Tropic Marin KH/Alkalinity Test Professional
EUR 23,79
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weight 0,28 kg
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product description
Tropic Marin KH/Alkalinity Test Professional
Tropic Marin KH Pro - alkalinity test professional for freshwater and saltwater aquariums
The carbonate hardness (KH) * or alkalinity * of a water sample characterizes the buffering ability, the ability to maintain the pH of the water. It is decisively determined by the proportion of the hydrogen carbonate ions in the water. As the pH is increased, other basic ions such as the hydroxide ions contribute to alkalinity.
The carbonate hardness should be checked regularly in all aquariums. If the alkalinity in the aquarium is too low, the pH value (acid spurt) can be decreased for many fish and invertebrates. In reef aquariums a sufficient carbonate hardness is essential for a strong coral growth. On the other hand, too high a carbonate hardness in seawater basins can lead to limescale precipitation and negatively affect the growth of the corals.
In water chemistry, there are several terms for describing bufferability with different definitions. In aquaristics, the term "carbonate hardness" is common; But the alkalinity is measured. In this test, both terms are used identically.
The data for the carbonate hardness is usually given in degrees of German hardness (° dH). A table for the conversion into other common units (such as Milllival per liter or the masscan be found in the operating instructions. In the oceans, the carbonate hardness is 6.5 ° dH. The carbonate hardness should be between 6 and 9 ° dH in the seawater aquarium. In freshwater aquariums, the carbonate hardness should not drop below 3 ° dH. The optimal value for the alkalinity in the freshwater aquarium depends on the fish and plant species to be cultivated. Ask your dealer for the correct carbonate hardness for your aquarium.
Contents of package
- 10 ml of reagent A
- 50 ml of reagent B
- 1 glass cuvette 10 ml
- 1 dosing syringe 5 ml
- 1 dosing syringe 1 ml with dropper tips
- 1 instruction for use
Instructions
Inject the syringe into the liquid. The dosing syringes are always read on the piston, even if the air is between the piston and the liquid (due to the dead volume of the syringe attachment). The air bubble does not affect the test result.
- Shake the dripping bottle before use!
- Rinse the glass cuvette with tap water and then several times with aquarium water.
- Use the dosing syringe to fill exactly 5 ml of aquarium water into the glass cuvette.
- Then add 3 drops of reagent A (indicator) and carefully swing the cuvette. The water sample is turquoise.
- Attach the supplied syringe attachment to the small syringe and draw 1 ml of reagent B (titrator).
- Now add the reagent B from the syringe dropwise until the water has changed its color from turquoise blue to dark blue and violet to a clear pink. After each drop carefully swing the cuvette. The measurement is terminated when the color of the sample has reached a clear pinon without blasting.
- The consumption of reagent B (difference to 1 ml) multiplied by 10 gives the carbonate hardness in ° dH.
Example: If the lower end of the syringe is 0.28 ml after the end of the titration, the reagent B consumption is 0.72 ml (difference to 1 ml): 0.72 x 10 = 7.2. The carbonate hardness of the aquarium water is 7.2 ° dH.
For a longer range of the test reagents or for hard water above 10 ° dH, the test can be carried out with 2.5 ml of sample. Proceed as described above and multiply the reagent B by 20 by the end of the titration. - After the measurement, rinse the glass cuvette and syringe thoroughly with tap water.
6 months after opening. Store in a cool, dark place.
Warning
H226 Flammable liquid and vapour.
P102 P210
Keep out of the reach of children. Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. Do not smoke
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