For faster navigation, this Iframe is preloading the Wikiwand page for 山梨酸钾.

山梨酸钾

山梨酸钾[1][2]
IUPAC名
Potassium (2E,4E)-hexa-2,4-dienoate
(2E,4E)-2,4-己二烯酸钾
别名 E202
BB粉
识别
CAS号 24634-61-5  checkY
590-00-1
PubChem 23676745
ChemSpider 4445644
SMILES
 
  • [K+].[O-]C(=O)\C=C\C=C\C
InChI
 
  • 1/C6H8O2.K/c1-2-3-4-5-6(7)8;/h2-5H,1H3,(H,7,8);/q;+1/p-1/b3-2+,5-4+;
InChIKey CHHHXKFHOYLYRE-ZCSOUONQBI
ChEBI 77868
KEGG D02411
性质
化学式 C6H7KO2
摩尔质量 150.22 g·mol−1
外观 白色晶體
密度 1.363 g/cm3
熔点 270 °C(543 K)
溶解性 58.5 g/100 mL (100 °C)
溶解性(其他溶劑)
危险性
欧盟危险性符号
刺激性刺激性 Xi
NFPA 704
1
2
0
 
致死量或浓度:
LD50中位剂量
4920 mg/kg(大鼠,口服)[3]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

山梨酸钾山梨酸盐,化学式為C6H7O2K。主要用作防腐剂E編號為E202。山梨酸及其鹽在莓类水果中自然产生,但工业上一般是由化工合成。

生產

[编辑]

山梨酸鉀由山梨酸氢氧化钾中和得到。前體山梨酸由丁烯醛丙二醛缩合生產。[4][5][6]

用途

[编辑]

主要食品防腐剂,也可用于化妆品防腐和饲料防霉等。与山梨酸一样,也属于酸性防腐剂,使用时需注意。有很强的抑制腐败菌和霉菌作用,又易溶于水和毒性极低而获得广泛应用。

抑制微生物尤其是霉菌细胞内脱氢酶的活性,破坏酶系统达到抑菌的目的。

参见

[编辑]

参考资料

[编辑]
  1. ^ Merck Index, 11th Edition, 7661.
  2. ^ 来源:Sigma-Aldrich Co., product no. 85520 .
  3. ^ Sax's Dangerous Properties of Industrial Materials. Wiley. 2004-10-15: 3043. ISBN 978-0-471-47662-7. doi:10.1002/0471701343. 
  4. ^ Erich Lück, Martin Jager and Nico Raczek "Sorbic Acid" in Ullmann's Encyclopedia of Industrial Chemistry, 2011, Wiley-VCH, Weinheim. doi:10.1002/14356007.a24_507.pub2
  5. ^ patent process for commercial potassium sorbate 互联网档案馆存檔,存档日期2012-01-31.
  6. ^ Agricultural Marketing Service. www.ams.usda.gov. [2022-12-28]. (原始内容存档于2014-06-11). 
{{bottomLinkPreText}} {{bottomLinkText}}
山梨酸钾
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?