Vitamin B1 Thiamine HCL Powder

    DESCRIPTION

    AppearanceBP2011, EP7: White or almost white, crystalline powder or colourless crystals
    USP34: White crystals or crystalline powder
    FCC VII: Small, white to yellow-white crystals or crystalline powder
    Appearance of solutionClear, not more intense than Y7 or GY7
    Irradiation StatusNo

    SPECIFICATIONS

    AssayBP2011, EP7: 98.5 to 101%
    USP34, FCC VII: 98 to 102%
    Colour
    (of Solution)
    A solution of sample exhibits no more colour than does a solution of potassium dichromate
    Absorbance of solutionMax 0.025
    WaterBP2011, EP7: Max 5%
    USP34, FCC VII: Max 5%
    Chloride (Cl)Reaction a of chlorides, BP2011, EP7: A white curdy precipitate is formed with silver nitrate, the precipitate is insoluble in nitric acid but dissolves readily in ammonia
    USP34, FCC VII: A white curdy precipitate is formed with silver nitrate, the precipitate is insoluble in nitric acid but dissolves readily in ammonia
    Nitrate
    (Limit of)
    No brown ring is produced at the junction of the two layers
    pHBP2011, EP7: 2.7 to 3.3
    USP34, FCC VII: 2.7 to 3.4
    Heavy metalsMax 0.002%
    CadmiumMax 1 mg/kg
    Sulphated ashMax 0.1 %
    Related SubstancesAny impurity: Max 0.4%
    Total impurities: Max 1%
    ArsenicMax 1 mg/kg
    Chromatographic purityMax 1 %
    LeadFCC VII: Max 2mg/kg
    AAS, in-house: Max 2mg/kg
    Residue on ignitionMax 0.2 %
    MethanolMax 0.3 %
    Infrared AbsorptionBP2011, EP7: Consistent with the IR spectra of thiamine hydrochloride CRS
    USP34, FCC VII: Consistent with the reference IR spectra
    EthanolMax 0.5 %
    MercuryMax 0.1 mg/kg
    SulphateMax 0.03 %
    Packaging25kg per carton
    Shelf life3 years

    MICROBIOLOGICAL

    Total plate countMax 100 cfu/g
    YeastsMax 10 cfu/g
    MouldsMax 10 cfu/g
    Staphylococcus aureusNegative
    SalmonellaNegative
    Escherichia ColiNegative


    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 Wed 15 August 2012 (1232)

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