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| CAS号 : | 105-11-3 |
精确质量 : | 138.04300 |
| 分子式 : | C6H6N2O2 |
logP : | 0.77280 |
| 分子量 : | 138.12400 |
PSA : | 65.18000 |
1,4-苯醌二肟 | |
1,4-Benzoquinone Dioxime | |
105-11-3 | |
C6H6N2O2 | |
138.12400 | |
65.18000 | |
0.77280 | |
138.04300 |
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1.594
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淡黄色至棕色晶体或粉末
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°C
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315ºC
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243 °C (dec.)(lit.)
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1,49 g/cm3
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0mmHg at 25°C
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Stable. Incompatible with strong acids, strong oxidizing agents.
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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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DK4900000
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3
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S45-S36/37
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2942000000
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Xn
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R22; R40
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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<p>先将30%的氢氧化钠溶液加入反应釜,在搅拌下缓缓将苯酚加入,使之溶于氢氧化钠溶液。降温至0℃再加入亚硝酸钠和30%的硫酸,使温度保持在7～8℃进行反应,逐渐有亚硝基酚结晶析出。搅拌1h后,静置过滤,结晶经水洗,得亚硝基酚。再经转位,与盐酸羟胺水溶液混合,加热至70℃进行肟化反应。反应完成后,过滤得对苯醌二肟。</p> | |
<p>为丁基胶、天然胶、丁苯胶等的硫化剂(特别适用于丁基胶)还可用作分析试剂等。</p> |
