This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
Abstract Preview
The hydroxy groups present in a test portion are esterified with phthalic anhydride. The excess phthalic anhydrids is hydrolyzed and the phthalic acid formed is neutralized with standard volumetric sodium hydroxide solution. If the sample contains free acidity or alkalinity a corresponding correction is made. From the corrected hydroxyl number, the apparat relative molecular mass may be calculated by a formula given.
General information
-
Status : PublishedPublication date : 1981-09
-
Edition : 1Number of pages : 3
-
- ICS :
-
Alcohols. Ethers
Buy this standard
| Format | Language | |
|---|---|---|
| Paper |
- CHF38
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.