ISO 2833:1973
ISO 2833:1973 Sodium fluoride for industrial use – Determination of fluorine content – Modified Willard-Winter method
CDN $76.00
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 2482:1973 Sodium chloride for industrial use – Determination of calcium and magnesium contents – EDTA complexometric methods
CDN $76.00 Add to cart -
ISO 2199:1972 Sodium hydrogen carbonate for industrial use – Determination of sodium hydrogen carbonate content – Titrimetric method
CDN $76.00 Add to cart -
ISO 2830:1973 Cryolite, natural and artificial – Determination of aluminium content – Atomic absorption method
CDN $76.00 Add to cart -
ISO 3393:1976 Cryolite, natural and artificial, and aluminium fluoride for industrial use – Determination of moisture content – Gravimetric method
CDN $76.00 Add to cart
