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Ferroin indicator solution
Boiling point (bp) 100 °C
Melting point (mp) <0 °C
WGK 2
ready-to-use
45,05 €/VE
Excl. btw | 100 ml Per VE
Bestelnr. T131.1
Productdetails
Ferroin indicator solution for sewage analysis, for COD determination
| Kleuromslag | red - blue |
| Ox.-kleur | blauw |
| Ger.-kleur | rood |
| Redoxpotentiaal E0[V] bij pH=0 en 20 °C | 1,06 |
- Tussentotaal: 0.00
| Bestelnr. | VE | Verp. | Prijs | Hoeveelheid | |
|---|---|---|---|---|---|
| T131.1 | 100 ml | glass |
45,05 € |
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- Tussentotaal: 0.00
Downloads / MSDS
Algemene informatie
Determination of chemical oxygen demand (COD)
COD (chemical oxygen demand) is a measure of all the oxidisable components in water under specific conditions. The water sample is mixed with sulphuric acid and heated together with a defined quantity of potassium dichromate, with silver sulphate added as the catalyst. Chloride must be removed beforehand or masked with mercury sulphate. The remaining potassium dichromate is measured by means of titration, using an ammonium iron(II) sulphate solution and ferroin as the indicator. The equivalent amount of oxygen can then be calculated from the amount of potassium dichromate that is used up.
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