corundum , an aluminum-oxide mineral al o . the pink/red colour is formed in corundum by adding the element chromium to its crystal structure. spectroscopy of rubies from the aappaluttoq occurrence in greenland confirm the presence of chromium as well as showing absorption in the uv region indicating...
occupational skin diseases occupational dermatoses vary both in their appearance (morphology) and severity. the effect of an occupational exposure may range from the slightest erythema (reddening) or discoloration of the skin to a far more complex change, as a malignancy. despite the wide range of substances...
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but the increase is much smaller than the increase associated with other diuretic classes. [ ] by contrast, loop diuretics promote a significant increase in calcium excretion. [ ] this can increase risk of reduced bone density. [ ] osmotic diuretics[ edit ] osmotic diuretics (e.g. mannitol ) are substances...
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acceptable daily intake (adi) is an estimate of the amount of a substance in food or drinking water that can be consumed daily over a lifetime without presenting an appreciable risk to health. it is usually expressed as milligrams of the substance per kilogram of body weight and applies to chemical substances...
acceptable daily intake (adi) is an estimate of the amount of a substance in food or drinking water that can be consumed daily over a lifetime without presenting an appreciable risk to health. it is usually expressed as milligrams of the substance per kilogram of body weight and applies to chemical substances...
, also known as cochineal , where carminic acid from the dactylopius coccus insect is mixed with an aluminum salt to produce the dye; crimson , also known as kermes , extracted from the insect kermes vermilio; and lac , a scarlet resinous secretion of a number of species of insects. chemical- and mineral-based...