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    Guanidine carbonate

    Structural formula:[HN=C(NH2)2]2•H2CO3

    Molecular formula:C2N6H10•H2CO3

    Molecular weight:180.2

    Standard:Industry-grade standard and officinal-grade standard?

    Item Technical index
    Industry grade Officinal grade
    Appearance white crystal white powder
    Assay≥ 99% 99.5%
    Water solubility of 20% solution colorless transparent colorless transparent
    Moisture≤ 0.2% 0.2%
    Ash content≤ 0.4% 0.05%
    PH value(4% 25°C) 11.4±0.4 11.4±0.4
    Heavy metal(pb) 10 PPM MAX 10 PPM MAX
     
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