ISO 2833:1973
ISO 2833:1973 Sodium fluoride for industrial use – Determination of fluorine content – Modified Willard-Winter method
CDN $86.00
Description
The principle consists in separation of the fluorine from a test portion by distillation with sulphuric acid or perchloric acid. Titration with thorium nitrate solution using sodium alizarinsuphonate and methylene blue as indicators. Alternatively the thorium nitrate titration may be carried out using sodium alizarinsuphonate alone as indicator, the end-point being determined spectrophotometrically under carefully defined conditions. The absorbance at a wavelength of 525 nm shall reach the arbitrary value of 0.6. Has also been approved by the IUPAC.
Edition
1
Published Date
1973-12-01
Status
PUBLISHED
Pages
5
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
The principle consists in separation of the fluorine from a test portion by distillation with sulphuric acid or perchloric acid. Titration with thorium nitrate solution using sodium alizarinsuphonate and methylene blue as indicators. Alternatively the thorium nitrate titration may be carried out using sodium alizarinsuphonate alone as indicator, the end-point being determined spectrophotometrically under carefully defined conditions. The absorbance at a wavelength of 525 nm shall reach the arbitrary value of 0.6. Has also been approved by the IUPAC.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 2197:1972 Sodium hydrogen carbonate for industrial use – List of methods of test and preparation of the test sample
CDN $82.00 Add to cart -
ISO 3393:1976 Cryolite, natural and artificial, and aluminium fluoride for industrial use – Determination of moisture content – Gravimetric method
CDN $86.00 Add to cart -
ISO 2832:1973 Sodium fluoride for industrial use – Determination of moisture content
CDN $86.00 Add to cart -
ISO 3332:1975 Ammonium sulphate for industrial use – Determination of ammoniacal nitrogen content – Titrimetric method after distillation
CDN $82.00 Add to cart
