In chemistry, a "'stock solution "'is a large volume of a common reagent, such as hydrochloric acid or sodium hydroxide, at a standardized concentration.
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:: : Not difficult if the scientists were more pictorial, but here and searching " synthetic spider silk stock ", gives terminology of " stock " and " stock solution ".
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Is there some sort of assay you could perform ( spectrophotometric, etc . ) on the stock solution to determine its concentration to an acceptable precision ? talk ) 17 : 12, 28 November 2007 ( UTC)
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A lot can be accomplished with just minor variations on stock solutions for basic data structures and algorithms, and this guy would just burn through those . talk ) 14 : 43, 11 October 2011 ( UTC)
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It is rapidly degraded in water and stock solutions are usually made up in anhydrous ethanol, isopropanol, corn oil, or DMSO . Proteolytic inhibition occurs when a concentration between 0.1-1 mM PMSF is used.
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The precipitate is then dissolved in a mixture of methanol and glycerol to form a stock solution; this is diluted with water or an aqueous buffer to form a'working'solution that is used in the staining of pathology specimens.
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:: : Strange that there would be impurities in a stock solution of HCl and distilled water, but my teacher had to make the AgCl from the reaction of AgNO 3 and NaCl, or some similar mixture, so it is possible . ` & 20 : 57, 13 June 2006 ( UTC)
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I use the concentration-volume formula, with the product of [ OH-] concentration with the total volume 0.1976 L divided by the NaOH titrant volume, to find that the stock solution of NaOH has a concentration of 4.48 x 10-3 M, which is quite low.
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Gum Senegal, gum arabic or modified guar gum thickening yield clearer and more even tints than does starch, suitable for lighter colours but less suited for very dark colours . ( The gums apparently prevent the colours from combining fully with the fibers . ) A printing stock solution is mostly a combination of modified starch and gum stock solutions.
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Gum Senegal, gum arabic or modified guar gum thickening yield clearer and more even tints than does starch, suitable for lighter colours but less suited for very dark colours . ( The gums apparently prevent the colours from combining fully with the fibers . ) A printing stock solution is mostly a combination of modified starch and gum stock solutions.
