ISO 742:1973

Sodium carbonate for industrial use — Determination of chloride content — Mercurimetric method
The method is applicable to products of which the sodium chloride content is greater than 0,005 % (m/m). The prinziple consists in titration of the chloride ion with mercury(II) nitrate solution in the presence of diphenylcarbazone as indicator. Cancels and replaces ISO Recommendation R 742-1968.
SDO:
ISO
Language:
English
ICS Codes:
71.060.50
Status:
Withdrawn
Publish date:
1973-01-31
Standard Number:
ISO 742:1973