1、往樣品當中添加進去澄清的石灰水，如果發現有偶白色沉淀的出現生成，那么說明
氫氧化鉀出現了變質的情況。
1. Add clarified Limewater into the sample. If even white precipitates are found, it indicates that the potassium hydroxide has deteriorated.
2、如果往樣品當中滴加進去過量的稀鹽酸發現有氣泡的出現，那么說明產品已經出現了變質的情況。
2. If excessive dilute hydrochloric acid is added to the sample and bubbles are found, it indicates that the product has deteriorated.
3、還可以往樣品當中添加進去氯化鋇，如果發現有白色沉淀的生成，那么說明產品已經出現了變質的情況。
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的時候可以通過往當中加入進去過量氯化鋇一直等到完全沉淀，等到沉淀已經靜止之后取上層的清液放置在試管當中，然后往當中滴加無色的酚酞溶液，如果酚酞變紅了那么就說明當中是有堿性物質的。
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、如果往當中加入進去過量氯化鋇2:1，如果有白色沉淀的生成，那么就說明產品出現了部分變質的情況。
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是完全變質了。如果無色酚酞已經變紅了那么就說明只是部分變質，其中還有一部分的產品是有一些效果的。
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的檢測方法，因為產品本身在變質之后是無法進行使用的，所以我們在經過檢測之后發現已經變質那么需要及時的進行處理不再進行使用，還有就是在進行檢測的時候需要注意一定不要隨意的往當中添加其他的化學物質。更多相關事項就來我們網站
http://m.gddxcpa.com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.gddxcpa.com Consult!
