四溴

Effects of 2, 2', 4, 4'-tetrabrominated biphenyl ether (BDE-47) on photosynthetic characteristics of two marine microalgae were comprehensively investigated.

研究了不同浓度的2，2'，4，4'-四溴联苯醚(BDE-47)对2种海洋微藻的光合特性的影响。

The total synthesis of the title compound 10 was accomplished starting from 3,5-dimethoxybenzoic acid (1) and p-hydroxybenzaldehyde (6). In the process, esterification, reduction, bromination and Wittig-Homer reaction were performed.

以3，5-二甲氧基苯甲酸为起始原料，经过甲醇酯化、氢化铝锂还原、四溴化碳溴代和Wittig-Homer反应，高产率的合成了Wittig-Homer试剂(5)。

The effects of tetrabromobisphenol A content and the ratio of TBBA to Sb2O3 on the flame retardance of polycarbonate are studied.

研究四溴双酚A用量及其与Sb2O3的配比对聚碳酸酯阻燃性能的影响。

PETEDA was synthesized through pentaerythrityl tetrabromide and ethylenediamine's reacting by the aminolyzing reaction of alkyl halide. It was proved that the product contains a lot of amino groups analyzed by FTIR (Fourier Transform Infrared Spectroscopy) and ETA.

以四溴代季戊烷和乙二胺为原料，通过卤代烷胺解反应，合成了树枝状分子季戊四乙二胺，采用傅立叶变换红外光谱和元素分析对其进行了表征。

The mixture of CP-Sb〓O〓 sol with organic bromide of tetrabromo bisphenol A is rather stable in the alcohol solvent.

CP-Sb〓O〓溶胶与四溴双酚A阻燃剂在乙醇溶剂中均匀混合，具有良好的相容性。

The colloidal particles of CP-Sb〓O〓 can increase the flame retardant synergism and reduce the amounts of tetrabromo bisphenol A during the treatment of polyester fiber.

CP-Sb〓O〓溶胶不仅显示出明显的阻燃增效作用，而且还可使四溴双酚A阻燃剂的用量适当减少。

One-step synthesis of the high molecular weight bromated epoxy resins for flame retardants is studied with tetrabromobisphenol A and epichlorohydrin as raw materials in mixed solvent comprising 1,4-dioxan and water.

研究以四溴双酚A和环氧氯丙烷为原料在二氧六环和水混合溶剂中一步法合成了高分子量溴化环氧树脂阻燃剂。

Tetrabromobisphenol-A is the most widely used brominated flame retardant in the world.

四溴双酚－A是一种在世界范围内被广泛应用的溴代阻燃剂。

The main products of the company: Tetrabromobisphenol A, brominated epoxy.

公司主要产品品种：四溴双酚A、高分子溴化环氧阻燃剂。

With 4 Xiu Shuang phenol - A and solid smooth air is raw material, dissolve it in 1 in, 2- 2 chlorine ethane solvents, slow drop adds 3 Yi Ans to carry out solution get together , with 3 Xiu benzene phenol does end dose, thick product sinks by industrial alcohol Xi after, take out to strain , wash is dry , grind white powder form flame retardant assemble carbon sour ester product.

以四溴双酚-A、固体光气为原料，将之溶解在1，2-二氯乙烷溶剂中，缓慢滴加三乙胺进行溶液聚合，以三溴苯酚做封端剂，粗产品经工业酒精沉析后，抽滤，洗涤，干燥，研磨得白色粉末状阻燃聚碳酸酯产品。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新