|
Description 外观性状 |
White to off-white crystalline powder 白色至类白色结晶体粉末 |
Complies 符合规定 |
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|
M.P. 熔点 |
℃ |
℃ |
|
|
PH |
5.5-7.5 |
5.8 |
|
|
Clarity 澄清度 |
Should be clear and colorless 应澄清无色 |
Complies 符合规定 |
|
|
Sulphate 硫酸盐 |
≤0.08% |
Complies 符合规定 |
|
|
Nitrite 亚硝酸盐 |
≤0.002% |
Complies 符合规定 |
|
|
Heavy metals 重金属 |
≤20ppm |
Complies 符合规定 |
|
|
Loss on drying 干燥失重 |
≤0.5% |
0.1% |
|
|
Residue on ignition 炽灼残渣 |
≤0.1% |
0.09% |
|
|
Related substances 有关物质 |
Individual impurity 其他单个杂质 |
≤0.15% |
0.008% |
|
Total impurities 其他杂质和 |
≤1.0% |
0.008% |
|
|
Assay 含量 |
以干品计算，含C12H11NO不低于98.5% |
100.2% |
|
|
Conclusion 结论 |
The product conforms to the specification. 本品符合企业标准 |
