一区二区三区中文字,欧美日韩一级黄色大片,亚洲日本A电影,A片久草,新A片网

Jinan Zhihe Fine Chemical Co.,Ltd.   Manager Li: +86-15165117603 +86-13854654186
Site language








Azelaic acid


Product name: Azelaic acid

State: Flaky solid

CAS NO: 123-99-9

Molecular formula: C9H16O4

Molecular weight: 188.22

EINECS: 204-669-1

Quality Index:

 

Standard

Unit

Note

Appearance

White flaky solid, no mechanical impurities

-

 

Azelaic acid Content

≥96.00

%

 

Total diacid Content

≥99.00

%

 

Melting point

104.0-106.0

 

 

Monoacid Content

0.00-0.8

%

 

Acid value

585.0-595.0

MgKOH/g

 

Light transmittance, 440nm

93-100

%

 

Light transmittance, 550nm

93-100

%

 

Packing: 25kg/barrel
Process flow and difference:
Mix oleic acid and acetic acid, add it to the reactor, pass in ozone, control the reaction temperature, check the reaction progress. When the basic reaction of the raw materials is complete, stop the ozone, distill off the solvent, and use water The material was washed, and Azelaic acid was extracted with hot water to obtain an industrial-grade Azelaic acid product.
Advantages: 1. Compared with potassium permanganate, the reaction can be better controlled with ozone, the reaction is mild, the mechanical impurities are less, and the product color is low.
2. The product with high purity can be obtained by water extraction at one time.
3. Use acetic acid to promote the reaction. Compared with concentrated sulfuric acid, the reaction is milder. The color of the product obtained by the reaction is lower.
Product application:
1. Azelaic acid plasticizer is an excellent cold-resistant plasticizer. It is suitable for artificial leather, film, sheet, wire and cable sheath, etc. For nylon, molding resin, polyamide hot melt, polyester and polyester. Amide fibers, polyester films, adhesives, polyurethane elastomers, raw materials for cable coatings and lubricants, capacitors for electronics, medicine, and the production of plasticizer Azelaic acid dioctyl ester.
2. Azelaic acid octyl, decyl, tridecane and other diester lubricants have good viscosity-temperature characteristics and high viscosity index. Especially branched alcohol diester lubricants have high flash point, low oxidative viscosity, and low temperature performance Well, it has excellent viscosity/temperature characteristics and good addition sensitivity. Mainly used in aviation turbine engine lubricating oil, precision instrument oil, synthetic compressor oil, automobile engine oil, metal processing oil, synthetic grease base oil and plastic, chemical fiber and other fine chemical fields.
3.Synthetic fiber
4. Adding high-purity Azelaic acid or its salts to the electrolytic solution of electrolytic capacitors can significantly increase the service life of electrolytic capacitors. The electrolyte composed of ethylene glycol/phosphoric acid/water can produce aluminum electrolytic capacitors with small current leakage and high spark current.
5. Azelaic acid has applications in perfumes, oils, resists, flocculants, flame retardants and stabilizers, lubricants, and raw materials for polyamide resins.





  Previous product:   None
  Next product: Daily chemical grade Azelaic acid

青青国AV| 免费无码 观看AV中文| 大香蕉网超碰| 日本黄a三级大片| 亚洲A片无码| 亚洲一级特黄| 超碰在线 91| 久久草视| 影音先锋自拍| 色色爱av| 亚洲AV黄色片| 亚洲特级黄色片| 69成人电影| 国产 av 高清| 兔费看黄色片| 91干影院| 一级97视频大片| A一级色色色情网站| 日韩三级片AV| 操一操AV| 爱导航AV在线网站| 在线观看免费A片| 97成年影院| 五月天激情四射| A片网站视频| 特黄AAA毛片| av后入| 国产免费av在线| 69AV国产| 91无码人妻| 亚洲AV五月天| 东京热成人免费视频网址| 特级黄A片一级一片免费| 超碰人人操人人| 欧美一级黄色大片| 美女一级裸毛片电影| 五月天婷婷A片| 五月丁香色av| 一级黄色AA片| www一机片| 久草熱AV|