| REF No |
7012 |
| Purpose |
It is used for the determination of total hardness in waters with low alkalinity. |
| Ingredients |
Methyl red, eriochrome black T, ethanol 96%, etta disodium salt, magnesium chloride, tris base, triethanolamine. |
| Working Principle |
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| Warnings, Precautions, Recommendations |
Not classified as hazardous according to the Regulation on SEA of Substances or Mixtures (OG 11.12.2013 No: 28848 bis) and Directive 1272&2008 [CLP/GHS](EC). |
| Application
|
1) Take the 20 ml measured transparent container from the set box.
2) Add the water sample to be analysed up to the 5 ml mark.
3) Total Hardness Test without Alkalinity; 1 drop is added and mixed by holding the dropper mouth of the titrimetry bottle at a right angle of 90 degrees. Care should be taken to ensure that the drops do not have air bubbles.
4) If a red-pink colour is formed, continue to add dropwise the Total Hardness Test Kit without Alkalinity; titrimetric.
5) Stir after each drop.
6) Continue dripping until the colour turns bluish green.
7) When a bluish green colour is formed, the titration is terminated. |
| Theoretical Results |
The number of drops spent gives the total hardness of the water sample.
1 Drop = 1 AS (GERMAN HARDNESS) = 10 mg/l CaO = 1,79 FS
Hardness Presence Pinkish red. End Point Bluish green
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| Related Media
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| Shelf Life |
2 years |
| Shelf Life After Opening the Lid |
After opening the lid, it can be used throughout its expiry date when stored under recommended storage conditions. |
| Storage Temperature |
5/25 °C |
| pH (at 25°C) |
|
| Transportation Information
|
Carriage/shipment by road (ADR/RID) - UN1993, Ethanol 96%, 3, II
Carriage/shipment by sea (IMDG) - UN1993, Ethanol 96%, 3, II
Carriage/shipment by air (ICAO/IATA) - UN1993, Ethanol 96%, 3, II |
| Ordering and Packaging Information |
|
Order No |
Unit |
Volume |
Packaging Type |
Quantity in a Carton |
Quantity in a Box |
|
457012030050 |
Kit |
50 ml |
50 ml, HDPE White Bottle with Dropper |
1 |
80 |
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| Keywords
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