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Chlorine Dioxide |
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Method
References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 330.5 (1983). APHA Standard Methods, 20th ed., pp. 4-76, Method 4500- ClO2 D and pp. 4-63 Method 4500-Cl G (1998).
Chlorine dioxide is used as an oxidizing microbiocide in industrial cooling water treatment, the dairy industry, the meat industry, and many other food and beverage industry applications. It is used as a bleaching agent in the pulp and paper industry, and as a disinfectant in municipal water treatment. Industrial waste treatment facilities use chlorine dioxide because of its selectivity for certain compounds, including phenols, sulfides, cyanides, thiosulfates, and mercaptans. The oil and gas industry uses chlorine dioxide for downhole applications and as a stimulation enhancement additive. The Maximum Residual Disinfectant Level for chlorine dioxide is 0.8 mg/L in drinking water.
In the standard DPD methodology, chlorine dioxide reacts with DPD (N, N-diethyl-p-phenylenediamine) to form a pink product. Interference from free Cl2 is prevented (up to 6 ppm Cl2) by the addition of glycine to the sample. Results are expressed as ppm (mg/L) ClO2. |
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| • Click to View MSDS and Kit instructions |
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 Visual Kits |
0-2 & 2-10 ppm
0.1 ppm / Method: DPD |
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Cat# |
| CHEMets Kit |
K-2705 |
| | CHEMets Refill, 30 ampoules | R-2705 |
| | Neutralizer Solution Pack, six 10 mL bottles, Shelf-life 8 months | A-2700 |
| | Low Range Comparator, Shelf-life 1 year:
0, 0.2, 0.4, 0.6, 0.8, 1.2, 1.6, 2.0 ppm | C-2702 |
| | High Range Comparator, Shelf-life 1 year:
2, 3, 4, 5, 6, 7, 8, 9, 10 ppm | C-2710 |
| | Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Low and High Range Comparators, Neutralizer Solution, 25 mL sample cup, instructions, and MSDS. | |
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 Instrumental Kits |
0.80-11.00 ppm
DPD |
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Cat# |
| Vacu-vials Kit, Shelf-life 8 months |
K-2703 |
| | Kit comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules, Neutralizer Solution, 25 mL sample cup, ampoule blank, instructions, calibration table, and MSDS. | |
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1.0-11.00 ppm
DPD |
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Cat# |
| SAM Kit |
I-2005 |
| | Vacu-vials Kit, 30 ampoules, Neutralizer Solution, 25 mL sample cup, ampoule blank, instructions, calibration table, and MSDS, Shelf-life 8 months. | K-2703 |
| | SAM Kit comes in a plastic case and contains everything needed to perform 30 tests: Vacu-vials Kit, SAM Photometer, 2 AA batteries, and instructions. | |
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Kit Components common to Chlorine Dioxide |
| Description |
Cat# |
| | Sample Cup Pack, 25 mL (6 ea) | A-0013 |
| | Ampoule Blank Pack (5 ea) | A-0023 |
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