Water Hardness Test Kit

  Prepare 1000 ppm standard solution- Weigh 1 gm anhydrous calcium carbonate powder into volumetric flask, then add small quantity of 1:1 HCL until all CaCO3 has dissolved. Add 200ml distilled water and boil for a few minutes to expel CO2. Cool,add few drops of methyl red indicator, and adjust to the orange colour by adding dilute NH4OH or 1:1 HCL as required. Then dilute it to 1 liter with distilled water. Dilute this standard solution with distilled water to 500 mg/l CaCO3 and analyse as described in procedure card.

• Item Code: AE211
• Delivery Time: 3 - 4 Days

The NNE-221 is a titration-based chemical test kit that determines the total hardness concentration in two ranges: 0.0 to 30.0 mg/L and 0 to 300 mg/L. The NNE-221 is supplied with all of the necessary reagents and equipment to perform the analysis. The test kit contains enough reagents for perform approximately 250 tests.Features at-a-glance Complete setup
All required materials are included with the test kit, such as the sample beaker, plastic pipette, and reagent dropper bottles.
High resolution
Readings from 0.0 to 30.0 mg/L are determined to 0.3 mg/L resolution.
Readings from 0 to 300 mg/L are determined to 3 mg/L resolution.
Replacement reagents available
There is no need to buy a new kit when reagents are exhausted. The NNE-221 -100 can be ordered to replace the reagents supplied with the kit.
Significance of UseWater hardness has traditionally been defined as the capacity of water to precipitate soap. The ionic species in the water causing the precipitation was later found to be primarily calcium and magnesium. Thus, water hardness is actually a quantitative measure of these ions in the water. It is also now known that certain other ion species, such as iron, zinc, and manganese contribute to the overall water hardness. The measure and subsequent control of water hardness is essential to prevent scaling and clogging in water pipes.