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11 videos found

Chemistry 9.3 Hydrates

A lesson on hydrated compounds. Efflorescent vs Hygroscopic substances are discussed as well as deliquescent substances.

Deliquescent Drying Technology

Lisa Mauer

Lisa Mauer, an Associate Professor of Food Science at Purdue University, explains deliquescence, a phase transformation in which humidity causes certain subs...

SchoolFreeware Science Video 12 - Make Gummy Bears Bigger - Hygroscopic Substance

The items needed are gummy bears and cups of water. Two types of gummy bears are used. The bears are placed in the cups of water. Gummy bears are a hygroscop...

How to make a Desiccator Bag for Drying Chemicals

In this video we make a desiccator bag for thoroughly drying hygroscopic chemicals. Some chemicals are hygroscopic, meaning they absorb water from the air an...

hygroscopic salt demonstration

Salt absorbs water from the air. In this demo, a 0.2" salt crystal is held just above the surface of a cucumber, and over the course of six hours, adsorbs en...

Hygroscopicity Measurement Apparaturs, better quality

Hygroscopicity Measurement Apparaturs - device that our company provides. http://www.walttielectronics.com/eng/HMA_eng.html, better quality.

How to Make Glow Powder with Household Chemicals

Jeri shows how to make ZnS:CU glow powder at home with household chemicals. Reaction 1: Flowers of sulfur(sublimated sulfur) + Zn + Cu(penny from 1982 or new...

Hygroscopic Morphology

Hygroscopic behavior of 1mm thick pieces of linden wood video 5x times sped-up Study on hygroscopic morphology, IaaC university, Barcelona, 2013.

chemical reaction, how to make a chemical "fog"

H2O2 à 20 volumes et poudre de permanganate de potassium. This reaction is an oxydation of H2O2 by MnO4- AND a dismutation of H2O2 because of the heat... Thi...

11 videos found

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