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[" o cloo酸钠不能使用干粉和沙土灭火的原理

2019-10-14View Original

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2 A segunda lista de qu第二批重点监管的危险化学品安全措施和应急处置原则明确指出不能使用砂土和干粉灭火,氯酸钠是固体强氧化剂,为什么不能使用砂土灭火呢?砂土灭火不是万能的吗?里面有什么化学原理吗?
Reply #22019-10-14
1 首先沙土不能是万能的,锂燃烧就不能使用沙土灭火,容易升华的物质燃烧也不能用沙土灭火。 其次,如果化学物是受撞击、摩擦容易爆炸的话,不能用沙土或者干粉灭火,防止产生摩擦以及碰撞。
Reply #32020-09-22
氯酸钠粉尘对人体会造成严重的健康危害,所以会不会是出于避免扬尘的角度。同时氯酸钠易溶于于水,这应该是要求用水灭火的原因 pérdida de polvo
Reply #42022-09-10
氯酸钠是助燃剂,本身不可燃。温度超过30 温度超过3摄氏度会释放氧气,但氯酸钠的溶解度很高,所以要用水把未分解释放氧气的氯酸钠溶解掉,沙土无法迅速降温到3摄氏度以下,也盖不住释放的氧气。
Reply #52022-09-11
爆炸品发生事故时禁止用沙土封堵。

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