Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Total hardness indicator, tablets for hardness of water determinations

Supplier: VWR Chemicals
Indicator tablets for determination of water hardness by titration with EDTA.

The tablets are dissolved in 100 ml of the water sample to be tested, which has been buffered at pH 10 with 1 ml of Ammonia/ Ammonium chloride buffer solution, and then titrated with EDTA solution (0.01M) till the sample turns from red to blue.

Total hardness in mg/l = 10 x ml of titrant used.

Control samples of calcium carbonate should be used to calibrate the method.



Expand All / Collapse All
Description Pk Pack type VWR Catalog Number Quantity
Total hardness indicator, tablets 0.2g 100 Tab. Plastic bottle 160232E
Get a discount if you order 10 or more. Login in now for details.
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page

Enter Details

Select the article for which you are looking for Certificate

Indicate the Lot Number. This field is mandatory. Enter 'x' if unknown for VWR Chemicals

Enter Certificate Details

Enter the Lot number:

Choose from recent batch/lot numbers:

Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty

a new look and a renewed commitment

Built on the features & resources you know, optimized with innovation from Avantor®. Our new brand symbolizes agility and our ability to adapt to customer needs.

Learn More Start Shopping