| 21. | Transformation between leuco and colored form of crystal violet lactone in response to varying acidity, which is caused by changing temperature
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| 22. | Such blocked leuco dyes are the leuco dye precursors that form the leuco dye by a slow, controlled chemical reaction.
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| 23. | Such blocked leuco dyes are the leuco dye precursors that form the leuco dye by a slow, controlled chemical reaction.
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| 24. | Such blocked leuco dyes are the leuco dye precursors that form the leuco dye by a slow, controlled chemical reaction.
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| 25. | Four different types of imaging chemicals are used in thermally sensitive papers : leuco dyes, developers, sensitizers and stabilizers.
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| 26. | She died at age 47 from hyperacute haemorrhagic leuco-encephalitis ( not an aneurysm, as is commonly written ).
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| 27. | It is also the leuco dye component in some thermochromic dyes, e . g . in the Hypercolor line of clothing.
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| 28. | The Arevaci assembled at the town of Numantia which had strong natural defences, and chose Ambo and Leuco as their leaders.
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| 29. | Leuco dyes, in general, provide little color when melted unless they are melted in conjunction with one or more organic acids.
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| 30. | The process, called leuco-depletion, was a precautionary move because white blood cells were seen as a theoretical source of infection.
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