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A descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles. Limescale is either white or brown in colour due to the presence of iron compounds. Glass surfaces may also exhibit scaling stains, as can many ceramic ...
The type found deposited on the heating elements of water heaters consists mainly of calcium carbonate (CaCO 3). Hard water contains calcium (and often magnesium ) bicarbonate or similar ions. Calcium, magnesium, and carbonate ions dissolve from rocks through which rainwater percolates before collection.
A. O. Smith Corporation is an American manufacturer of both residential and commercial water heaters and boilers, and the largest manufacturer and marketer of water heaters in North America. It also supplies water treatment and water purification products in the Asian market. [ 6 ]
Mr Meah ran to a nearby house and asked for an ambulance to be called, but lost consciousness before paramedics arrived and was pronounced dead after being taken to hospital.
The Summary. A report from the U.S. surgeon general suggested that labels on alcoholic drinks should warn about cancer risk. Doctors expressed their agreement.
A new study suggests that a diet filled with protein and fiber may be the most effective for weight loss. Here's what a dietitian wants you to know.
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