tems
Specification
Result
Appearance
White crystalline powder
Assay(HPLC)
≥99.0%
99.7%
Melting point
140ºC±2
139.8ºC
Heavy metal
≤10ppm
<10ppm
Arsenic (AS2O2)
≤1ppm
<1ppm
Cadmium
Lead
Mercury
≤0.1ppm
Negative
Loss on drying
≤0.5%
0.1%
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