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  • Whats the difference between povidone K29 32 and povidone K30?
    On the other hand, K30 has the ability to complexate with the active ingredient providing taste masking and solubilization The grade of povidone that is selected depends mainly on its molecular weight, as this dictates the viscosity, binding effect, the complexation capacity and how readily it is eliminated by the body
  • What is the difference between doxycycline HCl and doxycycline hyclate?
    hyclate because it is more concentrated than HCl Looking at on ChEBI it appears that a 1 mole, of "doxycycline hyclate" provides two moles of "doxycycline"1
  • Why is my Povidone-Iodine 10% Solution losing its color which . . .
    Povidone iodine is inactivated or becomes unstable in the presence of sodium thiosulphate, heat, light or alkaline pH Once opened – use immediately Discard immediately after first use Note the instability to light Do not store this open-topped or in a clear glass bottle You will need to make up your gargle solution fresh each time
  • extraction - Sublimation of Iodine from Iodine Povidone - Chemistry . . .
    Iodine povidone is a complex of iodine and the polymer povidone I am wondering if one were to heat it enough, the iodine would sublimate and could be collected Normally iodine boils at 184 3 °C, according to wikipedia
  • Extract iodine from tincture? - Chemistry Stack Exchange
    I don't have povidone-iodine, I don't have iodide tincture, and I don't have $\ce{KI}$ Well, there is $\ce{KI}$ in my tincture, but that is not my point My point is, there are procedures for extracting $\ce{I2}$ from povidone-iodine, there are procedures for converting iodide salts (in tincture or not) to elemental iodine, and there are those
  • How long can iodine bottle left open? Can it go bad sooner than . . .
    For povidone iodine, $\ce{C6H9I2NO}$, the vapor pressure is far lower, ~1 3 Pa at room temperature, so the rate of loss of iodine would be far slower Again, though the antiseptic will slowly lose potency, it does not "go bad" If the color looks noticeably lighter, I'd discard it to get a new bottle
  • aqueous solution - What is the net ionic equation of sodium hydroxide . . .
    Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
  • What do USP 26 and USP 42 mean? - Chemistry Stack Exchange
    For example, here is the USP monograph for povidone and there are numerous subscripted references to USPXX where XX is the revision number of the "harmonized" and not "national" text My guess is that you're being asked which USP version of the reference standard applies to your material $\endgroup$
  • inorganic chemistry - Oxidation of sodium thiosulfate by iodine . . .
    Whether compound $\ce{X}$ is going to be reduced oxidized and to what degree is mostly dictated by the corresponding redox potential for the given medium
  • How to prepare potassium cyanide from potassium ferrocyanide
    Until about 1900, potassium cyanide was produced by melting dry potassium carbonate with dry potassium hexacyanidoferrate(II): $$\ce{K4[Fe(CN)6] + K2CO3 -> 6KCN + FeO + CO2}$$ However, the product contains potassium cyanate, which is approximately formed as follows: $$\ce{K4[Fe(CN)6] + K2CO3 -> 5KCN + KOCN + Fe + CO2}$$





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