Color Changing UV Beads (Approx 240)

Color Changing UV Beads (Approx 240) - Avogadro's Lab Supply
Color Changing UV Beads (Approx 240)
Color Changing UV Beads (Approx 240) - Avogadro's Lab Supply
Color Changing UV Beads (Approx 240)

American Scientific

$6.95 
SKU: ASB100

Expose them to sunlight and they immediately change from clear to colored. Cover them up and within minutes they are clear again.
The UV Beads contain photochromic pigments that react to ultraviolet light by changing the bonds within the molecule. The beads are white in visible light. In UV light they appear colored, depending on the pigment added.

Supplied approximately 240 /bag

Specifications:
Reactive wavelength 300 to 360 nm
Diameter 8.8 mm
Height 6.3 mm
Inside Diameter 3.8 mm