1. <td id="asqqv"><dl id="asqqv"><big id="asqqv"></big></dl></td>
    2. <th id="asqqv"><em id="asqqv"></em></th>

      <dd id="asqqv"></dd>
    3. <th id="asqqv"></th>





      Tetrahydrofuran

      Physical and chemical properties

      Color and odor status: colorless, viscous liquid with the smell similar to ether

      Toxicity: low toxicity

      Flammability: extremely flammable

      Density: 0.887g/cm3

      Volatility: volatile

      Boiling point: 66 ℃

      Stability: stable

      Melting point: -108.5℃

      Acidity: weak acid

      Spontaneous ignition point: 321

      Stickiness: small

      Flash point: -14℃

       

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

      Code

      CAS: 109-99-9

      HS: 2932110000

      EINECS: 203-726-8

      Uses

      Used as a solvent, organic synthesis, medicine, and has a wide range of Uses. Used as a chromatographic analysis reagent and an intermediate for the synthetic pesticide phenbutyltin. It can be directly used to make synthetic fibers, synthetic resins, and synthetic rubbers. It is also a solvent for many polymer materials, precision tapes and electroplating industries. It is also used to make adiponitrile, adipic acid, hexamethylene diamine, succinic acid, butanediol, etc. Tetrahydrofuran is an important organic synthesis raw material and a solvent with excellent performance. It is especially suitable for dissolving PVC and butyl aniline. It is widely used as surface coatings, solvent for anticorrosive coatings, printing inks, tape and film coatings, and used as reaction solvents.

      Hazard category

      3.1 Class flammable chemicals

      Fire-fighting measures

      Hazardous characteristics: It can react with acids. Reacts violently with potassium hydroxide and sodium hydroxide. Its vapor is heavier than air and can spread to a considerable distance in a lower place, and will ignite when it encounters a fire source.

      Extinguishing method: use foam, carbon dioxide, dry powder, sand to extinguish the fire. Fire with water is ineffective. Spray water to cool the container. 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.

      Emergency treatment

      Skin contact: Take off contaminated clothing, rinse the skin thoroughly with soap and water

      Eye contact: Lift the eyelid, rinse with running water or normal saline, and seek medical attention

      Inhalation: quickly leave the scene to a place with fresh air. Keep the airway open. If breathing is difficult, give oxygen and seek medical attention

      Ingestion: Drink enough warm water, induce vomiting, seek medical attention

      Packaging, storage, transportation

      Packed in galvanized iron drum, 180kg/drum, stored in a cool, ventilated warehouse, away from fire and heat sources. The storage temperature should not exceed 30 ℃. The packaging must be sealed and not in contact with air. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that easily generate sparks.

       




        Previous product: Dipropylene glycol (DPG)
        Next product: Methylal

      亚洲精品无码一级,99久色图精品国产,国产免费观看精品,亚洲av中文无码字幕色本 在线观看国产一区 中文字幕丝袜无码一区二区
      1. <td id="asqqv"><dl id="asqqv"><big id="asqqv"></big></dl></td>
      2. <th id="asqqv"><em id="asqqv"></em></th>

        <dd id="asqqv"></dd>
      3. <th id="asqqv"></th>