特性:屬強鹼性無機化合物,具高度腐蝕性與潮解性,易吸收空氣中的水分及二氧化碳。溶於水時會產生強烈放熱反應。能與酸類發生中和反應,並可與多種金屬(如鋁、鋅、錫)產生反應。
建議用途:
紙漿與紙加工
肥皂製造
紡織品處理
精製植物油
再生橡膠
再生離子交換樹脂
食品工業中水果與蔬菜的去皮
實驗室試劑
蝕刻與電鍍
食物添加劑
居家用途:
-去除油汙:將氫氧化鈉與水溶解(濃度約5%~10%,氫氧化鈉緩慢到入水中),將調配好的水溶液擦拭有油汙的地方,過段時間再用清水沖洗或抹布擦拭即可。
-馬桶阻塞、管路不通:直接倒入管路或馬桶中,並適時加水溶解。
注意 :不可用在鋅、錫、管路需注意是否可耐高溫。
Characteristics: A strong alkaline inorganic compound with high corrosivity and hygroscopic properties. It readily absorbs moisture and carbon dioxide from the air. Dissolution in water generates significant heat. Reacts with acids and certain metals such as aluminum, zinc, and tin.
Recommended Use:
Pulp and paper processing
Soap manufacturing
Textile processing
Refining vegetable oils
Recycled rubber
Regenerated ion-exchange resins
Peeling of fruits and vegetables in the food industry
Laboratory reagents
Etching and electroplating
Food additives
Household Use:
-Removing grease: Dissolve sodium hydroxide in water (concentration about 5% to 10%, slowly pouring the sodium hydroxide into the water). Use the prepared solution to wipe the greasy area, then rinse with clean water or wipe with a cloth after a period of time.
-Clogged toilets and pipes: Pour directly into the pipe or toilet and add water as needed to dissolve.
Note: DO NOT use on aluminum (Al), zinc (Zn), tin (Sn). Be aware of whether the pipes can withstand high temperatures.