1) Propionic acid
丙酸
1.
Pretreatment of propionic acid fermented broth by microporous hollow-fiber membrane;
膜分离法预处理丙酸发酵液
2.
Compound Mutation Breeding of Propionic Acid High-yield Strain;
丙酸高产菌株的复合诱变选育
3.
Progress of propionic acid production by microbial fermentation;
微生物发酵法生产丙酸的研究进展
2) propanoic acid
丙酸
1.
The effect of intermediate structure on the properties of propanoic acid polyethers;
中间体结构对丙酸聚醚性能的影响
2.
The high-purity propionyl chloride was synthesized using propanoic acid and triphosgene as raw materials.
以丙酸和三光气为原料,用三光气法合成了纯度较高的丙酰氯。
3.
As an important fine chemical materical, propanoic acid is widely used in many fields, such as food additive, feed additive, pesticide, medicine, essence, organic solvent, chemical reagent, etc.
丙酸是一种重要的精细化工中间体 ,它广泛应用于食品和饲料添加剂、农药、医药、香精、有机溶剂 ,化学试剂等领域。
3) propionate
[英]['prəupiəneit] [美]['propiə,net]
丙酸
1.
Effect of Changing the Molar Ratio of Acetate to Propionate in Rumen Fluid on Rumen Fermentation and Some Blood Indexes;
瘤胃乙酸与丙酸摩尔比例的改变对瘤胃发酵及血液指标的影响
2.
Study on the Production,Absorption and Passage of Propionate in the Sheep Rumen with Indirect Method;
间接法评定绵羊瘤胃丙酸产生、吸收和流通规律研究
3.
The calcium propionate was synthesized with calcium oxide as raw material in this paper.
以氧化钙为钙源制取丙酸钙,对传统反应工艺进行了改进。
4) propyl propionate
丙酸丙酯
1.
Catalytic synthesis of propyl propionate with solid super acid SO~(2-)_4/Fe_2O_3;
固体超强酸SO_4~(2-)/Fe_2O_3催化合成丙酸丙酯
2.
Catalytic synthesis of propyl propionate by phosphotungstic acid supported on activated carbon;
活性炭固载磷钨酸催化合成丙酸丙酯
3.
Aluminum propoxide for the Tishchenko condensation of propanal to propyl propionate is prepared from aluminum powder and propanol.
以合成出的丙醇铝为催化剂,无水氯化锌为助催化剂,用丙醛一步合成了丙酸丙酯,收率可达92％,选择性可达93％。
5) propionic/acetic acid ratio
丙酸/乙酸
6) allyl propionate
丙酸烯丙酯
1.
The catalytic synthesis methods of allyl propionate with sulfuric acid, ferric chloride hexahydrate, stannous chloride dihydrate, ammonium ferric sulfate dodecahydrate, cupric sulfate, sodium bisulfate monohydrate and strong-acid cation exchange resin as catalysts were reviewed.
评述硫酸、六水三氯化铁、二水氯化亚锡、十二水合硫酸铁铵、硫酸铜、一水硫酸氢钠和强酸性阳离子交换树脂催化合成丙酸烯丙酯的方法。
补充资料：丙酸
| 丙酸 propionic acid 分子中含有3个碳原子的饱和羧酸。分子式CH3CH2COOH。可看作是甲基乙酸。干馏木材制得的木醋酸（或称焦木酸）中和各种发酵产物中均含少量丙酸。具有刺激性气味的无色液体。熔点－20.8℃，沸点141℃，密度0.9930克／ 厘米3(20℃)。易溶于水、乙醇、乙醚和氯仿中。丙酸的化学性质与乙酸相似，可生成盐、酯、酰卤、酰胺和酸酐。在光照下，氯气与丙酸反应，其a氢可被氯取代生成氯代丙酸。 过去，丙酸主要由制炭的副产品木醋酸中分离得到。现在是利用乙烯、一氧化碳和氢气进行氢合羰基化反应，首先生成丙醛，再进一步氧化生成丙酸。由丙烷、丁烷经液相氧化也能制取丙酸。由戊糖、己糖经发酵也可制得。丙酸主要用于制造纤维素三丙酸酯、纤维素乙酸丙酸酯，也可用于制造改性环氧树脂和用作合成聚酯树脂的催化剂。丙酸无毒，可用作谷物保藏剂和食物的霉菌抑制剂。丙酸与低级醇形成的酯可用于香精和油漆工业。丙酸还用于制造除草剂。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条