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Water color can reveal physical, chemical and bacteriological conditions. In drinking water, green can indicate copper leaching from copper plumbing and can also represent algae growth. Blue can also indicate copper, or might be caused by syphoning of industrial cleaners in the tank of commodes, commonly known as backflowing.
The reaction with hydrochloric acid is an equilibrium reaction that favors formation of tetrachloroaurate(III) anions. This results in a removal of gold ions from solution and allows further oxidation of gold to take place. The gold dissolves to become chloroauric acid. In addition, gold may be dissolved by the chlorine present in aqua regia.
Hard water has a high mineral content, which can lead to scaling in pipes, washing machines and kettles, as well as cloudy residue on dishes, glassware and around the shower.
The dark brown water in the inland waterways contains high concentrations of CDOM. As this dark, CDOM-rich water moves offshore, it mixes with the low CDOM, blue ocean water from offshore. Colored dissolved organic matter (CDOM) is the optically measurable component of dissolved organic matter in water.
Apr. 4—Mililani Mauka's public water supply is fine, in quantity and quality, a Board of Water Supply spokesperson says. Question : Is the Board of Water Supply aware that residents in Mililani ...
Cloudy urine is only a symptom, not a disease, says Dr. Ramin. “So once a person has cloudy urine, we have to determine what the source of the cloudy urine is.”
Cobalt chloride is pink or blue depending on the state of hydration (blue dry, pink with water) so it is used as a moisture indicator in silica gel. Zinc oxide is white, but at higher temperatures becomes yellow, returning to white as it cools.
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