91蝌蚪视频在线观看,国产农村乱人伦精品视频,亚洲无码精彩视频在线观看,日日摸夜夜漆夜夜添无码专区,亚洲无码熟妇人妻AV在线,国产精品极品美女自在线观看免费,婷婷成人综合激情在线视频播放,美女视频黄频a免费高清不卡,国产精品夜夜嗨视频免费视频,亚洲无码不卡网

<fieldset id="seooo"></fieldset>
<fieldset id="seooo"><menu id="seooo"></menu></fieldset>
  • <strike id="seooo"></strike>
  • <strike id="seooo"></strike>
    • <del id="seooo"><tfoot id="seooo"></tfoot></del>

      Welcome to Shanghai Yixiang Chemical Co., Ltd technology website, 0086-532-66721921

      SERVICE HOTLINE:

      0086-532-66721921

      Shanghai Yixiang Chemical Co., Ltd

      QQ:3572534783

      Tel:0086-532-66721921

      E-mail:market@yx-pvp.com

      Add:Room J3681, No. 500, Xincheng Road,

      Jiading District, Shanghai,China

      N-methylpyrrolidone NMP is widely used

      Release Date:2022-11-01

      On the basis of the carbon peak period, China's chemical industry will carry out round after round of screening. Low carbon environmental protection, low energy consumption and high profit products are in the planning of chemical enterprises, such as new energy, new materials, electronic industry and other products. N-methylpyrrolidone NMP industry is a product with high attention at present. Why does it get so much attention?

      According to the data, N-methylpyrrolidone NMP is a colorless, transparent, oily liquid with slight odor, which can be said to be widely used in chemical industry, coatings, inks, resin plastics, dyes, lithium electronic batteries, pesticides, and electronic industries. The product purity grade is different, and the application field is also different. In the electronic industry, it is used in aramid fiber, PPS, ultrafiltration membrane, OLED panel photoresist etching and other industries. It can also be applied to the front-end solvent of lithium battery, and belongs to the supporting solvent of lithium battery positive electrode binder. In the field of microelectronic industry, it is used in high-end microelectronic industries such as liquid crystal, semiconductor, circuit board, carbon nanotube, etc. In the industrial field, NMP can be used in acetylene concentration, butadiene extraction, electrical insulation materials, high-grade coatings, pesticide additives, inks, pigments, industrial cleaning agents and other industrial fields. In the pharmaceutical industry, NMP pharmaceutical grade has high requirements for safety, and is mainly used in medicine, medicine, veterinary medicine, pharmaceutical intermediates and other industries.

      NMP Functional Properties

      Chemical property: relatively stable in neutral solution. After 8 hours in 4% sodium hydroxide solution, 50%~70% will be hydrolyzed. Hydrolysis will occur gradually in concentrated hydrochloric acid to generate 4-methylaminobutyric acid. Ketals or thiopyrrolidone can be formed due to the reaction of carbonyl group.

      NMP is miscible with water and soluble in most organic solvents such as ether and acetone. It can dissolve most organic and inorganic compounds, polar gases, natural and synthetic polymer compounds.

      In the presence of alkali catalyst, alkylation reaction will take place in the third place when it reacts with olefins. N-methylpyrrolidone is weakly alkaline and can generate hydrochloride. It forms an adduct with heavy metal salts. For example, it is heated with nickel bromide to 150 ℃ to produce NiBr2 (C5H9ON) 3, with a melting point of 105 ℃.

      NMP is a polar solvent with strong selectivity and good stability. It has the advantages of low toxicity, high boiling point, strong solubility, nonflammable, biodegradable, recyclable, safe to use, and suitable for a variety of formulations.

      When operating, everyone should pay attention to that it should be used in an open place or a ventilated place, and try to operate in a downwind place instead of inhaling steam; Avoid contact with eyes, body, skin, clothes, etc., and mainly wear protective equipment during operation; Avoid leakage, spillage, and careless lowering during operation to prevent physical damage. N-methylpyrrolidone NMP is generally stored in a cool, ventilated and sunless environment, in sealed containers, away from heat sources, and away from oxidizing and flammable materials.

      In general, N-methylpyrrolidone NMP is not only an important basic chemical raw material, but also an important raw material in the new energy industry. The used dirty waste methyl pyrrolidone can be recycled by solvent recovery machine and vacuum decompression system. Because of its high boiling point, direct recovery cannot be used. Vacuum decompression can reduce the recovery heating temperature, ensure the recovery quality, and improve the recovery safety factor. NMP is a solvent with strong selectivity and good stability. It has the advantages of high boiling point, strong solubility, nonflammable, biodegradable, recyclable, etc.


      Online Service
      Contact us

      Hot Tel

      0086-532-66721921

      Work Shift

      from Monday to Friday

      QR code
      Service
      美女免费黄网站| 亚洲精品黄网在线观看| 亚洲午夜无码久久久久蜜臀av| 亚州性无码不卡免费视频| 有码中文字幕在线观看| 麻豆1区2产品乱码芒果白狼在线| 在线播放日本国产精品| 日韩av成人一区二区| 国产精久久一区二区三区| 日韩一区不卡中文字幕| 人妻丰满熟妇AV无码区动漫| 精品视频人妻免费在线| av中文字幕网免费观看| 午夜激情福利一区二区| 日韩人妻中文无码一区二区| 高清无码一本到东京热| 国内精品小视频福利网址| 国产免费怡红院视频| 精品国产免费一区二区三区| 国产熟睡乱子伦视频| 中文字幕AV无码一二三区电影| 午夜无码影院| 国产亚洲国产亚洲国产| 欧美高清在线精品一区| 国产免费观看久久av| 亚洲一级毛片在线观播放| 呦系列视频一区二区三区| 国产乱码一区二区精品| 东京一本一道一二三区| 日韩AV手机在线观看蜜芽| 亚洲中文字幕国产精品| 国产 中文 亚洲 日韩 欧美| 亚洲精品欧美重口| 亚洲成人黄色一级大片| 国产视频一区二区国产| a在线观看免费| 亚洲国产成人无码AV在线影院L| 国产精品熟女高潮无套| 性欧美VIDEOFREE高清大喷水| 粗壮挺进邻居人妻无码| 精品国产乱码精品国产|