{"id":1313,"date":"2017-02-23T14:41:51","date_gmt":"2017-02-23T14:41:51","guid":{"rendered":"http:\/\/www.experimentoscientificos.es\/?p=1313"},"modified":"2022-03-22T09:57:20","modified_gmt":"2022-03-22T09:57:20","slug":"ph-del-agua","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/ph\/ph-del-agua\/","title":{"rendered":"Water pH"},"content":{"rendered":"

If there is an environment where the pH study<\/a> is essential, it is in the water. First of all, it is important to know the pH scale<\/a>. As you can see on the pH scale, neutral pH corresponds to pH=7. Lower pH values are acidic pH values and values higher than 7 are alkaline values (up to 14 which is the maximum on the pH scale).<\/p>\n

\"ph<\/p>\n

WATER PH VALUES<\/strong><\/h2>\n

In this table we show you the average values for different types of water, then you can read below the values for each type of water, depending on whether it is distilled water, sea water, drinking water or mineral water.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
TYPE OF WATER<\/strong><\/td>\nPH<\/strong><\/td>\n<\/tr>\n
DISTILLED WATER<\/a><\/td>\n\u00a05,8 \u00a0read more<\/a><\/td>\n<\/tr>\n
DRINKING WATER<\/a><\/td>\n\u00a06,5-9,5<\/td>\n<\/tr>\n
MINERAL WATER<\/a><\/td>\n\u00a04,5-9,5<\/td>\n<\/tr>\n
SEA WATER<\/a><\/td>\n\u00a07,5-8,4<\/td>\n<\/tr>\n
AQUARIUM WATER<\/a><\/td>\n\u00a06,8-7,2<\/td>\n<\/tr>\n
SWIMMING POOL WATER<\/a><\/td>\n7,2-7,6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

PH OF DISTILLED WATER<\/span><\/strong><\/h3>\n

The pH in distilled water is 5.8. <\/strong>You may be surprised to learn this, but here you can find out why the pH of distilled water is not 7.<\/p>\n

Distilled water is obtained by evaporating water (where only water evaporates). Once the water vapour has evaporated, it is condensed back to water. In this case you will have obtained distilled water, and its pH as pure water would be 7.<\/p>\n

In practice, as soon as the distilled water comes into contact with the atmosphere, it dissolves the carbon dioxide until it is in equilibrium with the atmosphere. This occurs at a pH of 5.8. So most of the time you use distilled water it will be at a pH of that value.<\/p>\n

Distilled water is commonly used in scientific applications where pure H2O is required. It is also used in industrial applications where salts in the water could damage equipment. It is used in soap making, for watering plants. You could also drink it, although it has a very unpalatable taste.<\/p>\n

PH OF DRINKING WATER<\/span><\/strong><\/h3>\n

The pH of the drinking water should be between 6.5 and 9.5<\/strong>.<\/p>\n

There is a European standard, 98\/83\/EU. This regulation establishes maximum and minimum values for various water factors. These factors are: chlorides, nitrates, nitrites, ammonium, calcium, magnesium, phosphate, arsenic. It also establishes the pH at which drinking water should be, which is between 6.5 and 9.5.<\/p>\n

PH OF MINERAL WATER<\/strong><\/h3>\n

The pH of the mineral water between 4.5 and 9.5.<\/strong><\/p>\n

We take a study<\/a> carried out by Consumer magazine on 9 samples of mineral water of different brands and we see the pH of the study:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
WATER<\/td>\nPH<\/td>\n<\/tr>\n
Aquabona<\/td>\n7,9<\/td>\n<\/tr>\n
Solares<\/td>\n7,9<\/td>\n<\/tr>\n
Alzoya<\/td>\n7<\/td>\n<\/tr>\n
Bezoya<\/td>\n8<\/td>\n<\/tr>\n
Insalus<\/td>\n7<\/td>\n<\/tr>\n
Font Vella Salcam<\/td>\n7,9<\/td>\n<\/tr>\n
Lanjaron<\/td>\n6,2<\/td>\n<\/tr>\n
Sol\u00e1n de Cabras<\/td>\n7,7<\/td>\n<\/tr>\n
Evian<\/td>\n7,4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The average pH of the mineral water in this study is 7.5 and the lowest, most acidic pH is Lanjaron with 6.2.<\/p>\n

PH OF SEA WATER<\/span><\/h3>\n

Seawater accounts for 90% of the water on earth, and 71% of the global surface of the planet. If there is one system where it is important to study pH, it is in seawater, or ocean water. The ocean maintains an alkaline pH, with values ranging from 7,4 a 8,5<\/strong>.<\/p>\n

To see how pH is balanced in the sea and how it affects marine life and the chemical balance that enables climate regulation, we have written this longer entry: ph of sea water<\/a>. In order to stabilise the pH values, we use the term of kH of water<\/a>. The Kh will give us the ability of a system to maintain the pH at stable values.<\/p>\n

PH OF AQUARIUM WATER<\/span><\/h3>\n

The pH in the aquarium is very important for the development of the fish. Life can only exist in the aquarium if a pH between 4.5 and 9 is maintained, although it would be very difficult for life to exist at both extremes. In the aquarium, a neutral pH is considered to be between 6.8 and 7.2. For each aquatic species (animal or plant) there is an optimum pH value for its development.<\/p>\n

A large proportion of fish adapt and can develop outside their optimal range. There is no optimum pH for all species.<\/p>\n

In general, an acidic pH (below 6.8) is an acidic water, with little algae. Vegetation will have problems to grow and will grow slowly. In acidic water it is important to know that ammonia, which is produced in fish waste, is not toxic when the pH of the water is below 7. In basic water on the other hand, (pH 7.1 to 7.4) more algae develop and plants grow faster.<\/p>\n

Either phosphoric acid or CO2 can be used to lower the pH of the water. The pH can be raised and stabilised with sodium carbonate.<\/p>\n

PH OF POOL WATER<\/span><\/h3>\n

The pH of the water is a very important value to take into account in swimming pools. The action of the chlorine disinfectant in the pool will depend directly on the pH value of the pool water. On the other hand, as it is a medium where our body is going to be submerged, it is important that the pH of the pool water is kept at values that do not damage our skin.<\/p>\n

The pH in a swimming pool should always be between 7.2 and 7.6.<\/strong><\/p>\n

Above these values, chlorine will lose its effectiveness. If the pH is lower, the water will be too acidic for our body, irritating the eyes and skin of swimmers. See all about pH in swimming pools<\/p>\n

WHAT IS ALKALINE WATER<\/h2>\n

Alkaline water is a water that has the pH<\/a> There are theories that alkaline water (and food) prevents cancer. On google you can find several theories, and you can even buy bottled water with a pH equal to 9, for better health. For example, in this article you can read about how water affects our health: alkaline ionised water<\/a>. In any case, there are many theories, none of them absolute. Alkalinising water is very simple, in the following section we will show you how to alkalinise or raise the pH of water, depending on the situation for which it is used. If you want to raise the pH of your drinking water, we will do it in a different way than raising the pH of your swimming pool water.<\/p>\n

<\/h3>\n

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

We are going to see how to raise the pH, or in other words how to alkalinise the water.<\/p>\n

RAISING THE PH IN SWIMMING POOLS<\/h3>\n

It is common to need to both raise and lower the pH in swimming pools. During the day with baths, creams, and contact with the environment, people, rain, it is easy for the pH of the pool to change. For this reason, it is necessary to measure pH on a weekly basis,<\/strong> and correct it. Sodium hydroxide, NaOH (caustic soda) is used to raise the pH in swimming pools. See more information on caustic soda for swimming pools.<\/p>\n

ALKALISING WATER WITH BICARBONATE OF SODA FOR DRINKING WATER<\/h3>\n

Sodium bicarbonate is a product widely used for heartburn. It is used for heartburn as it is an alkaline element that will neutralise the acidity.<\/p>\n

That is why it can also be used to alkalinise water. Just add a teaspoon of bicarbonate to a glass of water, stir, and you will have your water alkalised. alkaline drinking water<\/strong>.<\/p>\n

MEASURING THE PH OF WATER<\/h2>\n

The pH of water is very easy to measure. All you need is a pH meter<\/a>. You have different pH measuring instruments<\/a>digital, indicator drops, and indicator paper.<\/p>\n

In this section you can see how to measure pH<\/a>in detail. Keep in mind that if you use a digital phmeter, the most important thing is always the calibration of the device.<\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

If there is one medium where the study of pH is fundamental, it is water. First of all, it is important to know the pH scale. As you can see on the pH scale, neutral pH corresponds to pH=7. Lower pH values are acidic pH values and values higher than 7 are acidic pH values.<\/p>","protected":false},"author":1,"featured_media":0,"parent":1711,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"footnotes":""},"acf":[],"yoast_head":"\npH del Agua<\/title>\n<meta name=\"description\" content=\"\u00bfEst\u00e1s buscando cual es el pH del agua? Valores del pH del agua, pH del agua de mar, pH del agua destilada, pH del agua potable,... 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