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

 

N,N,N’,N”,N”-Pentamethyldiethylenetriamine

2019-07-12by admin

Pentamethyldiethylenetriamine

English name: N, N, N’, N”, N”-Pentamethyldiethylenetriamine
Molecular formula: C9H23N3
Molecular weight: 173.3
NEWTOP1

Physical and chemical properties
Pentamethyldiethylenetriamine is a colorless to pale yellow clear liquid that is readily soluble in water.
Purity: 98.0%
Viscosity (25 ° C): 2mPa.s
Relative density (20 ° C): 0.8302-0.8306
Flash point (closed loop): around 72 °C
Flash point (PMCC): 83.3 ° C
Boiling range: 196-201 ° C or 70-80 ° C (1100 Pa)
Steam pressure (21 ° C): 0.29 * 133pa
Freezing point: <-20 °C

System of law
Pentamethyldiethylenetriamine is generally obtained by N-methylation of diethylenetriamine as a raw material, and the methylation method includes a formic acid/formaldehyde method, a formaldehyde hydrogenation method, and the like.

Characteristics and uses
Pentamethyldiethylenetriamine is a highly reactive, strong foaming polyurethane catalyst that can also be used to balance overall foaming and gelling reactions. It is widely used in a variety of polyurethane rigid foams, including polyisocyanuric acid sheet hard foam, can also improve foam fluidity, thus improving product production processes and improving product quality. Pentamethyldiethylenetriamine can also be used alone as a catalyst for polyurethane foam formulations, or with other catalysts such as DNSHA. When used alone as a hard foam catalyst, the amount is in the range of 1.0 to 2.0 parts by mass per 100 parts by mass of the polyol. In addition to its use in hard foam formulations, pentamethyldiethylenetriamine can also be used in the production of polystyrene blister foams and molded foams.

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: m.mimgu.com
Website?on?alibaba: pucatalyst.en.alibaba.com

admin

主站蜘蛛池模板: 金川县| 格尔木市| 黄浦区| 伊通| 班戈县| 哈巴河县| 钟山县| 克东县| 西昌市| 和林格尔县| 巫溪县| 淳化县| 台中市| 遂昌县| 汝阳县| 嘉荫县| 泗阳县| 新营市| 安阳县| 洱源县| 汕头市| 潞城市| 安义县| 扎赉特旗| 盐边县| 通河县| 屯昌县| 葵青区| 张家港市| 琼结县| 松潘县| 古浪县| 巴楚县| 尉犁县| 离岛区| 峡江县| 阳原县| 莎车县| 吴川市| 永清县| 祥云县|