ISO 2367:1972
ISO 2367:1972 Cryolite (natural and artificial) – Determination of aluminium content – 8- Hydroxyquinoline gravimetric method
CDN $82.00
Description
The method can be applied provided the Fe203 content does not exceed 0,15 . It can also be applied to products with molar ratio of NaF to AlF3 between approximately 3 and 1,7. The principle consists in dissolution of a test portion by acid fusion using potassium pyrosulphate and recovery by hydrochloric acid. Separation of the mixture by precipitation of aluminium, with ammonium benzoate , in an acetic reducing medium. Dissolution of the precipitate and reprecipitation as aluminium tri(quinolin-8-oxide) in an acetic buffer medium. Filtration, washing, drying of the precipitate at a temperature of 130 °C and weighing.
Edition
1
Published Date
1972-12-01
Status
PUBLISHED
Pages
3
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 method can be applied provided the Fe203 content does not exceed 0,15 . It can also be applied to products with molar ratio of NaF to AlF3 between approximately 3 and 1,7. The principle consists in dissolution of a test portion by acid fusion using potassium pyrosulphate and recovery by hydrochloric acid. Separation of the mixture by precipitation of aluminium, with ammonium benzoate , in an acetic reducing medium. Dissolution of the precipitate and reprecipitation as aluminium tri(quinolin-8-oxide) in an acetic buffer medium. Filtration, washing, drying of the precipitate at a temperature of 130 °C and weighing.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 2831:1973 Sodium fluoride for industrial use – Determination of water-insoluble matter
CDN $82.00 Add to cart -
ISO 2463:1973 Sodium chlorate for industrial use – Determination of chloride content – Mercurimetric method
CDN $82.00 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 -
ISO 2993:1974 Ammonium sulphate for industrial use – Determination of free acidity – Titrimetric method
CDN $82.00 Add to cart
