欧美精品日韩精品,精品欧美国产,在线中文字幕播放,欧美日本一区二区高清播放视频

 

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: www.hbysgp.com
Website?on?alibaba: pucatalyst.en.alibaba.com

admin

主站蜘蛛池模板: 固安县| 千阳县| 娱乐| 石林| 慈利县| 云梦县| 漾濞| 应城市| 突泉县| 古丈县| 富蕴县| 阳新县| 精河县| 胶州市| 丘北县| 印江| 巴林右旗| 岳阳市| 江川县| 连山| 永靖县| 临西县| 阳泉市| 石柱| 尉犁县| 定日县| 海兴县| 临漳县| 扶沟县| 廉江市| 嘉祥县| 博罗县| 木兰县| 乌海市| 富蕴县| 松溪县| 连州市| 临洮县| 安福县| 永善县| 阿鲁科尔沁旗|