402907
丙酸
ACS reagent grade, ≥99.5%, liquid
别名:
Propanoic acid, Propanyl acid, 初油酸
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关于此项目
线性分子式:
CH3CH2COOH
化学文摘社编号:
分子量:
74.08
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021305
UNSPSC Code:
12352100
EC Number:
201-176-3
MDL number:
Beilstein/REAXYS Number:
506071
产品名称
丙酸, ACS reagent, ≥99.5%
InChI key
XBDQKXXYIPTUBI-UHFFFAOYSA-N
InChI
1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
SMILES string
CCC(O)=O
grade
ACS reagent
vapor density
2.55 (vs air)
vapor pressure
2.4 mmHg ( 20 °C)
assay
≥99.5%
form
liquid
autoignition temp.
955 °F
expl. lim.
12.1 %
analyte chemical class(es)
amino acids
impurities
≤0.002% Carbonyl compounds
≤0.10% Readily oxidizable substances (as HCOOH)
≤0.15% water
evapn. residue
≤0.01%
color
APHA: ≤20
refractive index
n20/D 1.386 (lit.)
bp
141 °C (lit.)
mp
−24-−23 °C (lit.)
solubility
H2O: soluble
density
0.993 g/mL at 25 °C (lit.)
cation traces
heavy metals (as Pb): ≤0.001%
functional group
carboxylic acid
Quality Level
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Application
丙酸可以用来改变石灰石，提高它吸收CO2的能力。
General description
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。
hcodes
signalword
Danger
Hazard Classifications
Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3
target_organs
Respiratory system
存储类别
3 - Flammable liquids
wgk
WGK 1
flash_point_f
129.2 °F - closed cup
flash_point_c
54 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
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
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
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)
Flour and Breads and their Fortification in Health and Disease Prevention.
Victor R. Preedy, Ronald Ross Watson, Vinood B
Technology & Engineering, 476-476 (2011)
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