锌粉的用途和危险特性--杨远锋的博客

锌粉的用途和危险特性

[ 2012-2-2 8:44:00 | By: 杨远锋 ]

锌粉（非引火的）  Zn   65.4 ：别名  亚铅粉，金属锌粉，Zinc, metal,powder
    危规分类及编号  遇湿易燃物品。GB4.3类43014。UN No.1436（锌粉或锌尘）；IMDG CODE 4373页，4.3类，副危险4.2类。自燃物品。

　　用途  铁制品防锈的电镀、干电池、涂料和保险粉生产。

　　物化性质  带蓝灰色或浅灰色粉末。潮湿粉尘在空气中易自燃，放出蓝绿色火焰，摇动时会产生火花，生成氧化锌。相对密度7.14。熔点419.4℃。沸点907℃。蒸气压133.3Pa(1mmHg)(487℃)，遇水反应。与硫酸、硝酸反应较慢，当含有少量其他金属如铜、锡、铅时则反应加速。

　　危险特性  自燃点460℃。爆炸极限500g/m3以上。粉尘与空气能形成爆炸性混合物，易被明火点燃引起爆炸。潮湿粉尘在空气中易自行发热燃烧。与水、酸类或碱金属氢氧化物接触能放易燃的氢气。与氧化剂、硫磺反应会引起着火或爆炸。小鼠腹腔LD50：15mg/kg。粉尘能刺激眼睛、皮肤和呼吸系统，吸入能引起咳嗽、低热。皮肤接触锌粉，吸湿发热，可造成灼伤。

　　辨识事故类型：火灾、爆炸、中毒

　　应急措施  消防方法：用干砂、干粉灭火，量较少时可用大量水扑救。急救：使吸入粉尘的患者脱离污染区，安置休息并保暖。眼睛受刺激用大量水冲洗。皮肤接触先用大量水冲洗，再用肥皂彻底洗涤。误服立即漱口，送医院诊治。

　　储运须知  包装标志：遇湿易燃物品。副标志：自燃物品。包装方法：（Ⅱ）类。引火的锌粉用玻璃瓶或铁桶，充惰性气体气密封口，外木箱。非引火锌粉用玻璃瓶外木箱内衬垫料或铁桶内衬塑料袋。储运条件：防止容器破损，储存于阴凉、干燥、通风良好的仓间。避免受潮。与酸类、强碱、卤代烃等隔离储运。泄漏处理：戴好防毒面具与手套。用砂土混合，在空旷地方，倒至以1：2（浓盐酸加水）组成的稀盐酸中，放置24小时，稀释后的污水放入废水系统。

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原创

[ 2016-9-6 17:04:01 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:39:13 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:15:54 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-8 15:35:49 | By: rqfim(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-15 11:35:33 | By: grimq(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-16 17:04:35 | By: jhycf(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-21 14:09:43 | By: ezqtw(游客) ]

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Re:在漫画中识别身边的违章

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