item | standard | analysis data |
appearance | white to off-white powder | conforms |
specific rotation[α]20/d (c=1 inh2o) | +38°+2° | 38.1° |
state of solution (transmittance) | notless than 98.0% | 98.5% |
chloride (cl) | not more than 0.020% | 0.008% |
sulfate(so4) | not more than 0.020% | 0.005% |
ammonium (nh4) | not more than 0.020% | <0.02% |
heavy metal(pb) | not more than 10ppm | <10ppm |
loss on drying | not more than 0.20% | 0.18% |
residue onignition(sulfated) | not more than 0.10% | 0.06% |
assay | notless than 99% | 99.2% |
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