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Saline water (more commonly known as salt water) is water that contains a high concentration of dissolved salts (mainly sodium chloride). On the United States Geological Survey (USGS) salinity scale, saline water is saltier than brackish water, but less salty than brine.
Aug 7, 2023 · Here's what to know about drinking salt water. What are the benefits of drinking salt water? The primary benefit of drinking salt water pertains to increasing hydration.
- Aayushi Gupta
- Rehydration and electrolyte balance. Drinking water in any form helps you stay hydrated but salt water helps maintain the right electrolyte balance as well.
- Promotes digestive health. When consumed in moderation, salt water can help promote better digestion. A 2010 study in the Journal of Alternative and Complementary Medicine showed that salt water can help with bowel movements.
- Detoxification. Drinking salt water may have detoxifying properties, which can help flush out toxic compounds from your body via sweating. In addition, salt water can activate the kidneys and liver, which helps the body eliminate waste.
- Good for skin. Salt water can also improve your skin health. When applied topically, salt water can help exfoliate and rejuvenate the skin, reducing acne, psoriasis, and eczema symptoms.
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- Overview
- Chemical and physical properties of seawater
- Chemical composition
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seawater, water that makes up the oceans and seas, covering more than 70 percent of Earth’s surface. Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases.
Seawater constitutes a rich source of various commercially important chemical elements. Much of the world’s magnesium is recovered from seawater, as are large quantities of bromine. In certain parts of the world, sodium chloride (table salt) is still obtained by evaporating seawater. In addition, water from the sea, when desalted, can furnish a limitless supply of drinking water. Many large desalination plants have been built in dry areas along seacoasts in the Middle East and elsewhere to relieve shortages of fresh water.
The six most abundant ions of seawater are chloride (Cl−), sodium (Na+), sulfate (SO24−), magnesium (Mg2+), calcium (Ca2+), and potassium (K+). By weight these ions make up about 99 percent of all sea salts. The amount of these salts in a volume of seawater varies because of the addition or removal of water locally (e.g., through precipitation and evaporation). The salt content in seawater is indicated by salinity (S), which is defined as the amount of salt in grams dissolved in one kilogram of seawater and expressed in parts per thousand. Salinities in the open ocean have been observed to range from about 34 to 37 parts per thousand (0/00 or ppt), which may also be expressed as 34 to 37 practical salinity units (psu). See also salinity.
Inorganic carbon, bromide, boron, strontium, and fluoride constitute the other major dissolved substances of seawater. Of the many minor dissolved chemical constituents, inorganic phosphorus and inorganic nitrogen are among the most notable, since they are important for the growth of organisms that inhabit the oceans and seas. Seawater also contains various dissolved atmospheric gases, chiefly nitrogen, oxygen, argon, and carbon dioxide. Some other components of seawater are dissolved organic substances, such as carbohydrates and amino acids, and organic-rich particulates. These materials originate primarily in the upper 100 metres (330 feet) of the ocean, where dissolved inorganic carbon is transformed by photosynthesis into organic matter.
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Water and its Varying Forms
The chemical composition of seawater is influenced by a wide variety of chemical transport mechanisms. Rivers add dissolved and particulate chemicals to the oceanic margins. Wind-borne particulates are carried to mid-ocean regions thousands of kilometres from their continental source areas. Hydrothermal solutions that have circulated through crustal materials beneath the seafloor add both dissolved and particulate materials to the deep ocean. Organisms in the upper ocean convert dissolved materials to solids, which eventually settle to greater oceanic depths. Particulates in transit to the seafloor, as well as materials both on and within the seafloor, undergo chemical exchange with surrounding solutions. Through these local and regional chemical input and removal mechanisms, each element in the oceans tends to exhibit spatial and temporal concentration variations. Physical mixing in the oceans (thermohaline and wind-driven circulation) tends to homogenize the chemical composition of seawater. The opposing influences of physical mixing and of biogeochemical input and removal mechanisms result in a substantial variety of chemical distributions in the oceans.
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Seawater is a complex mixture of water, salts, and other substances that covers more than 70 percent of Earth's surface. Learn about the chemical and physical properties, distribution, and uses of seawater, as well as its influence on climate and life.
On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium ( Na+. ) and chloride ( Cl−. ) ions ).
- 1.94
- 85.84
- 10.82
- 1.08
Aug 7, 2019 · Learn how to make sole water, a mixture of salt and water, and how it is used to detox the body and cleanse the colon. Find out the potential side effects of drinking salt water, such as dehydration and high blood pressure.
Learn how rain, erosion, and evaporation create fresh water on land and salty water in the ocean. Explore the role of hydrothermal vents and volcanoes in adding salts to seawater.
