from fire, heat source, and high temperature zone when staying in the middle. The vehicle exhaust pipe that is transported by the item must be equipped with a fire resistance device, which is forbidden to load and unload machinery equipment and tools that are prone to sparks. During road transportation, you should drive in accordance with the prescribed routes. Do not stay in residential areas and densely populated areas. Railway is prohibited during transportation. It is strictly forbidden to use wooden boats and cement vessels to transport them.

Precautions for packaging: small opening steel barrels; ordinary wooden boxes outside the ampoule bottle; thread glass bottle, iron cover press glass bottle, plastic bottle or metal barrel (can) ordinary wooden box.