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Lead - DrugFuture- https www drugfuture com chemdata 20type detergents کد ورود به سیستم ,One of the metals known to the ancient world. Extent of occurrence in earth's crust about 15 g/ton, also expressed as 0.002% (depth of crust: 16 km). Occurs chiefly as sulfide in galena, other minerals include anglesite (PbSO4), cerussite (PbCO3), mimetite [PbCl2.3Pb3(AsO4)2] and pyromorphite [PbCl2.3Pb3(PO4)2]odamine - DrugFutureProperties: Large, six-sided prisms from ether, mp 127°. Very sol in alcohol, chloroform. Somewhat sol in boiling water. In soln codamine reacts strongly basic. The salts are bitter in taste, whereas the base is said to be tasteless.
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Pharmacology Cheat Sheets. WARNING: These cheat sheets may provide general information about health and related subjects. The information and other content provided here, or in any linked materials, are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.
Properties: Crystals form ethyl acetate/n-hexane, mp 85-90°.[a] D20-15.6° (c = 2 in methanol).Also reported as crystalline powder, mp 105-108° (Nishiyama, 1992). Slightly sol in water, readily sol in ethanol. LD 50 in male, rats (mg/kg): 1000-1400, ~1000 s.; in rats, dogs (mg/kg): _>2000 orally (Nishiyama, 1992).
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Occurs naturally and in the free state in fruits and other parts of plants. Combined in glucosides, in di- and oligosaccharides, in the polysaccharides cellulose and starch, and in glycogen. Normal human blood contains 0.08-0.1%. Manuf on a large scale from starch: Dean, Gottfried, Adv. Carbohydr. Chem. 5, …
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