Polybrominated biphenyl - Wikipedia
Polybrominated biphenyls (PBBs), also called brominated biphenyls or polybromobiphenyls, are a group of manufactured chemicals that consist of polyhalogenated derivatives of a biphenyl core. Their chlorine analogs are the PCBs.
Polybrominated diphenyl ethers - Wikipedia
Polybrominated diphenyl ethers or PBDEs, are a class of organobromine compounds that are used as flame retardants. Like other brominated flame retardants, PBDEs have been used in a wide array of products, including building materials, electronics, furnishings, motor vehicles, airplanes, plastics, polyurethane foams, [1] and textiles.
聚溴聯苯 - 维基百科，自由的百科全书
聚溴聯苯 （PBB）也稱為 多溴聯苯，是 联苯 的 多鹵素 衍生物的總稱。 其結構類似 多氯聯苯。 聚溴聯苯屬於 溴化阻燃劑，由於其阻燃特性，廣泛用在電子器材的塑膠中。 但因為其潛在的免疫毒性、對中樞神經系統及內分泌系統的影響， 欧洲联盟 的 危害性物質限制指令 （RoHS）有管制此物質在電子及電機器材中的使用，最大允許含量是1000ppm（0.1%） [1]。 特性. 聚溴聯苯多半是無色或白色的固體，會在 攝氏 72度軟化，在300度以上會分解。 其 蒸氣壓 低，在 苯 及 甲 …
多溴联苯 - 百度百科
多溴联苯（polybrominated biphenyls，简称PBBs），包括四溴代、五溴代、六溴代、八溴代、十溴代等209种同系物，市场上一般以一组不同溴代原子数的联苯混合物作为商品出售，总称为多溴联苯。
Toxicological Profile for Polybrominated Biphenyls.
PBBs are a class of structurally similar brominated hydrocarbons in which 2–10 bromine atoms are attached to the biphenyl molecule. Monobrominated structures (i.e., one bromine atom attached to the molecule) are often included when describing PBBs. The general chemical structure of PBBs is shown below:
RELEVANCE TO PUBLIC HEALTH - Toxicological Profile for Polybrominated …
Polybrominated biphenyls (PBBs) are brominated organic compounds used as flame retardant additives in plastics, textiles, and other materials. As additives, they are physically mixed into product applications, rather than chemically bound.
HEALTH EFFECTS - Toxicological Profile for Polybrominated …
MRLs are derived when reliable and sufficient data exist to identify the target organ (s) of effect or the most sensitive health effect (s) for a specific duration within a given route of exposure. MRLs are based on noncancerous health effects only and do not consider carcinogenic effects.
欧路词典|英汉-汉英词典 polybrominated是什么意思_polybrominated的中文解释和发音_polybrominated …
adj. 多溴化的. 英语例句库. 1. Polybrominated Diphenyl Ether. 六种物质. 声明：以上例句、词 均由互联网资源 动生成，部 未经 审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。. 显示所有包含 polybrominated 的英语例句.
Polybrominated Biphenyls (PBBs) | Toxic Substances | Toxic …
Polybrominated biphenyls (PBBs) are manufactured chemicals. They are added to the plastics used to make products like computer monitors, televisions, textiles, plastic foams, etc. to make them difficult to burn. PBBs can leave these plastics and find their way into the environment.
Polybrominated diphenyl ethers in the environmental systems: a …
PBDEs are human-influenced chemicals utilized massively as flame retardants. They are environmentally persistent, not easily degraded, bioaccumulate in the biological tissue of organisms, and bio-magnify across the food web. They can travel over a long distance, with air and water being their possible transport media.