99%
外觀Appearance 白色至淡黃色結晶粉末
紅外光譜鑒別Infrared spectrometry 符合
純度Purity ≥99.0% (HPLC)
熔點Melting point 42°C - 47°C
水溶解試驗Solubility in Water 溶液透明
超純級,99.5%:
外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry 符合
純度Purity ≥99.5% (HPLC)
不溶物insoluble matter, passes filter test
灼燒殘渣ign. residue ≤0.05%
熔點Melting point 43°C - 48°C
水溶性solubility methanol: soluble1 M at 20 °C, clear, colorless
anion traces by ICP Atomic emission
氯chloride (Cl-): ≤50 ppm
硫酸根sulfate (SO42-): ≤100 ppm
cation traces by by ICP Atomic emission
Al: ≤5 ppm
Ba: ≤5 ppm
Bi: ≤5 ppm
Ca: ≤10 ppm
Cd: ≤5 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
K: ≤50 ppm
Li: ≤5 ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Mo: ≤5 ppm
Na: ≤50 ppm
Ni: ≤5 ppm
Pb: ≤5 ppm
Sr: ≤5 ppm
Zn: ≤5 ppm
abs. absorption1M/382 nm, methanol cut-off
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