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| CAS号 : | 14221-06-8 |
精确质量 : | 431.86400 |
| 分子式 : | C8H12Mo2O8 |
logP : | 0.05520 |
| 分子量 : | 428.09600 |
PSA : | 105.20000 |
乙酸钼(II)二聚体 | |
molybdenum(2+),tetraacetate | |
14221-06-8 | |
C8H12Mo2O8 | |
428.09600 | |
105.20000 | |
0.05520 | |
431.86400 |
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黄色针状
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13.9mmHg at 25°C
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117.1ºC at 760 mmHg
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2915900090
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S24/25
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品名, 成分含量, 用途 |
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A.入境货物通关单 B.出境货物通关单 |
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R.进口食品卫生监督检验 S.出口食品卫生监督检验 M.进口商品检验 N.出口商品检验 |
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2915900090. 其他饱和无环一元羧酸及其酸酐(酰卤、过氧)化物、过氧酸及其卤化、硝化、磺化、亚硝化衍生物. 增值税率:17.0%. 退税率:9.0%. 监管条件:AB(入境货物通关单,出境货物通关单). 最惠国关税:5.5%. 普通关税:30.0% |
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2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0% |
以六羰基钼与醋酸在氯气流中反应即可制得二聚醋酸钼,六羰基钼置于约100mL冰醋酸和10mL醋酸酐的混合液中,在氮气流中于140~150℃加热,冷却溶液,在空气中滤集晶体,用乙醇和乙醚洗涤晶体,在真空干燥器中干燥,得1.5g二聚醋酸钼,产率92%。 |