1、往樣品當(dāng)中添加進(jìn)去澄清的石灰水，如果發(fā)現(xiàn)有偶白色沉淀的出現(xiàn)生成，那么說明
氫氧化鉀出現(xiàn)了變質(zhì)的情況。
1. Add clarified Limewater into the sample. If even white precipitates are found, it indicates that the potassium hydroxide has deteriorated.
2、如果往樣品當(dāng)中滴加進(jìn)去過量的稀鹽酸發(fā)現(xiàn)有氣泡的出現(xiàn)，那么說明產(chǎn)品已經(jīng)出現(xiàn)了變質(zhì)的情況。
2. If excessive dilute hydrochloric acid is added to the sample and bubbles are found, it indicates that the product has deteriorated.
3、還可以往樣品當(dāng)中添加進(jìn)去氯化鋇，如果發(fā)現(xiàn)有白色沉淀的生成，那么說明產(chǎn)品已經(jīng)出現(xiàn)了變質(zhì)的情況。
3. Barium chloride can also be added to the sample. If white precipitates are found, the product has deteriorated.
4、檢查氫氧化鉀部分變質(zhì)的時(shí)候可以通過往當(dāng)中加入進(jìn)去過量氯化鋇一直等到完全沉淀，等到沉淀已經(jīng)靜止之后取上層的清液放置在試管當(dāng)中，然后往當(dāng)中滴加無色的酚酞溶液，如果酚酞變紅了那么就說明當(dāng)中是有堿性物質(zhì)的。
4. To check the partial deterioration of potassium hydroxide, you can add excessive Barium chloride into it until it is completely precipitated. After the precipitation has stopped, take the clear liquid on the upper layer and place it in the test tube, and then drop the colorless phenolphthalein solution into the middle. If the phenolphthalein turns red, it indicates that there are alkaline substances in it.
5、如果往當(dāng)中加入進(jìn)去過量氯化鋇2:1，如果有白色沉淀的生成，那么就說明產(chǎn)品出現(xiàn)了部分變質(zhì)的情況。
5. If excessive Barium chloride 2:1 is added into it, and white precipitate is generated, it indicates that the product has partially deteriorated.
6、加入無色酚酞如果無色酚酞不變色那么就說明已經(jīng)是完全變質(zhì)了。如果無色酚酞已經(jīng)變紅了那么就說明只是部分變質(zhì)，其中還有一部分的產(chǎn)品是有一些效果的。
6. If colorless phenolphthalein does not change color, it indicates complete deterioration. If the colorless phenolphthalein has turned red, it indicates that it has only partially deteriorated, and there are also some products that have some effects.
上面介紹的就是氫氧化鉀是否變質(zhì)的檢測方法，因?yàn)楫a(chǎn)品本身在變質(zhì)之后是無法進(jìn)行使用的，所以我們在經(jīng)過檢測之后發(fā)現(xiàn)已經(jīng)變質(zhì)那么需要及時(shí)的進(jìn)行處理不再進(jìn)行使用，還有就是在進(jìn)行檢測的時(shí)候需要注意一定不要隨意的往當(dāng)中添加其他的化學(xué)物質(zhì)。更多相關(guān)事項(xiàng)就來我們網(wǎng)站
http://m.gzuvafuz.cn咨詢吧！
The above is the detection method for whether potassium hydroxide is deteriorated. Because the product itself cannot be used after deterioration, we need to deal with it in time and not use it again if we find that the product has deteriorated after detection. In addition, we need to pay attention not to add other chemicals randomly during detection. For more related matters, come to our website http://m.gzuvafuz.cn Consult!
