亚洲尤码不卡av麻豆,日韩精品人妻系列无码专区免费,男女啪动最猛动态图,欧美成人精品第一区

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
亚洲中文字幕无码不卡电影| 亚洲综合精品伊人久久| 久久精品国产亚洲av麻豆| 亚洲av无码av制服丝袜在线| 欧美变态口味重另类在线视频| 亚洲自偷自拍熟女另类| 最新国产成人ab网站| 亚洲熟妇无码八av在线播放| 综合无码一区二区三区| 色爱av综合网站| 亚洲中文字幕无码爆乳av| 男人的好看免费观看在线视频| 日出水了特别黄的视频| 99久久精品免费观看国产| 亚洲成人色区| 国内精品久久久久久久影视麻豆| 国产成人精品一区二区三区视频 | 男女爱爱好爽视频免费看| 国产大陆亚洲精品国产| 亚洲熟妇色xxxxx欧美老妇y| 公和我做好爽添厨房中文字幕 | 精品久久久久久成人av| 鲁丝片一区二区三区免费| 天天躁夜夜躁av天天爽| 无码国模国产在线观看| 成人免费视频一区二区三区| 麻豆婷婷狠狠色18禁久久| 97精品伊人久久大香线蕉| 欲求不満の人妻松下纱荣子| 丰满人妻被中出中文字幕| 久久av无码专区亚洲av桃花岛| 妺妺窝人体色www看人体| 亚洲人成人无码www| 四虎影视成人永久免费观看视频| 国产手机在线αⅴ片无码观看| 99久久精品日本一区二区免费| 日产精品久久久一区二区| 成人无码a级毛片免费| 人妻丰满熟妇av无码区乱| 成人免费直播| 日韩精品无码综合福利网|