Kettle fur limescale
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Kettle fur limescale
Kettle fur". Coloured scanning electron micrograph (SEM) of fur from a domestic kettle, showing the crystals that form in a hard water area. The fur consists of crystals of calcium carbonate and crystals of calcium sulphate (needles). Hardness is caused by calcium salts; calcium bicarbonate (temporary) and calcium sulphate (permanent). When water containing calcium bicarbonate is boiled, the soluble bicarbonate breaks down to give the insoluble calcium carbonate. When water containing calcium sulphate is evaporated, boiled or dries out, the calcium sulphate precipitates out of solution. Magnification: x1, 250 at 6x7cm size. x2, 960 at 8x6", x1570 at 10x7cm master size"
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9193869
© POWER AND SYRED/SCIENCE PHOTO LIBRARY
Calcium Carbonate Compound Compounds Crystal Crystals Kettle Magnified Image Microscopic Photos Subjects Calcium Sulphate Hard Water
EDITORS COMMENTS
This print titled "Kettle fur limescale" offers a mesmerizing glimpse into the microscopic world of hard water deposits. The coloured scanning electron micrograph (SEM) showcases the intricate crystals that form in areas with high mineral content. The image reveals two types of crystals that make up the fur found inside a domestic kettle: calcium carbonate and calcium sulphate needles. These crystals are responsible for the hardness commonly experienced in regions with elevated levels of calcium salts, specifically calcium bicarbonate and calcium sulphate. When water containing calcium bicarbonate is heated, it undergoes a chemical reaction where the soluble bicarbonate transforms into insoluble calcium carbonate. On the other hand, when water containing calcium sulphate evaporates or dries out, the less soluble compound precipitates out of solution as visible crystals. At magnifications ranging from x1,250 to an impressive x1,570 at various print sizes, this SEM image allows us to appreciate the intricate beauty hidden within everyday objects. It serves as a reminder of how even seemingly mundane subjects can hold fascinating secrets waiting to be unveiled through scientific exploration. Captured by Science Photo Library's skilled photographers and scientists, this photograph not only highlights the aesthetic appeal but also provides valuable insights into chemistry and compounds present in our daily lives.
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