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      纯碱:纯碱,学名碳酸钠,俗名苏打、石碱、洗涤碱,化学式Na?CO?,属于盐类,含十个结晶水的碳酸钠为无色晶体,结晶水不稳定,易风化成白色粉末Na2CO3,为强电解质,具有盐的通性和热稳定性,易溶于水,其水溶液呈碱性。
      侵入途径:
      健康危害: 本品具有刺激性和腐蚀性。直接接触可引起皮肤和眼灼伤。生产中吸入其粉尘和烟雾可引起呼吸道刺激和结膜炎,还可有鼻粘膜溃疡、萎缩及鼻中隔穿孔。长时间接触本品溶液可发生湿疹、皮炎、鸡眼状溃疡和皮肤松弛。接触本品的作业工人呼吸器官疾病发病率升高。误服可造成消化道灼伤、粘膜糜烂、出血和休克。
      环境危害:
      燃爆危险: 本品不燃,具腐蚀性、刺激性,可致人体灼伤。
      急救措施
      皮肤接触: 立即脱去污染的衣着,用大量流动清水冲洗至少15分钟。就医。
      眼睛接触: 立即提起眼睑,用大量流动清水或生理盐水冲洗至少15分钟。就医。
      吸入: 脱离现场至空气新鲜处。如呼吸困难,给输氧。就医。
      食入: 用水漱口,给饮牛奶或蛋清。就医。
      消防措施
      危险特性: 具有腐蚀性。未有特殊的燃烧爆炸特性。
      有害燃烧产物: 自然分解产物未知。
      灭火方法: 消防人员穿全身耐酸碱消防服。灭火时尽可能将容器从火场移至空旷处。
      第六部分:泄漏应急处理
      应急处理: 隔离泄漏污染区,限制出入。建议应急处理人员戴防尘面具,穿防毒服。避免扬尘,小心扫起,置于袋中转移至安全场所。若大量泄漏,用塑料布、帆布覆盖。收集回收或运至废物处理场所处置。
      操作处置与储存
      操作注意事项: 密闭操作,加强通风。操作人员经过专门培训,严格遵守操作规程。建议操作人员佩戴自吸过滤式防尘口罩,戴化学安全防护眼镜,穿防毒物渗透工作服,戴橡胶手套。避免产生粉尘。避免与酸类接触。搬运时要轻装轻卸,防止包装及容器损坏。配备泄漏应急处理设备。倒空的容器可能残留有害物。稀释或制备溶液时,应把碱加入水中,避免沸腾和飞溅。
      储存注意事项: 储存于阴凉、通风的库房。远离火种、热源。应与酸类等分开存放,切忌混储。储区应备有合适的材料收容泄漏物。




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