Mar 30, 2016 · Manufacturers are permitted to call low-lead or "lead-free" glass "crystal glass" or "crystalline glass". That seems a gross deception in the case that drew my attention, but in glass with …

Jan 8, 2025 · 0 In my work with inorganic crystal structures I often use what is called a .cif file to describe the unit cell parameters, atomic packing, and bonding in a crystalline solid. There are lots of …

Jul 20, 2019 · I would like to identify if a wine glass is made of lead crystal (a destructive method is allowed). Lead crystal is said to be eroded by dishwasher detergent. I don't have a dishwasher, what …

Dec 20, 2014 · Glass is clear since the sand it is made from has chemicals added to lower the melting point and to make it transparent (by removing some impurities). Sand is composed of everything in …

Jun 27, 2016 · I have been informed that glass is a super-cooled liquid and is also considered to be an amorphous solid. Can it be both and, if not, what category does it fall into?

Jun 22, 2015 · While a glass is generally considered to be a supercooled, configurationally frozen liquid, not all amorphous solids are glasses. For example, amorphous silicon is a four-fold coordinated …

Jun 14, 2022 · The crystal nucleates and grows. The kinetics are slower, of course, but it happens just like it would in a melt. And, generally speaking, the quote from the textbook is, well, wrong - fused …

Dipole moment is thus cancelled. But we all know from the meniscus water makes with glass that the dipole-dipole/H-O attraction between sand and water is stronger than the hydrogen bond between …

Mar 18, 2022 · The DSC trace below was recorded for a thermotropic calamitic liquid crystal. The heating rate was 5 $^\text {o}$ C min $^ {-1}$; a heating scan is followed by a cooling scan.

Oct 4, 2023 · I am curious whether it is possible or not to make any solution of a specific compound into a crystal lattice or into an amorphous solid? I know that crystals form under specific conditions but …