searchSearch now
Unified national service hotline

top_phone.png+8618661478889

聚乙二醇400

news

Products

Contact us

Qingdao Yinuoxin New Material Co. LTD

Phone:+860532-66569009

Mobile phone:+8618661478889

Fax:+860532-66569009

The url:www.yinuoxin.com

Email:kefu@yinuoxin.com

Address:No. 400, Tieqi Mountain Road, Chengyang District, Qingdao

Yinuo explains the characteristics of POLYETHYLENE glycol 4000

Your current location: home >> News >> The latest news

Yinuo explains the characteristics of POLYETHYLENE glycol 4000

Release date:2018-04-06
Author:Qingdao Yinuo New Material
Click:

    Juyi’erchun 4000the English name:Macrogol 4000-991 his product is a polycondensation mixture of ethylene oxide and water. The molecular formula is HO(CH2CH2O)nH, where N represents the average number of oxyvinyl groups

   This product is white waxy solid thin section or granular powder; It smells a little bad. This product is soluble in water but insoluble in ether or ethanol. Condensation point of this product of solidifying point (appendix Ⅵ D) 50 ~ 54 ℃. Viscosity, 25.0 g, proper in 100 ml volumetric flask and add enough water to dissolve and diluted to scale, shake well, use of capillary inner diameter of 0.8 mm flat's viscosity meter, determination (appendix Ⅵ g first law) in accordance with the law, in 40 ℃ kinematic viscosity of 5.5 ~ 9.0 mm < 2 > / S.

   The average molecular weight of this product was about 12g, accurately weighed, placed in a dry 250mL corkscrew conical flask, added pyridine 25ml, heated to dissolve, cooled, and determined according to the method of polyethylene glycol 400 item, starting from "precisely adding pyridine solution of phthalic anhydride", the average molecular weight should be 3400 ~ 4200. Acidity, solution clarity and color, and burning residue should be checked by polyethylene glycol 400 method.

Peg is used biologically as a inducer to induce cell fusion

聚乙二醇4000

URL of this article:http://en.yinuoxin.com/news/368.html

Related tags:Polyethyleneglycol,Polyethyleneglycol4000,Polyethyleneglycolmanufacturer

Recently Viewed:

  • Service
  • Contact
    +8618661478
  • Message
  • Mobile site
  • consultation
    Welcome to leave us a message
    Please enter the message content here, we will contact you as soon as possible.
    Name
    Name
    phone
    Landline/Mobile Number
    email
    email
    address
    address