外观Appearance                                         白色结晶粉末或无色结晶
红外光谱鉴别Infrared spectrometry       和对照品匹配
熔点Melting point                                       168°C - 172°C
纯度Purity                                                  >99% (中和滴定)
水溶性实验Solubility in Water                溶液透明
干燥损失Loss on drying                        <0.5 % (1 g, 105°C)
重金属Heavy metals (as Pb)               <10 ppm
硫酸盐灰分Sulfated ash                        <0.1 %
比旋光度Specific rotation [a]20/D       +12° - +13° (c=20, H2O)
痕量分析Trace analysis:
Cl                                     < 100 ppm
SO4                                    < 150 ppm
Ca                                     < 200 ppm
比旋光度Specific rotation [a]20/D       +12.0 - +13.0 deg(C=20, H2O)(干燥后)


项目                                    ACS级    
                                        (ACS)
外观Appearance                          白色结晶
红外光谱鉴别Infrared spectrometry       和对照品匹配  
纯度Purity                              >99.0%
重金属Heavy metals (as Pb)              <5 ppm
灼烧残渣Res. after ignition             <0.02 %
痕量分析Trace analysis :
   Cl                                   < 10 ppm
   PO4                                  < 10 ppm
   Fe                                   < 5 ppm
不溶性物质Insoluble matter              <0.005 %
草酸盐试验Oxalate(C2O4) (限值 0.1%)     合格
硫酸根Sulfur compounds (as SO4)         <0.002 %

品级Grade                               FCC
                                        FG
外观Appearance                          白色结晶粉末
熔点Melt Point                          ≤173.0 °C
纯度Purity                              99.7 - 100.5 % （中和滴定）
红外光谱鉴别Infrared spectrometry       符合
比旋光度Specific rotation [a]20/D       12.0 - 13.0 °(C=20%,H2O)
干燥损失Loss on Drying                  ≤0.5 %
灼烧残渣Residue on ignition (Ash)       ≤0.05 %
Oxylate test                            Pass
Sulfate Test                            Pass
痕量分析Trace Metal analysis (as lead) ≤2 ppm
浊度试验Solubility (Turbidity) C=5%H2O 透明
砷Arsenic (As)                         ≤3 ppm
镉Cadmium (Cd)                         ≤1 ppm
汞Mercury (Hg)                         ≤1 ppm
铅Lead (Pb)                            ≤10 ppm


品级Grade                              药用级
                                   (Ph. Eur., BP, USP)
外观Appearance                         白色粉末
红外光谱鉴别Infrared spectrometry      和对照匹配
纯度Purity (以干基计）                 99.7-100.5%
比旋光度Specific rotation [a]20/D      +12.0 to +12.8°, c = 20% in H2O
有机挥发性杂质organic volatile impurities, complies (GC)
残留溶剂residual solvents,             complies
重金属heavy metals (as Pb)             ≤0.001%
灼烧残渣ign. residue                   ≤0.05% (as SO4)
干燥损失loss on drying, 105 °C        ≤0.2%
氯chloride (Cl-):                      ≤100 ppm
草酸盐oxalate (C2O42-):                in accordance
草酸oxalate (as oxalic acid):          ≤100 ppm
硫酸盐sulfate (SO42-):                 ≤100 ppm
砷As:                                  ≤2  ppm
钙Ca:                                  ≤200  ppm
铜Cu:                                  ≤10  ppm
汞Hg:                                  ≤1  ppm
铅Pb:                                  ≤2  ppm
锌Zn:                                  ≤10  ppm
水溶解试验solubility in water          合格

危险品标志  Xi
危险类别码  36/37/38
安全说明  26-36-37/39
海关编码  29181200
WGK Germany  3
RTECS号 WW7875000

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