ISO 2362:1972 PDF
Aluminium fluoride for industrial use — Determination of fluorine content — Modified Willard-Winter method
Название (английский):
ISO 2362:1972
Aluminium fluoride for industrial use — Determination of fluorine content — Modified Willard-Winter method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 5
- Дата публикации:
- 1 декабря 1972 г.
- Издание:
- ISO IS 2362 edition 1 version 1
- ICS:
- 71.060.50
Описание (английский):
The principle of the method consists in fusion of a test portion with sodium carbonate. Separation of fluorine by distillation with sulphuric acid. Titration with thorium nitrate solution using sodium alizarinsulphonate-methylene blue as indicator. Alternatively, the thorium nitrate titration may be made using only sodium alizarinsulphonate; the end-point being spectrophotometrically determined at 525 nm.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 2362:1972