眾所周知氫氧化鉀具有極強(qiáng)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(qiáng)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(duì)人體皮膚會(huì)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.
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(chǔ)罐應(yīng)用橡膠做內(nèi)襯,所以它并不會(huì)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(duì)的資料顯示氫氧化鉀與金屬鋁會(huì)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:
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(chǔ)存配送時(shí)應(yīng)注意不要使用這些材料,并且要儲(chǔ)存在陰涼、干燥、通風(fēng)良好的庫(kù)房。遠(yuǎn)離火種、熱源。庫(kù)內(nèi)濕度不大于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(chǔ)。儲(chǔ)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.