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用途
面包改良剂;营养增补剂、剂、护色剂。对丙稀晴和芳香族中毒有作用，有预防放射线损伤的作用，有治疗气管炎和化痰作用，有吸收酒精，将其在体内的乙醛的作用。
理化性质
L-半胱氨酸盐酸盐一水物
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外观 |
白色结晶或白色粉末状 |
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鉴定 |
用红外线吸收光谱仪器测定 |
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比旋光度 |
+5.5°- +7.0° |
+5.7°- +6.8° |
+5.5°- +7.0° |
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溶解状况 |
≥ 98.0% |
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≥ 98.0% |
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含氯量 |
19.89 – 20.29% |
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19.8 – 20.8% |
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* (NH4) |
≤ 0.02% |
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硫酸盐 (SO4) |
≤ 0.020% |
≤ 0.03% |
≤ 0.02% |
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铁盐 (Fe) |
≤ 10PPm |
≤ 30PPm |
≤ 10PPm |
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* (Pb) |
≤ 10PPm |
≤ 15PPm |
≤ 10PPm |
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砷盐 (As2O3) |
≤ 1PPm |
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≤ 1PPm |
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其它氨基酸 |
--- |
--- |
≤ 0.5% |
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干燥失重 |
8.5 - 12.0% |
8.0 - 12.0% |
8.0 - 12.0% |
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灼烧残渣 (sulfated) |
≤ 0.10% |
≤ 0.4% |
≤ 0.1% |
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含量 |
99.0-100.5% |
98.5-101.5% |
≥ 98.5% |
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酸碱度 |
1.5 - 2.0 |
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1.5 - 2.0 |
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挥发物 |
--- |
符合标准 |
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