Edinburgh Student Microscope (circa 1934)


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Calcium Chloride Movies

Calcium Chloride Video No. 1 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 7.2 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.01 MB).

Calcium Chloride Video No. 2 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 7.7 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (3.29 MB).

Calcium Chloride Video No. 3 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 10.0 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.21 MB).

Calcium Chloride Video No. 4 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 12.0 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.97 MB).

Calcium Chloride Video No. 5 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 5.3 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (2.22 MB).

Calcium Chloride Video No. 6 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 9.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.07 MB).

Calcium Chloride Video No. 7 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 10.7 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.47 MB).

Calcium Chloride Video No. 8 - Calcium chloride dissolution is observed under polarized light illumination at a magnification of 20x in this video. Playing time is 5.4 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (2.28 MB).

Calcium chloride is a colorless or white solid that is produced as a by-product of the manufacture of sodium carbonate or from reactions between hydrochloric acid and calcium carbonate. The anhydrous compound is commonly used as a drying agent, absorbing water until it dissolves into a liquid. This characteristic makes it effective in settling road dust. When spread in the form of a powder or flakes, it absorbs more than its own weight of water, forming a liquid that keeps the road wet. It also is used as a food preservative, treating aquarium water, and for de-icing roads.

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