D-焦谷氨酸4042-36-8
更新时间：2016-10-20 17:46:46
价格：请来电询价
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详细介绍
|
Item |
Standard |
Analysis data |
|
Appearance |
White crystals |
Conforms |
|
Specific rotation[α]D/20 (C=2 in H2O) |
+10.8°to +12.3° |
+11.65° |
|
Melting Point (ºC) |
159 to 161 ºC |
160ºC |
|
Chloride(C1) |
Not more than 0.02% |
0.012% |
|
Sulfate(SO4) |
Not more than 0.02% |
0.01% |
|
Iron(Fe) |
Not more than 30ppm |
20ppm |
|
Heavy metals(Pb) |
Not more than 10ppm |
6ppm |
|
Arsenic(As2O3) |
Not more than 1ppm |
0.5ppm |
|
Loss on drying |
Not more than 0.50% |
0.19% |
|
Residue on ignition |
Not more than 0.10% |
0.07% |
|
Assay |
98.0%～101.0% |
99.0% |
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