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| CAS号 : | 82-75-7 |
精确质量 : | 223.03000 |
| 分子式 : | C10H9NO3S |
logP : | 3.33070 |
| 分子量 : | 223.24800 |
PSA : | 88.77000 |
8-氨基萘磺酸 | |
8-Amino-1-Naphthalenesulfonic Acid | |
82-75-7 | |
C10H9NO3S | |
223.24800 | |
88.77000 | |
3.33070 | |
223.03000 |
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1.5072 (14ºC)
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灰色至微红的潮湿的粉末
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>350°C
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1.0432 g/cm3 (20ºC)
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Stable under normal temperatures and pressures.
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Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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8
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S26-S27-S36-S45
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III
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UN 3261
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C
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R34
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2921450090
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品名, 成分含量, 用途 |
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2921450090. 1-萘胺和2-萘胺的衍生物及盐(包括1-萘胺）. 增值税率:17.0%. 退税率:9.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:30.0% |
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2921450090 1-naphthylamine (α-naphthylamine), 2-naphthylamine (β-naphthylamine) and their derivatives; salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
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2921450090. 1-Naphthylamine (α-naphthylamine), 2-naphthylamine (β-naphthylamine) and their derivatives; salts thereof |
主要采用经萘法。以经萘为原料,用硫酸低温磺化,硝酸硝化,碳酸镁中和,铁粉还原,再经酸析、过滤而得。在生产克列夫酸过程中,得到混合的氨基萘磺酸镁盐,其中也含有1,8-氨基萘磺酸镁盐。这三种异构体镁盐在不同温度下有着不同的溶解度,操作时,先将混合液(还原液)浓缩到一定浓度,降温到30-32℃,先析出1,6-氨基萘磺酸镁盐(过滤后酸析得到1,6-克列夫酸);滤液加硫酸进行部分酸化,在40-45℃搅拌12h,过滤得到的就是1-萘胺-8-磺酸。滤液再继续酸析即得1,7-克列夫酸。 | |
用于制造偶氮染料。 |
