| 详细说明 |
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| 品牌：同晟 | 产地：本地 | | 价格：1人民币/公斤 | 规格：完善 | 简要说明： 同晟牌的L-茶氨酸3081-61-6产品：估价：1，规格：完善，产品系列编号：齐全 | |  | | | 详细介绍：
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Item
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Standard
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Analysis data
|
|
Appearance
|
White crystalline powder
|
Conforms
|
|
Solubility (1.0g/20ml H2O)
|
Clear Colorless
|
Conforms
|
|
Specific rotation(a)D20
(C=1 , H2O)
|
+7.5º to +8.5º
|
+8.0º
|
|
Assay
|
98.0-102.0%
|
99.2%
|
|
Melting Point (ºC)
|
200ºC to 210 ºC
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Conforms
|
|
Chloride(C1)
|
Not more than 0.02%
|
0.012%
|
|
Iron(Fe)
|
Not more than 10ppm
|
8ppm
|
|
Heavy metals(Pb)
|
Not more than 10ppm
|
5ppm
|
|
Arsenic(As2O3)
|
Not more than 4ppm
|
<4ppm
|
|
Moisture
|
Not more than 1.0%
|
0.71%
|
|
Residue on ignition
|
Not more than 0.2%
|
0.07%
|
|
PH
|
5.0-6.0
|
5.4
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