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We often talk about water of different qualities in our daily life and very often we are faced with certain problems caused by hard water.
The total hardness (TH) consists of all calcium (Ca) and magnesium (Mg) salts dissolved in it. Water hardness consists of two types of hardness, carbonate, and non-carbonate.
Carbonate hardness consists of calcium and magnesium bicarbonates Ca(HCO3)2 and Mg(HCO3)2. Non-carbonate hardness consists of all their other salts such as chlorides, nitrates, sulfates, etc.
After washing in hard water, stains from precipitated limescale remain which are very difficult to remove, textiles washed in “hard” water become stiff due to the deposition of limescale on fine textile fibers, and washing in hard water consumes more detergents due to the reaction of detergents with hardness salts and, creation of insoluble soaps – soap scum.
Using soft water can solve all these problems.
What else can I help you with?
What is difference between carbonate and noncarbonate hardness?
Carbonate hardness is the measure of hard ions associated with carbonate and bicarbonate anions contained in the water.Noncarbonate hardness is the portion of total hardness in water that is not produced by carbonates, but primarily by sulfate anions.
What are the two form of hardness found in water?
Hardness in water is usually characterised as temporary or permanent. Both are due to the presence of calcium or magnesium ions. If they are present as the hydrogen carbonate, when the water is boiled this is converted to the carbonate which precipitates out as a solid, leaving water which is no longer hard, so this is called temporary hardness. If they are present as the sulfate the solution is unaffected by boiling, and this is called permanent hardness.
What causes permanent hardness of water?
Permanent hardness of water is caused by the presence of dissolved calcium sulfate and magnesium sulfate, which cannot be removed through boiling. These minerals form insoluble compounds that remain in the water even after treatment, leading to permanent hardness.
What other substances cause permanent hardness?
Temporary hardness of water is due to the presence of calcium hydrogentrioxocarbonate(IV) which decompose on heating.when this water is heated calcium trioxocarbonate(iv) is form as insoluble and this brings the ca+ out of the solution as precipitate.once the ca+ re out of the solution soap can now lather well.
What is pseudo hardness of water?
Pseudo hardness of water refers to the presence of certain dissolved minerals, primarily calcium and magnesium, that affect water's behavior but do not contribute to its actual hardness. This concept is often used to describe situations where water appears hard due to the presence of certain ions, but the hardness is not strong enough to cause scale formation or significant impacts on cleaning and soap efficiency. Pseudo hardness can be influenced by factors like temperature and pH, distinguishing it from true hardness, which is typically measured in terms of calcium carbonate concentration.
How can you destroy permanent hardness of water due to sulphates of metals?
zeolites
What other substance cause by permanent hardness?
Permanent hardness in water is hardness due to the presence of the chlorides, nitrates and sulphates of calcium and magnesium, which will not be precipitated by boiling.
What is difference between carbonate and noncarbonate hardness?
Carbonate hardness is the measure of hard ions associated with carbonate and bicarbonate anions contained in the water.Noncarbonate hardness is the portion of total hardness in water that is not produced by carbonates, but primarily by sulfate anions.
What are the two form of hardness found in water?
Hardness in water is usually characterised as temporary or permanent. Both are due to the presence of calcium or magnesium ions. If they are present as the hydrogen carbonate, when the water is boiled this is converted to the carbonate which precipitates out as a solid, leaving water which is no longer hard, so this is called temporary hardness. If they are present as the sulfate the solution is unaffected by boiling, and this is called permanent hardness.
Which does not cause hardness of water?
Magnesium sulfate (MgSo4) does not cause hardness of water.
What causes permanent hardness of water?
Permanent hardness of water is caused by the presence of dissolved calcium sulfate and magnesium sulfate, which cannot be removed through boiling. These minerals form insoluble compounds that remain in the water even after treatment, leading to permanent hardness.
What other substances cause permanent hardness?
Temporary hardness of water is due to the presence of calcium hydrogentrioxocarbonate(IV) which decompose on heating.when this water is heated calcium trioxocarbonate(iv) is form as insoluble and this brings the ca+ out of the solution as precipitate.once the ca+ re out of the solution soap can now lather well.
What is pseudo hardness of water?
Pseudo hardness of water refers to the presence of certain dissolved minerals, primarily calcium and magnesium, that affect water's behavior but do not contribute to its actual hardness. This concept is often used to describe situations where water appears hard due to the presence of certain ions, but the hardness is not strong enough to cause scale formation or significant impacts on cleaning and soap efficiency. Pseudo hardness can be influenced by factors like temperature and pH, distinguishing it from true hardness, which is typically measured in terms of calcium carbonate concentration.
How does boiling water affect the hardness of water?
Boiling water does not affect the hardness of water. Hardness in water is caused by minerals like calcium and magnesium, which remain in the water even after boiling.
How do you get rid of water hardness?
Salt is sometimes used to remove water hardness. Borax and soda are generally used as well to remove water hardness.
Wat salt is responsible for temporary and permanent hardness of water?
Temporary hardness of water: CaHCO3, MgHCO3 Permanent hardness of water: CaSO4, MgSO4
Permanent hardness of water due to?
Permanent hardness of water is typically caused by the presence of calcium sulfate (CaSO4) and magnesium sulfate (MgSO4) in the water. These minerals do not precipitate out of solution when water is boiled, unlike temporary hardness caused by calcium bicarbonate which can be easily removed by boiling. Permanent hardness can be removed through processes like ion exchange or chemical precipitation.
