ISO 2268:1972
p
ISO 2268:1972
7088

Abstract

 Preview

The method relies on the facts that both non-ionic adducts and polyethylene glycols are soluble in sodium chloride solution, but one is soluble in ethyl acetate whereas the other is not. Separation of the polyethylene glycols and the adducts is, therefore, possible by the following methods: Dissolution of the sample in ethyl acetate and extraction of polyethylene glycols by sodium chloride solution. Extraction of the polyethylene glycols isolated in the sodium chloride solution with chloroform, removal of the solvent and weighing of the residue. Evaporation of the ethyl acetate solution which contains the adducts and weighing of the residue.


General information 

  •  :  Published
     : 1972-11
  •  : 1
     : 5
  •  : ISO/TC 91 Surface active agents
  •  :
    71.100.40 Surface active agents

Buy this standard

en
Format Language
std 1 38 PDF
std 2 38 Paper
  • CHF38

Life cycle


Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.