Chemetrics K-7355 | 0 - 150 PPM COD Vial For Determination of Low COD Levels in Wastewater, Contains Mercury
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- COD vial for determination of low COD levels in wastewater
- Range: 0-150 ppm
- Method: dichromate reactor digestion
- Contains mercury
- Instruction book included
- Pack of 150
- Manufacturer Part No: K-7355
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Details
Chemical oxygen demand is a measure of the oxidizable organic matter content of a wastewater sample. The sample is reacted with an acidic solution of potassium dichromate in the presence of a catalyst (silver) and digested for 2 hours at a temperature of 150°C. Oxidizable organic compounds reduce the dichromate ion (Cr2O72-) to the chromic ion (Cr3+). In the ULR and LR kits, the decrease in dichromate ion is measured colorimetrically. In the HR and HR+ kits, the amount of chromic ion produced is measured. The test results are expressed as the number of milligrams of oxygen consumed per liter of sample (mg/Liter COD) This kit comes in a cardboard box and contains everything needed to perform up to 149 tests (except distilled water): 150 vials and instruction book. Range: 0-150 ppm. Method: Dichromate Reactor Digestion. Chemetrics #: K-7355.
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Chemical oxygen demand is a measure of the oxidizable organic matter content of a wastewater sample. The sample is reacted with an acidic solution of potassium dichromate in the presence of a catalyst (silver) and digested for 2 hours at a temperature of 150°C. Oxidizable organic compounds reduce the dichromate ion (Cr2O72-) to the chromic ion (Cr3+). In the ULR and LR kits, the decrease in dichromate ion is measured colorimetrically. In the HR and HR+ kits, the amount of chromic ion produced is measured. The test results are expressed as the number of milligrams of oxygen consumed per liter of sample (mg/Liter COD) This kit comes in a cardboard box and contains everything needed to perform up to 149 tests (except distilled water): 150 vials and instruction book. Range: 0-150 ppm. Method: Dichromate Reactor Digestion. Chemetrics #: K-7355.