http://www.esafety.cn/blog/wll/66030/index.html

[化工]化学试验一般操作规则

作者[孙锡云] 发表于[2011-2-17 16:23:00]

化学试验一般操作规则

 

  1.配制稀硫酸时,必须在烧杯和锥形瓶等耐热容器内进行,并必须缓缓将浓硫酸加入水中,配制王水时,应将硝酸缓缓注入盐酸,同时用玻璃棒随时搅拌,不准用相反次序操作。

  2.一切试剂瓶都要有标签。有毒药品要在标签上注明。

  3.溶解氢氧化钠、氢氧化钾等发热物质时,必须置于耐热容器内进行。

  4.严禁试剂入口。如需要以鼻鉴别试剂时,须将试剂瓶远离,用手轻轻扇动,稍闻其气味,严禁鼻子接近瓶口。

  5.折断玻璃管()时,须用钢锉在折断处锉,一小槽,再垫布折断。使用时要把断口烧成圆滑的形状。如将玻璃管()插入橡皮管或橡皮塞时,应垫布插入,防止折断伤手。

  6.严禁食具和器具混在一起或互相挪用。

  7.易发生爆炸的操作,不得对着人进行。例如NO2O2熔融时,坩埚口不得对着人,并应事先避免可能发生的伤害。必要时应戴好防护眼镜或设置防护挡板。

  8.一切发生有毒气体的操作,须于通风柜内进行。通风装置失效时禁止操作。

  9.一切固体不溶物及浓酸严禁倒入水槽,以防堵塞和腐蚀水道。

  10.身上或手上沾有易燃物时,应立即洗干净,不得靠近明火。

  11.开启大瓶液体药品时,须用锯将石膏锯开。禁止用其它物品敲开,以免瓶子破裂。

  12.处理后的浓酸和浓碱废液,必须先将水门放开,方可倒入水槽。一切废液,如含有害物质超过安全标准,则应先行处理,不准直接排入下水系统。

  13.高温物体(灼热的磁盘或烧坏的燃烧管等)要放于不能起火的地方。

  14.取下正在沸腾的水或溶液时,须先用烧杯夹子轻轻摇动后才能取下使用,以免使用时突然沸腾而溅出伤人。

  15.使用酒精灯、煤气灯时,注意无色火焰烫伤。

  16.蒸馏易挥发和易燃体所用的玻璃器具必须完整无缺陷。禁止用火直接加热。

  • 标签:化学试验 操作规则 
  • 圈子:注安之家 
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    原创

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    原创

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    原创

    作者[原创(游客)] 发表于[2016-9-6 21:54:57]
    原创(游客)http://rywpxl.lofter.com/post/1e5a849c_c3d5311 http://rywpxl.lofter.com/post/1e5a849c_c3d5310 http://rywpxl.lofter.com/post/1e5a849c_c3d530f http://rywpxl.lofter.com/post/1e5a849c_c3d530e http://rywpxl.lofter.com/post/1e5a849c_c3d530d http://rywpxl.lofter.com/post/1e5a849c_c3d530c http://rywpxl.lofter.com/post/1e5a849c_c3d530b http://rywpxl.lofter.com/post/1e5a849c_c3d530a http://rywpxl.lofter.com/post/1e5a849c_c3d5309 http://rywpxl.lofter.com/post/1e5a849c_c3d5308
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