Potassium hydroxide is a strong acid, which can be widely used in electroplating process or as chemical raw materials. However, in the case of application, we will find that the color of some products turns black, because there are some errors in the production process. Let's learn more about the reason why the color of potassium hydroxide turns black.

1.氮氣密封機械和設備應在驅動和進給后使用

1. Nitrogen sealing machinery and equipment shall be used after driving and feeding

當機械設備處于微正壓狀態時，能合理防止氣體進入系統軟件。因此，在制造過程中，氮氣密封的機械設備都是在加料后使用，進入氮氣的設備總是處于高溫強酸狀態。當二氧化碳進入時，會加劇鎳材料的侵蝕，從而增加其中的鎳含量，進而使色調變黑。

When the mechanical equipment is in micro positive pressure state, it can reasonably prevent gas from entering the system software. Therefore, in the manufacturing process, the mechanical equipment sealed with nitrogen is used after feeding, and the equipment entering nitrogen is always in the state of high temperature and strong acid. When carbon dioxide enters, it will aggravate the corrosion of nickel materials, increase the nickel content, and then darken the tone.

2.工作能力操縱

2. Operation ability

當進液量較大時，液體不能正常破乳或膜太厚。在整個升溫過程中，液體往往得不到傳熱，進而達不到沸騰所需的溫度，因此不能進行揮發，這將導致整個濃縮過程不能較好地進行，甚不能進行。

When the liquid inflow is large, the liquid cannot demulsify normally or the film is too thick. In the whole heating process, the liquid often can not get heat transfer, and then can not reach the temperature required for boiling, so it can not volatilize, which will lead to the whole concentration process can not be carried out well, or even can not be carried out.

3.減少開車和停車的頻率

3. Reduce the frequency of parking and driving

盡量規避頻繁駕駛和停放機械設備。因為每次開車時，燒堿溶液都會沖走一層對鎳材料表面有保養作用的氧化鎳層，然后再對下一層鎳材料進行清洗和蝕刻，所以在整個開車過程中，黑堿是不可規避的。

Try to avoid frequent driving and parking of mechanical equipment. During each start-up, caustic soda solution will wash away a nickel oxide layer that can maintain the surface of nickel materials, and then clean and etch the next layer of nickel materials. Therefore, black alkali can not be avoided during the whole start-up process.

4.開車前給機器蒸一下蒸汽

4. Steam the machine before driving

開車前，用蒸汽吹掃系統軟件，保障有較足的工作壓力和吹掃時間。

Before start-up, steam purging system software shall be used to ensure sufficient working pressure and purging time.

好了，關于氫氧化鉀色調變黑的原因就與大家分享到這里，有什么問題想了解或者想購買的廣大朋友們可詳細咨詢淄博炬泰石化有限責任公司將竭誠為您服務。

Well, I'll share with you the reason why the color of potassium hydroxide turns black. If you have any questions or want to buy, you can consult Zibo Jutai Petrochemical Co., Ltd. in detail. We will serve you wholeheartedly.