Word: reagents
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...hours and is strengthened by the disodium salt of EDTA, a substance that aids in the removal of calcium compounds; on the Sistine frescoes it is used in a weak solution, in varying applications lasting at most three minutes. It is an efficient solvent but a bland reagent. The fear that the cleaning has taken off any of Michelangelo's a secco passages seems unfounded. According to Colalucci, these retouchings on dry plaster by his hand have all been identified. In restoration, each is isolated by a waterproof acrylic resin; the surrounding area is cleaned with AB-57; then...
...Consistent with the general practice among academic scientists, these cells are a reagent that will be shared,” he said at the time. “We hope that sharing these cells will quicken the pace of discovery...
...Consistent with the general practice among academic scientists, these cells are a reagent that will be shared,” he wrote. “We hope that sharing these cells will quicken the pace of discovery...
...show a change in the coal's performance," says Headwaters spokesman John Ward, whose company's processes are in use in 20 synfuel operations in nine states. "For the tax credit, you just need to show there has been a substantial chemical change." Ward said that Headwaters' latex reagents produce a "chemical change that is verified by a number of different laboratory tests." Ward said that "tests show that not only are the molecules different but that the coal also behaves differently. Coal products treated with our reagent show an increased level of combustion efficiency, which translates into reduced environmental...
PHENOLPHTHALEIN Now mostly used as a reagent in labs, this chemical was common in over-the-counter laxatives--until products with phenolphthalein were pulled from the shelves. Check the ingredients of packages that have been sitting around in your medicine cabinet for a time...