Preliminary_Chlorination_Paraffin_Study氯化石蜡初步合编.pptx

Preliminary Study of Chlorination Paraffin 氯化石蜡的初步研究 Chlorination Paraffin Chlorinated paraffins are a complex mixture of polychlorinated n-alkanes and are subdivided according to their carbon chain length into short chain (SCCPs, C10-13), medium chain (MCCPs, C14-17) and long chain (LCCPs, C17). They are virtually insoluble in water but dissolve fully in most non-polar organic solvents like paraffin oil. SCCPs have a faint odour. They are non-flammable and do not evaporate easily. - 氯化石蜡是一个复杂的多氯正烷烃的混合物和细分根据其碳链长度为短链(sccp C10-13),中等链(MCCPs C14-17)和长链(LCCPs C 17)。它们几乎不溶于水,但是溶解完全在大多数非极性有机溶剂如石蜡油。是不易燃的,不容易蒸发。 Short chain CPs (SCCPs) Uses of SCCPs 短链用途 Short chain chlorinated paraffins (SCCPs) can be used as a plasticizer in rubber, paints, adhesives, flame retardants for plastics including vinyl flooring, carpet backing and wire and cable coating. SCCPs also may be used as fatting and softening agents in the leather industry an impregnations agent in the textile industry and as an additive for sealing compounds. They are widely used as an extreme pressure lubricant in metal working fluids. 短链氯化石蜡(sccp)可以用作增塑剂在橡胶、油漆、粘合剂、阻燃剂乙烯等塑料地板,地毯底布和电线电缆涂层。 sccp也可能被用作皮革行业的去脂和软化代理纺织工业的浸渍剂和密封化合物作为添加剂。被广泛用作金属加工液的极压润滑剂。 Environmental Concerns 环境问题 SCCPs are classified as dangerous to the environment, due to their high toxicity to aquatic organisms, and they may cause long-term adverse effects in the aquatic environment. They are persistent agents which are not easily degraded by natural mechanisms. SCCPs are bioaccumulative substances which accumulate mainly in aquatic animal tissues, and enzymatic disrupters which alter the hormonal system of living beings. Excessive exposure to SCCPs may affect the kidney, liver and thyroid gland, and may cause cancer. 被归类为危险的环境,水生生物,由于其高毒性,而且他们可能产生长期不良影响在水生环境。他们持续的代理不容易退化的自然机制。 sccp的生物累积性的物质积累主要在水生动物组织和酶把改变生物的内分泌系统。 过度暴露于sccp会影响肾脏,肝脏和甲状腺,可能导致癌症。 Short chain CPs (SCCPs) In the EU, the use of SCCPs is restricted in REACH. Regulation (EC) 552/200