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| CAS号 : | 93-97-0 |
精确质量 : | 226.06300 |
| 分子式 : | C14H10O3 |
logP : | 2.68380 |
| 分子量 : | 226.22700 |
PSA : | 43.37000 |
苯甲酸酐 | |
benzoic anhydride | |
93-97-0 | |
C14H10O3 | |
226.22700 | |
43.37000 | |
2.68380 | |
226.06300 |
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1.57665 (20ºC)
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白色至灰白色片
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>230 °F
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360 °C
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38-42 °C(lit.)
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0.01 g/L
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1.199 g/mL at 25 °C(lit.)
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Stable at room temperature in closed containers under normal storage and handling conditions.
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Store at RT.
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5.1
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3
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S26-S39-S37/39
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I; II; III
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4002191900
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Xi
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R36/37/38
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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>由苯甲酸与乙酐反应而得。将苯甲酸、乙酐和糖浆状磷酸一起蒸馏反应,温度不超过120℃,蒸出一定量馏分时,向反应混合物补加乙酐,重复此操作。然后蒸出馏分直至反应物温度达到270℃。将蒸馏剩余物减压分馏,在2.53-2.67kPa压力下,收集210-220℃的馏分即为苯甲酸酐粗品,重结晶得成品。</p> | |
<p>测定有机液体中的水分。有机合成。苯酰化剂。制药、染料中间体。防腐剂。软化剂。</p> |