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氫氧化鉀溶液能腐蝕哪些材料?

來源:鄭州天順食品添加劑有限公司 發(fā)布時間:2022-10-19 09:10:34 關(guān)注: 0 次
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眾所周知氫氧化鉀具有極強的腐蝕性,并且其化學(xué)性質(zhì)與燒堿相似,能引起灼傷,吸入后強烈刺激呼吸道或造成灼傷。皮膚和眼直接接觸可引起灼傷;口服灼傷消化道,可致死。但是除了對人體皮膚會造成腐蝕性外還能腐蝕哪些材料。
  It is well known that potassium hydroxide is highly corrosive, and its chemical properties are similar to those of caustic soda, which can cause burns. After inhalation, it can strongly stimulate the respiratory tract or cause burns. Direct contact of skin and eyes can cause burns; oral burn of digestive tract can cause death. But what materials can corrode besides corrosiveness to human skin.
  首先我們可以排除掉氫氧化鉀溶液不能腐蝕的材料,根據(jù)HG/T20667-1990相關(guān)表示,氫氧化鉀的儲罐應(yīng)用橡膠做內(nèi)襯,所以它并不會腐蝕這些材料,如:天然硬膠,天然軟膠,丁苯膠,氯丁膠,丁基膠等;
  First of all, we can exclude the materials that cannot be corroded by potassium hydroxide solution. According to Hg / t20667-1990, the tank of potassium hydroxide should be lined with rubber, so it will not corrode these materials, such as natural hard rubber, natural soft rubber, styrene butadiene rubber, neoprene, butyl rubber, etc;
  其次根據(jù)相對的資料顯示氫氧化鉀與金屬鋁會發(fā)生反應(yīng),其反應(yīng)式如下:
  Secondly, according to the relative data, potassium hydroxide will react with aluminum, and the reaction formula is as follows:
氫氧化鉀
  如與鋁反應(yīng):2Al+2KOH+2H2O=2KAlO2+3H2↑
  Such as reaction with aluminum: 2Al + 2koh + 2H2O = 2kalo2 + 3h2 ↑
  如與氧化鋁反應(yīng):Al2O3+2KOH=2KAlO2+H2O
  Such as reaction with alumina: Al2O3 + 2koh = 2kalo2 + H2O
  所以氫氧化鉀溶液在儲存配送時應(yīng)注意不要使用這些材料,并且要儲存在陰涼、干燥、通風(fēng)良好的庫房。遠離火種、熱源。庫內(nèi)濕度最好不大于85%。包裝必須密封,切勿受潮。應(yīng)與易(可)燃物、酸類等分開存放,切忌混儲。儲區(qū)應(yīng)備有合適的材料收容泄漏物。
  Therefore, the potassium hydroxide solution should not use these materials in storage and distribution, and should be stored in a cool, dry, well ventilated warehouse. Keep away from fire and heat. The humidity in the warehouse should be no more than 85%. The package must be sealed from moisture. It shall be stored separately from inflammable (inflammable) substances and acids, and mixed storage shall be avoided. The storage area shall be equipped with appropriate materials to contain the leakage.

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