Rose-colored glasses

Rose-colored glasses may indeed make the world look rosier, whereas battery-powered wrist watches may have some unexpected and adverse effects, for example, on the wearer s memory, not to mention fluorescent lighting and its cyclic intensity that is, its fluttering with 60-cycle alternating current. For more on this offbeat subject, there is the work of John Ott about the physiological effects of light and radiation.)... 

This research shows that plants are very sensitive to the type of red light that bathes them. Our plants may benefit from rose-colored glasses as much as we do. 

Analytical Characters.—(1.) Behaves like Ba with alkaline carbonates and NaiHPO . (2.) Calcium sulfate a white ppt. which forms slowly accelerated by addition of alcohol. (3.) The Sr compounds color the Bunsen flame red, or, as observed through, blue glass, purple or rose color. The Sr flame gives a spectrum of manv bands, of which the most prominent are ii=6694, C6C4, 6059, 6031, 4607. 

Erbium has a limited use. It is, however, possible to exploit the fact that, like many lanthanides, the element has specific light absorption characteristics. Erbium oxide, itself rose pink, colors glass and glazing. This glass absorbs infrared radiation. 

Photoreduction of Eosin, Erythrosin, and Rose Bengal with amines has been employed for a number of years to initiate polymerization of monomers in the absence of solvent. Examples of recent applications include the production of volume holograms [181], color images on plain paper [182], printing plates [183-185], and, in the presence of suitable peroxides, manufacture of coatings for glass fibers [186]. 

F re 1.13. (A) Graphical representation of current interpretation for Metal-Enhanced Phosphorescence (MEP). (B) Experimental sample geometry. (C) Phosphorescence emission spectra and real-color photographs of Rose Bengal (RB) emission from glass and SIFs. 

Finally, small amounts of manganese compounds are used as coloring agents in bricks, textiles, paints, inks, glass, and ceramics. Manganese compounds can be found in shades of pink, rose, red, yellow, green, purple, and brown. 

Stock solution h 0.1% neutralized solution prepared by dissolving 100 mg. of indicator in 40 c.c. of alcohol, adding 1.9 c.c. of 0.1 N hydrochloric acid, and diluting to 100 c.c. with water. This solution has a weak violet color and is stored in Jena or Pyrex glass containers. The color change is from a weak rose to red-violet between pH s 5.6 and 8.0. The color equilibrium does not set in instantaneously, and it is necessary to wait two minutes after adding the indicator before judging its color. 

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