Vitamin B2 powder


    AppearanceOrange yellow crystalline powder


    (on dried basis)
    98 to 102% (USP)
    97 to 103% (EP/BP)
    Particle size100% passes through 80 mesh sieve
    Acidity or Alkalinity Check the colour of the test solution after adding the respective solutions
    Heavy metalsMax 10 ppm
    Loss on dryingMax 1.5 %
    Residual solventsMethod IV <467> (USP)
    Absorbance0.31-0.33 A373nm/A267nm
    0.36-0.39 A444nm/A267nm
    Specific Rotation-115° and 135°
    LumiflavinAbsorbance of the filtrate at 440nm does not exceed 0.025 (USP); not more intense than BY6 (EP/BP)
    Residue on ignitionMax 0.3% (USP)
    Max 0.1% (EP/BP)
    Shelf life3 years

    Direct Food Ingredients will ensure that any material supplied this specification will confirm to the above physical and chemical properties. However, we have no control over the use of the material and can accept no responsibility for problems caused by the customer's failure to ensure the material supplied is suitable for the intended use.

    This specification has been last modified on Mon 10 September 2012 (1273)

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