Yellow and oily liquid. It can be ignited. Easy soluble in liquid solvent such as ethanol and ether. Under strong stirring it looks like emulsion when mixing with water.
本品为黄色油状液体,可燃烧,溶于乙醇、乙醚等有机溶剂,与水强搅拌下易呈乳状。
The compositions of grease were eluted with petroleum ether, benzene, chloroform, ethyl acetate, acetone, ethanol and characterized by means of IR and NMR spectroscopy.
油脂部分依次以石油醚、苯、氯仿、乙酸乙酯、丙酮、乙醇为淋洗剂进行洗脱,利用红外光谱、核磁共振光谱法对所分离组分进行了结构鉴定。
Characters: White crystalline powder, soluble in water, dilute alcohol, liquid ammonia and dimethylformamide, and not soluble in ethanol, ether and acetone.
理化性质:白色结晶性粉末、溶于水、稀醇、液氨和二甲基甲酰胺,而不溶于乙醇、醚和丙酮。
Method the extracts of petroleum ether, ether, ethyl acetate, ethanol and hot water from the whole plant were used to determine the in vitro miti-oxidant and antibacterial activity.
方法对楮头红的石油醚、乙醚、乙酸乙酯、乙醇和热水的粗提取物分别进行体外抗氧化和抑菌试验。
The ethanol extract from the twig bark powder of Periploca sepium was suspended in water and successively treated with petroleum ether, ethyl acetate and n-butanol.
将杠柳枝皮粉末的乙醇提取物悬浮于水后,依次用石油醚、乙酸乙酯和正丁醇萃取。
Method: Water extracts and ethanol extracts were obtained by maceration method, while petroleum ether extract was obtained by soxhlet's extracter.
方法:用浸渍提取法从洋虫中得到水提取物和乙醇提取物,用索氏提取器提取得到石油醚提取物。
The results showed that the antioxidative activity of the extract by water was stronger than that of Vc, while the extracts by 95 % ethanol and petroleum ether had no obvious antioxidation for lard.
结果表明:溪黄草水提取物具有一定的抗猪油自动氧化能力,且作用强于抗坏血酸,而95%乙醇和石油醚提取物对猪油的抗氧化作用不明显。
Arresting cough, expectorant and anti-asthmatic effects. Intraperitoneal injection of water, methanol, ether and acid ethanol extracts of hua shu PI possesses anti-cough effect in mice.
止咳、祛痰与平喘作用。小鼠腹腔注射白桦树皮的水、甲醇、乙醚及酸性乙醇的提取物以及乙醚析出物,都有一定的止咳作用。
The experiment shows that ethylene glycol dimethyl ether can be dissolved in ethanol and diesel, and the blended fuel has a good stability.
试验表明乙二醇二甲醚与乙醇、柴油互溶,具有较好的稳定性。
Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst.
用国产NKC-29型强酸性阳离子交换树脂为催化剂,在常压液相条件下用乙醇和叔戊醇为原料合成了乙基叔戊基醚。
The crude glucuronides of the various alcohols were isolated from the urine by extraction with ether or mixtures of ether and ethanol.
各种乙醇的粗葡萄糖醛酸甙从尿中用醚或醚和乙醇混合物提取分离的。
DBM is white or light yellow crystalline powder, soluble in ether, chloroform, xylene, toluene and sodium hydroxide solution, slightly soluble in ethanol, very slightly soluble in water.
本品为白色或浅黄色结晶粉末,易溶于乙醚,氯仿,二甲苯,甲苯及氢氧化钠水溶液,微溶于乙醇,极微溶于水。
To obtain chemical constituents from the fruit of Catalpa ovata G. Don, the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
采用水提取法、醇提取法和石油醚提取法对梓树果实的化学成分进行了比较全面的定性实验。
MethodsTo obtain chemical constituents from Musa basioo, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
方法采用水提取法、醇提取法和石油醚提取法对芭蕉根的化学成分进行定性实验。
Pok, in this paper the methods of water extraction, ethanol extraction and petroleum ether extraction were used.
本实验采用水提取法、醇提取法和石油醚提取法对准噶尔铁线莲的化学成分进行了定性研究。
With ethanol and other organic solvents miscible, insoluble in water and petroleum ether.
能与乙醇等一般有机溶剂混溶,不溶于水和石油醚。
Commercially available sodium lauryl sulfate was purified by such methods as recrystallization of water, recrystallization of ethanol and extraction of ethyl ether.
介绍了用两种不同的方法制备十二烷基硫酸钠,并对制备出的产物的性能与分析纯的标样进行了比较。
Commercially available sodium lauryl sulfate was purified by such methods as recrystallization of water, recrystallization of ethanol and extraction of ethyl ether.
介绍了用两种不同的方法制备十二烷基硫酸钠,并对制备出的产物的性能与分析纯的标样进行了比较。
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