Credit: RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA/SCIENCE PHOTO LIBRARY

Caption: Demonstration of the physical properties of heavy water ice compared to normal water ice. The heavy water ice is added to a beaker of normal water, and sinks to the bottom. Normal water ice floats in normal water. Heavy water is water in which the hydrogen atoms are replaced by atoms of the isotope deuterium, which contains one neutron as well as a proton in its nucleus. This gives it twice the mass of a normal hydrogen atom, and means the molecular mass of heavy water is around 20, rather than 18, atomic mass units. The crystal structure of the ice is almost identical in both types, but the extra mass in the heavy water ensures that the ice is slightly denser than normal liquid water.

Release details: Model release not required. Property release not required.

Keywords: beaker, buoyancy, chemicals, chemistry, comparing, comparison, cube, cubes, d2o, demonstrating, demonstration, dense, denser, density, deuterated, deuterium, different, differing, education, educational, example, experiment, floating, floats, frozen, glassware, h2o, heavy water, ice, ices, isotope, isotopes, lab, laboratory, normal, physical, physics, sinking, sinks, water

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.

Heavy water and normal ice

K004/7601 Rights Managed

Downloadable master

Duration: 00:00:36

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 302.9M

Original

Capture format: Sony FS700

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

Save watermarked comp

Request un-watermarked file

Price clip Pricing

Please login to use the price calculator