Carbon Dioxide 5Titration / Drop Count Test for Carbon Dioxide 1 drop = 5 mg/L CO2 |
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| Product Code | 607200 |
| Contents | Indicator, 6 mL Titration Solution, 15 mL Test Tube, 10 mL Instructions for Use |
| Analytical Method | Alkalimetric Titration: The water sample is titrated with sodium hydroxide to the pH of 8.2 against a pH indicator (phenolphthalein). |
| Number of Tests | 50 – 80 (depending on carbon dioxide levels) |
| Interferences | This test is suitable for natural waters not high in total dissolved solids. Positive interferences are caused by metal ions that precipitate in alkaline solution (aluminium, chromium, copper, iron), as well as by weak bases (ammonia, amines) and salts of weak acids and strong bases (borate, nitrite, phosphate, silicate, sulphide). Such substances should not exceed 5 % of the carbon dioxide concentration. |
| Measuring Range | The recommended measuring range is 10 to 100 mg/L (2 – 20 drops @ 5 mg/L) for 5 mL of sample volume. This range can be extended by taking a smaller or larger water sample. For a 2.5 mL sample the measuring range is 20 to 200 mg/L and for a 10 mL sample the range is 5 to 50 mg/L. |
| Shelf Life | 2 years |
| Applications | Determination and monitoring of carbon dioxide levels ground water (bore water) and in aquaculture. |