{"id":2367,"date":"2017-10-24T09:00:17","date_gmt":"2017-10-24T09:00:17","guid":{"rendered":"http:\/\/www.experimentoscientificos.es\/?page_id=2367"},"modified":"2017-10-24T09:01:19","modified_gmt":"2017-10-24T09:01:19","slug":"kh-del-agua","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/ph\/ph-del-agua\/kh-del-agua\/","title":{"rendered":"Water KH"},"content":{"rendered":"

When we talk about the Water pH<\/a>In the case of water hardness, a parameter that is of great importance is the hardness or KH of the water.<\/p>\n

WHAT IS THE KH OF WATER<\/h2>\n
Carbonate Hardness - KH, or the measure of alkalinity of the water, indicates the concentrations of carbonates (calcium and magnesium) dissolved in the water: it tells us how much capacity the water in our aquarium has to maintain a stable pH (buffer capacity). The higher the carbonate hardness, the greater the water's ability to sustain a stable pH.<\/strong><\/div>\n

Acids (decomposition of organic waste, addition of CO2, etc.) are produced in the aquarium and become concentrated and lower the pH value of the water. Some substances added to the water do not allow the pH to change. These substances are called buffers.<\/p>\n

The corals, made up of carbonates, play the role of balancing the pH of the ocean as a whole. This is why the disappearance of corals is so important for the overall health of the ocean, and therefore of the earth.<\/p>\n

\"Corales<\/p>\n

HOW TO RAISE THE KH OF WATER<\/h2>\n

To increase the carbonate hardness of the water, we simply add carbonate to the solution, either sodium carbonate<\/a>bicarbonate of soda, or potassium carbonate<\/a> - potassium bicarbonate.<\/p>\n

The formulas for bicarbonate and sodium carbonate respectively are: NaHCO3,\u00a0<\/sub>Na2CO3. On entering the water, the ions dissociate, creating an equilibrium in the water, with the dissolved H+ protons, creating the following equilibrium reactions.<\/p>\n