ISO 2760:1975
Crude sodium borates for industrial use; Determination of total aluminium content; Titrimetric method
- Standard No.
- ISO 2760:1975
- Release Date
- 1975
- Published By
- International Organization for Standardization (ISO)
- Status
- 2002-05
- Latest
- ISO 2760:1975
- Scope
- 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.
ISO 2760:1975 history
- 1975 ISO 2760:1975 Crude sodium borates for industrial use; Determination of total aluminium content; Titrimetric method
