亚洲成人三区,一级毛片久久久,国产精品密蕾丝视频下载,欧美成人国产va精品日本一级

 

High Quality CAS 100-74-3 / N-ethylmorpholine

2023-11-13by admin

High Quality CAS 100-74-3 / N-ethylmorpholine

Overview:

Chinese name: N-ethylmorpholine

Alias: Dabco NEM, Niax NEM, Jeffcat NEM, Lupragen N104, PC CAT NEM, N-ethylmorpholine, ethylmorpholine

English name: N-ethylmorpholine, 4-Ethylmorpholine; ethylmorpholine; N-Ethyl morpholine; 4-ethylmorpholin-4-ium

Molecular Formula: C6H13NO

Relative molecular mass: 115.2

CAS No.: 100-74-3

Dabco NEM Niax NEM Jeffcat NEM Lupragen N104 PC CAT NEM N-Ethyl morpholine Ethyl morpholine

Physical and Chemical Properties:

N-Ethyl morpholine is colorless transparent liquid under normal condition.

Density (20℃): 0.92g/cm3

Viscosity (23℃): 2.3mPa.s

Water solubility: soluble in water

Flash point (TCC): 32℃;

Hydroxyl value: no data

Freezing point -63℃

Boiling point:139.2℃

Melting point:-63℃

Relative density 0.916(20/20℃)

Refractive index 1.4415

Flash point 27℃

Preparation method:

Obtained by reacting morpholine with ethyl bromide:

Morpholine was slowly added into ethidium bromide under stirring and cooling, and the reaction temperature was controlled below 70℃. After addition, reflux reaction for 6 hours. After recovering the ethylene bromide, cool and neutralize with 50% sodium hydroxide solution to strong alkaline. Separate the oil layer, the aqueous layer is extracted with ether, the extract is incorporated into the oil layer, the ether is recovered, dried with anhydrous sodium carbonate and fractionated at atmospheric pressure to obtain N-ethyl morpholine.

Applications:

N-Ethylmorpholine is a medium-strength tertiary amine catalyst, which is mainly used as polyester-type polyurethane soft foam catalyst in the polyurethane industry, with good skin-forming properties, and still has a strong catalytic effect on the gel reaction after the foam rises to a high point, so as to make the bubble holes expand to a large extent.

Uses:

Used as solvent, also used in organic synthesis. Used as a solvent for oils and resins, also used as an intermediate in organic synthesis. The product is soluble in water, alcohol, ether, can be used as solvents, catalysts, dyes, pharmaceuticals, surfactants, intermediates, but also for the production of preservatives, emulsifiers and coatings.

Storage and transportation:

Should be sealed and stored in dry, cool and ventilated warehouse

Packing:

200KG/drum Storage: it is recommended to store in dry and cool area with proper ventilation. Please fasten the packaging cover as soon as possible after the original packaging to prevent the mixing of other substances such as moisture and other substances that may affect the performance of the product. Store in a cool and dry place, keep the container sealed and avoid contact with oxides. Do not inhale dust and avoid contact with skin and mucous membranes. Store in a cool, ventilated warehouse. Keep away from fire and heat source. The temperature inside the warehouse should not exceed 30℃. Protect from direct sunlight. Keep the container sealed. Equipped with appropriate varieties and quantities of fire fighting equipment. Prohibit the use of mechanical equipment and tools that are easy to generate sparks. Load and unload lightly to prevent damage to packaging and containers.

Company?Name:

Newtop?Chemical?Materials?(Shanghai)?Co.,?Ltd.

Sales?Manager:

Hunter

E_Mail:

?sales@newtopchem.com

Telephone:

86-152 2121 6908

Fax:

86-021-5657?7830

Address:

Rm.?1104,?No.?258,?Songxing?West?Road,
Baoshan?District,?Shanghai,?China?(Mainland)

Website:

www.mimgu.com?

admin

主站蜘蛛池模板: 洪洞县| 修武县| 四子王旗| 英德市| 西林县| 隆安县| 平谷区| 宜宾县| 沐川县| 金阳县| 贺州市| 景泰县| 泰来县| 伊宁市| 新河县| 连州市| 攀枝花市| 调兵山市| 临清市| 于都县| 汝城县| 镇安县| 金溪县| 嘉善县| 邵东县| 留坝县| 台北市| 绥芬河市| 星子县| 汕尾市| 嵩明县| 堆龙德庆县| 富民县| 二手房| 广德县| 巧家县| 水富县| 察雅县| 孟连| 资讯 | 环江|