Standard substances used for redox titration
For general information of what the standard substance is and what criteria it should meet, please read the standard substances page.
Remember to use analytical reagents (AR grade) for standards.
Sodium oxalate Na2C2O4 - dry at 105-110°C. Equivalent weight is one-half the formula weight (133.9985 g).
Arsenic oxide As2O3 - dry for 2 hours at 105-110°C. Equivalent weight is one-fourth the formula weight (197.8414 g).
Potassium iodate KIO3 - dry for 2 hours at 150°C. Equivalent weight is one-sixth the formula weight (214.001 g).
