For faster navigation, this Iframe is preloading the Wikiwand page for 硫酸二乙酯.

硫酸二乙酯

此条目需要补充更多来源。 (2024年1月3日)请协助补充多方面可靠来源改善这篇条目无法查证的内容可能会因为异议提出而被移除。致使用者:请搜索一下条目的标题(来源搜索:"硫酸二乙酯"网页新闻书籍学术图像),以检查网络上是否存在该主题的更多可靠来源(判定指引)。
硫酸二乙酯
别名 硫酸乙酯
识别
CAS号 64-67-5  checkY
PubChem 6163
ChemSpider 5931
SMILES
 
  • O=S(=O)(OCC)OCC
InChI
 
  • 1/C4H10O4S/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3
InChIKey DENRZWYUOJLTMF-UHFFFAOYAR
RTECS WS7875000
KEGG C14706
性质
化学式 C4H10O4S
摩尔质量 154.18 g·mol−1
外观 无色液体,有类似醚的气味[1]
密度 1.2 g/mL;1.17 g·cm−3 (25 °C) [2]
熔点 -24 °C(249 K)([3]
沸点 208 °C(481 K)(分解[3]
溶解性 0.7 g/100 mL,缓慢水解[2]
蒸气压 16 Pa (20 °C) [1]
危险性
警示术语 R:R45-R46-R20/21/22-R34
安全术语 S:S53-S45
欧盟分类 有毒 T
Carc. Cat. 2
Muta. Cat. 2
NFPA 704
1
3
1
 
闪点 104 °C
致死量或浓度:
LD50中位剂量
880 mg·kg−1 (大鼠经口) [3]
647 mg·kg−1 (小鼠经口) [4]
相关物质
相关化学品 硫酸二甲酯,二乙基亚硫酸酯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硫酸二乙酯硫酸与两分子乙醇形成的硫酸酯

性质

为无色油状液体,有薄荷香。不溶于水,溶于乙醚和乙醇。遇水缓慢分解,热水中剧烈分解为硫酸单乙酯。有毒。可能致癌。

制备

  1. 乙醇与硫酸反应而得。
  2. 乙醚与氯磺酸反应得到。
  3. 加热硫酸单乙酯或在脱水剂下蒸馏。
  4. 乙烯与硫酸反应。

用途

用作乙基化剂,用于制取酚、胺、硫醇的乙基衍生物。

参考资料

  1. ^ 1.0 1.1 Record of Diethylsulfat in the GESTIS Substance Database from the IFA英语Institute for Occupational Safety and Health
  2. ^ 2.0 2.1 Pradyot Patnaik: A comprehensive guide to the hazardous properties of chemical substances. 3. Auflage, Wiley-Interscience, 2007, ISBN 9780471714583, S. 869–870
  3. ^ 3.0 3.1 3.2 CID 6163 from PubChem
  4. ^ National Technical Information Service. Vol. PB214-270
{{bottomLinkPreText}} {{bottomLinkText}}
硫酸二乙酯
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?