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丙酸钙

丙酸钙[1]
IUPAC名
Calcium propanoate
识别
CAS号 4075-81-4  checkY
PubChem 19999
ChemSpider 18840
SMILES
 
  • CCC(=O)[O-].CCC(=O)[O-].[Ca+2]
InChI
 
  • 1/2C3H6O2.Ca/c2*1-2-3(4)5;/h2*2H2,1H3,(H,4,5);/q;;+2/p-2
InChIKey BCZXFFBUYPCTSJ-NUQVWONBAE
EINECS 223-795-8
性质
化学式 C6H10CaO4
摩尔质量 186.2192 g·mol⁻¹
外观 白色结晶固体
溶解性 49 g/100 mL (0 °C)
55.8 g/100 mL (100 °C)
溶解性 微溶于甲醇乙醇
不溶于丙酮
结构
晶体结构 单斜
危险性
NFPA 704
1
2
0
 
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

丙酸钙化学式Ca(C2H5COO)2,是丙酸的钙盐。

制备

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丙酸钙可直接由氧化钙合成:

生成的水会与过量的CaO生成氢氧化钙,过量的水于低压下(0.6〜0.95 bar),在70-90℃下蒸发。

a)
b)

应用

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丙酸是一种常用的食品防腐剂,添加至面包等烘焙食品,加工的肉类,乳清,和其他奶制品等。[2]农业上,丙酸钙添加到饲料中预防奶牛的乳热症英语Milk fever[3]丙酸钙与另一种防腐剂苯甲酸钠不同,其抑菌不需要酸性环境。[4]

丙酸钙作为烘焙食品的防腐剂,添加剂量通常在0.1-0.4%之间,[5] (饲料中可能更高,达到1%)。

参考资料

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  1. ^ Merck Index, 11th Edition, 1705.
  2. ^ Codex Alimentarius data for calcium propanoate. [2013-08-31]. (原始内容存档于2006-10-21). 
  3. ^ Center for Food and Nutrition Policy review of use of calcium propanoate as an organic agent in cow feed and as milk fever prevention (PDF). [2013-08-31]. (原始内容存档 (PDF)于2006-10-01). 
  4. ^ Ingredients -- Calcium propionate. [2007-03-10]. (原始内容存档于2007-02-20). 
  5. ^ 存档副本. [2010-02-28]. (原始内容存档于2010-04-12). 

外部链接

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丙酸钙
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