ISO 5790:1979 PDF
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Inorganic chemical products for industrial use — General method for determination of chloride content — Mercurimetric method
Covers a method enabling quantities of chloride eceeding 1 mg in the test portion to be determined with an absolute error of 0,2 to 0,5 mg, according to the concentration of the standard volumetric solution used. The principle of determination is based on the conversion of chloride ions into weakly ionized mercury(II) chloride, using highly ionized standard volumetric mercury(II) nitrate solution, and detection of the end-point by reaction of the excess of mercury(II) nitrate with 1,5-diphenyl-carbazone used as an indicator, by the apparance of a violet colour.
| Edition | 1979 |
|---|---|
| Published Date | 1979 |
| Published By | International Standardization Organisation |
| Page Count | 9 |
