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

 

Pentamethyldiethylenetriamine

2019-07-12by admin

Pentamethyldiethylenetriamine

English name: N, N, N’, N”, N”-Pentamethyldiethylenetriamine
Molecular formula: C9H23N3
Molecular weight: 173.3
NEWTOP3

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: 乌兰察布市| 澄江县| 虹口区| 韶关市| 迁安市| 新丰县| 凉城县| 开远市| 台北县| 慈利县| 崇文区| 文成县| 定西市| 雷州市| 平凉市| 无锡市| 江都市| 呼图壁县| 扶风县| 色达县| 庐江县| 罗甸县| 梅河口市| 遵义市| 晋中市| 钦州市| 阿克陶县| 宜丰县| 巴楚县| 龙口市| 张家口市| 新竹市| 故城县| 罗源县| 固原市| 民和| 仙居县| 若尔盖县| 鹤岗市| 龙里县| 孟津县|