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| CAS号 : | 77-98-5 |
精确质量 : | 147.16200 |
| 分子式 : | C8H21NO |
logP : | 1.70600 |
| 分子量 : | 147.25800 |
PSA : | 23.06000 |
四乙基氢氧化铵 | |
Tetraethylammonium hydroxide | |
77-98-5 | |
C8H21NO | |
147.25800 | |
23.06000 | |
1.70600 | |
147.16200 |
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n20/D 1.422
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无色液体
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库房通风低温干燥,与酸类分开存放
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11 °C
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110 °C
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-98ºC
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SOLUBLE
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1.023 g/mL at 25 °C
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Stable, but absorbs carbon dioxide from the air
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GHS02, GHS05, GHS06, GHS08 | |
危险 | |
H225; H301; H311; H314; H331; H370 | |
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KH3150000
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8
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3
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S7-S16-S26-S36/37/39-S45-S61
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II
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UN 3286 3/PG 2
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2923900090
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F
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R11; R23/24/25; R34; R39/23/24/25; R51
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HS:2923900090.Other quaternary ammonium salts and hydroxides |
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品名, 成分含量, 用途 |
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2923900090 其他季铵盐及季铵碱。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0% |
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2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
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HS:2923900090.Other quaternary ammonium salts and hydroxides. General tariff:6.5% |
1.先用甲醇溶解四乙基氯化铵,然后加入理论量的氢氧化钾-甲醇溶液,充分混匀,即有氯化钾析出: 当反应完全后, 静置, 减压过滤, 所得滤液加入水进行减压蒸馏, 除去醇和水, 使溶液中四乙基氢氧化铵含量达44%, 再于真空下干燥, 所得结晶即为成品。 | |
1.用作化学试剂和核苷的乙酰化等。 |
