HI3844

Description

The HI3843 is a chemical test kit that measures hypochlorite by iodometric titration. The HI3843 is supplied complete with all of the reagents and equipment necessary to perform approximately 100 tests. The HI3844 is a titration-based chemical test kit that determines the hydrogen peroxide concentration in two ranges: 0.00 to 2.00 mg/L and 0.0 to 10.0 mg/L.

•  All reagents marked with expiration date and lot number for traceability
•  Manual titration performed with color indicator
•  Pre-made reagents for ease of use

Features at-a-glance
Complete setup
•  All required materials are included with the test kit, such as the sample beaker, indicator and reagent bottles, spoon, and plastic pipettes.

  High resolution
•  Readings from 0.00 to 2.00 mg/L are determined to 0.25 mg/L resolution
•  Readings from 0.0 to 10.0 mg/L are determined to 1.0 mg/L resolution

  Replacement reagents available
•  There is no need to buy a new kit when reagents are exhausted. The HI3844-100 can be ordered to replace the reagents supplied with the kit.

  Significance of Use
•   Hydrogen peroxide (H₂O₂) is widely used as a disinfectant and as a bleach for textiles, wood pulp, and hair, just to name a few. It is also used as a substitute for chlorine in water and sewage treatment.
Most common commercial forms are aqueous solutions containing about 6, 12 and 30% hydrogen peroxide and are referred to as “20-volume,” “40-volume,” and “100-volume” respectively, referring to the value of oxygen liberated when the solution is boiled.
The Hanna test kit can quickly and easily determine concentration in water up to 10 mg/L of hydrogen peroxide. This is due to the fact that it is not affected by stabilizers, which are sometimes added to commercial hydrogen peroxide solutions.
•  In the HI3844 test kit, hydrogen peroxide reacts slowly with iodide in acid solution (Step 1); thus a 15 minute interval is required to allow the reaction to occur completely. The amount of iodine generated is equivalent to the hydrogen peroxide in the sample.
The liberated iodine is then titrated with standard sodium thiosulfate solution that reduces the iodine back to iodide ions (Step 2).
•  Step 1: H₂O₂ + 2H⁺ + 2I^– → I₂ + 2H₂O
•  Step 2: I₂ + 2(S₂O₃)^2- → 2I^– + (S₄O₆)^2-

   SPECIFICATIONS

Range :	0.00 to 2.00 mg/L H₂O₂; 0.0 to 10.0 mg/L H₂O₂
Resolution :	0.25 mg/L (0.00 to 2.00 mg/L range); 1.0 mg/L (0.0 to 10.0 mg/L range)
Method :	iodometric
Number of Tests :	100
CTK Type :	Titration
Ordering Information:	HI3844 test kit comes with 100 mL hydrogen peroxide reagent A, 17 g hydrogen peroxide reagent B, 30 mL hydrogen peroxide reagent C, 25 mL hydrogen peroxide reagent D, graduated plastic test tube with cap, 50 mL calibrated plastic vessel, 3 mL plastic pipette, 1 mL plastic pipette and plastic spoon.
Proposition 65 :	WARNING: This product can expose you to chemicals including Chloroform, which is known to the State of California to cause cancer.