ISO 2760:1975 PDF
Crude sodium borates for industrial use — Determination of total aluminium content — Titrimetric method
Crude sodium borates for industrial use — Determination of total aluminium content — Titrimetric method
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 марта 1975 г.
- Издание:
- ISO IS 2760 edition 1 version 1
- ICS:
- 71.060.50
Applicable to products having a total content up to 1 %. Is not applicable in the presence of zirconium or titanium. More than 0.006 % of iron will interfere in the determination. The principle bases on fusion of a test portion with sodium carbonate and extraction of the molten mass with hydrochloric acid. Formation of a complex by the addition of the disodium salt of ethylenediamintetra-ecetic acid (EDTA). Decomposition of the complex by sodium fluoride followed by titration of the liberated EDTA with a standard volumetric solution of zinc chloride in the presence of xylenol orange as indicator.
Технические детали
- Технический комитет
- ISO/TC 47 - Chemistry
- SKU
- ISO 2760:1975