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The available chlorine refers to the chlorine liberated by the action of dilute acid on the hypochlorite:(OCl)— + Cl— + 2H+ → Cl2 + H2O
An iodometric titration method is used in this test kit. The hypochlorite solution is treated with potassium iodide and strongly acidified with acid:(OCl)— + 2H+ + 2I— → Cl— + I2 + H2O
The amount of iodine generated is equivalent to the chlorine in the sample. The concentration of iodine is then calculated by titration of thiosulfate ions that reduce the iodine back to iodide ions: I2 + 2(S2O3)2– → 2I— + (S4O6)2-
Order Information:HI 3843 test kit comes with 30 mL potassium iodide solution. 100 packets bleach reagent B. 60 mL bleach reagent C (2). 125 mL glass Erlenmeyer flask and 1 mL plastic pipettes (25).
Click on the links below to download the Safety Data Sheet.
This product is available upon request. Contact us for more information.
61 Hugo Johnston Dr,
Ph: 0508 422 676
Acorn Scientific is a privately owned NZ business who have been supplying products to the NZ laboratory market since 1997.