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Merck
CN

402907

Sigma-Aldrich

丙酸

ACS reagent, ≥99.5%

别名:

Propanoic acid, Propanyl acid, 初油酸

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About This Item

线性分子式:
CH3CH2COOH
CAS号:
分子量:
74.08
Beilstein:
506071
EC 号:
MDL编号:
UNSPSC代码:
12352100
eCl@ss:
39021305
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

质量水平

蒸汽密度

2.55 (vs air)

蒸汽压

2.4 mmHg ( 20 °C)

检测方案

≥99.5%

形式

liquid

自燃温度

955 °F

expl. lim.

12.1 %

分析物化学类别

amino acids

杂质

≤0.002% Carbonyl compounds
≤0.10% Readily oxidizable substances (as HCOOH)
≤0.15% water

蒸发残留物

≤0.01%

颜色

APHA: ≤20

折射率

n20/D 1.386 (lit.)

bp

141 °C (lit.)

mp

−24-−23 °C (lit.)

溶解性

H2O: soluble

密度

0.993 g/mL at 25 °C (lit.)

痕量阳离子

heavy metals (as Pb): ≤0.001%

SMILES字符串

CCC(O)=O

InChI

1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)

InChI key

XBDQKXXYIPTUBI-UHFFFAOYSA-N

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一般描述

丙酸(PA)也被叫做初油酸,是一种短链脂肪酸,主要用于食品防腐剂。它是未消化的食物在直肠中被微生物发酵产生的主要代谢末端产物之一。它可以用Propionibacterium acidipropionici甘油/葡萄糖共发酵来生产。晶体结构研究表明PA晶体是单斜晶体,有空间基团P21/c
丙酸(PA)是一种天然羧酸,它的天然状态是一种无色腐蚀液体,有难闻的气味。它易混合于水。工业上在羰基镍作为催化剂存在情况下,乙烯氢羧基化生成丙酸。PA被发现能够降低食物摄入,降低血浆和肝脏中的脂肪酸,提高组织胰岛素灵敏度,抑制免疫反应。丙酸是一种良好的原材料,它稳定,便宜,安全,可以用作食品添加剂。

应用

丙酸可以用来改变石灰石,提高它吸收CO2的能力。

警示用语:

Danger

危险声明

危险分类

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3

靶器官

Respiratory system

WGK

WGK 1

闪点(°F)

closed cup

闪点(°C)

closed cup

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

法规信息

危险化学品

Choose from one of the most recent versions:

分析证书(COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

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The crystal structure of propionic acid.
Strieter FJ, et al.
Acta Crystallographica, 15(12), 1233-1239 (1962)
Enhancement of CO2 capture capacity by modifying limestone with propionic acid.
Sun R, et al.
Powder Technology, 233, 8-14 (2013)
Derrick F MacFabe et al.
Behavioural brain research, 217(1), 47-54 (2010-10-13)
Recent evidence suggests that a variety of environmental factors, including dietary and gastrointestinal agents, may contribute to autism spectrum disorders (ASD). Here we administered propionic acid (PPA), a short chain fatty acid that is used as a food preservative and
Yin Liu et al.
Current microbiology, 62(1), 152-158 (2010-06-15)
Cosubstrates fermentation is such an effective strategy for increasing subject metabolic products that it could be available and studied in propionic acid production, using glycerol and glucose as carbon resources. The effects of glycerol, glucose, and their mixtures on the
Biological effects of propionic acid in humans; metabolism, potential applications and underlying mechanisms
Sa'ad, H., et al.
Molecular and Cellular Biology, 1801 (11), 1175-1183 (2010)

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