Hard water contain calcium bicarbonate, magnesium bicarbonate in temporary hard water and calcium/magnesium sulfate in permanent hard water.
Soft water contain doesn't contain these substances or only in very limited concentations.
Hard water contains high levels of dissolved minerals such as calcium and magnesium, which can lead to scale buildup in pipes and appliances. Soft water, on the other hand, has been treated to remove these minerals, making it less likely to cause scale buildup. The main equation to differentiate hard water from soft water is the presence of these dissolved minerals in hard water.
Calcium and magnesium are minerals commonly found in higher concentrations in hard water compared to soft water. These minerals can contribute to the formation of limescale in pipes and appliances.
Hard water tends to produce less lather compared to soft water. This is because hard water contains minerals like calcium and magnesium which can react with soap, forming insoluble compounds that reduce lather formation. Soft water, on the other hand, does not contain these minerals and allows soap to lather more easily.
Soft water produces more lather when soap is added compared to hard water. Soft water has fewer minerals, such as calcium and magnesium, which can react with soap to form a scum that reduces lather production.
Tap water with lots of dissolved limestone is hard. If the calcium ions are replaced with sodium ions it is said to be soft. To determine if your tap water is hard, you can test it by using tincture of green soap. The softer the water, the more the foam. See the attached link.
Soft or hard water has to do with the amount of dissolved minerals in water and what those minerals are. "Harder" water has more dissolved minerals (like calcium.)
Mineral content. more minerals means hard
Hard water contains high levels of dissolved minerals such as calcium and magnesium, which can lead to scale buildup in pipes and appliances. Soft water, on the other hand, has been treated to remove these minerals, making it less likely to cause scale buildup. The main equation to differentiate hard water from soft water is the presence of these dissolved minerals in hard water.
Calcium and magnesium are minerals commonly found in higher concentrations in hard water compared to soft water. These minerals can contribute to the formation of limescale in pipes and appliances.
Hard water is generally a weaker solvent compared to soft water. This is because hard water contains minerals like calcium and magnesium, which can reduce its ability to dissolve other substances effectively. Soft water, on the other hand, lacks these minerals and is better at dissolving substances, making it a more efficient solvent.
Hard water has a lower foaming capacity compared to soft water because the presence of minerals such as calcium and magnesium interferes with the formation of soap lather. Soft water, on the other hand, allows for more effective lathering with soap due to the absence of these minerals.
rain water soft whilst falling,when it hits the ground or into rivers it mixes minerals etc which in in turn turn it hard some area like devon it stay soft
River water is generally considered soft water because it contains low levels of minerals like calcium and magnesium. Hard water typically comes from sources like groundwater or wells, where it has passed through mineral-rich rocks.
the difference is that soft water contains no dissolved minerals.the hard water contains dissolved minerals
Hard water tends to produce less lather compared to soft water. This is because hard water contains minerals like calcium and magnesium which can react with soap, forming insoluble compounds that reduce lather formation. Soft water, on the other hand, does not contain these minerals and allows soap to lather more easily.
The presence of calcium and magnesium salts in the form of hydrogencarbonate, chloride and sulphate in water makes water 'hard'. Hard water does not give lather with soap. Whereas, water free from souluble salts of calcium and magnesium is called soft water. It gives lather with soap. And also hard water forms scum(precipitate) with soap, therefore unsutable for laundry but soft water does not form scum.
Hard water typically has a higher pH level due to the presence of dissolved minerals like calcium and magnesium, which can act as buffers. Soft water, on the other hand, tends to have a lower pH due to the lack of these minerals. Overall, the impact on pH level can vary depending on the specific composition of the water source.