Cobalt chloride paper with drop of water
Wall Art and Photo Gifts from Science Photo Library
Cobalt chloride paper with drop of water
Cobalt chloride (CoCl2) paper with a drop of water. Cobalt chloride paper is used to indicate the presence of water - changing from blue to pink in a hydration reaction. The blue form is cobalt chloride dihydrate, with two attached water molecules. The compound in the presence of water gains four extra water molecules to become the pink hexahydrate, with heating reversing the reaction
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6294207
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Analysing Humidity Hydration Paper Pipette Test Testing Dihydrate Laboratory
EDITORS COMMENTS
This print from Science Photo Library showcases the fascinating properties of cobalt chloride paper. The image features a drop of water delicately placed on the paper, causing a remarkable transformation. Cobalt chloride paper is renowned for its ability to indicate the presence of water through a hydration reaction, as demonstrated by the striking color change from blue to pink. The blue hue represents cobalt chloride dihydrate, where two water molecules are attached to the compound. However, when exposed to additional moisture, such as in this case with a droplet of water, four extra water molecules bond with the compound and it transitions into its pink hexahydrate form. This intriguing phenomenon highlights how even seemingly subtle changes can have significant effects in chemistry. The laboratory setting depicted in this image emphasizes the scientific nature of this test and underscores its importance in various analytical processes. With pipettes and other equipment visible in the background, one can imagine scientists meticulously studying humidity levels or analyzing samples using cobalt chloride paper. Overall, this visually stunning photograph captures both the beauty and complexity inherent within chemical reactions. It serves as a reminder that science constantly uncovers new insights through meticulous observation and experimentation.
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