Tetrakis ( diethylamino ) phosphonium bromide ( TPB ) was a novel phase transfer catalyst used to prepare fluorinated aromatic compounds.

四 ( 二乙胺基 ) 溴化鏻 ( TPB ) 是制备含氟芳香族化合物的一种新型相转移催化剂.

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With CFT - 500 capillary rheometer, the rheological properties of fireproofing copolyester with phosphonium are studied.

用CFT -500 型毛细管流变仪研究磷系共聚阻燃聚酯的流变性能.

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It's intresting that after tanned with phosphonium salt the isometric point goes down firstly, then up.

但是膦盐鞣剂鞣制过后皮胶原的等电点却是先降低后升高.

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