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zhangbaobao鐵桿木蟲 (職業(yè)作家)
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[求助]
硼鎢酸的合成 已有2人參與
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這是文獻中合成K5BW12O40的方法。Na2WO4 2H2O (2g, 6mmol) was first dissolved in 20 mL of distilled water with stirring and the insoluble material was removed by filtration. And then, H3BO3 (0.1 g, 1.6 mmol) was added with vigorously stirring, the mixture was adjusted to pH = 6 with 6M HCl and boiled for 6 h (water was added from time to time). After that, the insoluble material Na10W12O41 XH2O was filtered off and the filtrate was acidified by aqueous 6M HCl to pH 2 and allowed to boil for 1/2 h, and precipitation was effected by 0.4 g of solid KCl. After filtration and washing with Et2O, 1.42 g of crude product was obtained and recrystallized in 10 mL of water at 60 C (yield 1.14 g). 怎么樣有K5BW12O40 合成H5BW12O40。謝謝。 |
木蟲 (小有名氣)
多酸化學(xué)
| 先合成鉀鹽,鉀鹽的合成比較簡單,見圖,據(jù)說得到的鉀鹽做離子交換可以得到酸,我沒具體做過,不太清楚,可以問問其他人 |

鐵桿木蟲 (職業(yè)作家)
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