sodium hydroxide

化學式為：NaOH，俗稱燒堿、火堿、片堿、苛性鈉等，是一種高腐蝕性的強堿，是白色不透明的固體。有塊狀、片狀、粒狀和棒狀等。易溶于水，溶解時會放出大量的熱。易溶于水、乙醇以及甘油。燃燒時可能會產生有害的毒性煙霧

The chemical formula is NaOH, commonly known as caustic soda, caustic soda, flake alkali, caustic soda, etc. it is a kind of strong alkali with high corrosiveness and is a white opaque solid. There are massive, flaky, granular and rod-shaped. It is soluble in water and gives off a lot of heat when dissolved. Soluble in water, ethanol and glycerol. Harmful toxic smoke may be produced during combustion

氫氧化鈉對玻璃制品有輕微的腐蝕性，如果以玻璃容器長時間盛裝熱的氫氧化鈉溶液，會造成玻璃容器損壞。

Sodium hydroxide is slightly corrosive to glass products. If the glass container is filled with hot sodium hydroxide solution for a long time, the glass container will be damaged.

氫氧化鈉有強烈刺激和腐蝕性。會刺激眼和呼吸道，腐蝕鼻中隔，皮膚和眼直接接觸會引起灼傷，誤服可造成消化道灼傷，黏膜糜爛、出血和休克。

Sodium hydroxide has strong irritation and corrosiveness. It can irritate the eyes and respiratory tract, corrode the nasal septum, cause burns in direct contact with skin and eyes, and cause digestive tract burns, mucosal erosion, bleeding and shock.

氫氧化鉀

Potassium hydroxide

化學式為KOH俗稱苛性鉀，白色粉末或片狀固體，具有強堿性和腐蝕性。易吸收空氣中水分而潮解，吸收二氧化碳行成碳酸鉀。當溶解于水、醇或用酸處理時產生大量熱量。有強的堿性和腐蝕性，其性質與燒堿相似。中等毒，半數致死量(大鼠，經口)1230mg/kg。

Chemical formula is Koh, commonly known as caustic potassium, white powder or flake solid, with strong alkaline and corrosive. Easy to absorb moisture in the air and deliquescence, absorption of carbon dioxide line into potassium carbonate. When dissolved in water, alcohol or treated with acid, a large amount of heat is generated. It has strong alkalinity and corrosiveness, and its properties are similar to caustic soda. The median lethal dose (rat, oral) was 1230mg / kg.

由于氫氧化物對碳水化合物的分解作用，而使其相對于酸腐蝕的危險更加嚴重，經氫氧化鉀腐蝕的皮膚，通常呈現深度灼傷，且難以愈合，一旦眼睛或皮膚接觸到氫氧化鉀，應迅速將受傷部位以水不斷沖洗15分鐘以上，并立即就醫；口服會灼傷消化道，致命。

Due to the decomposition effect of hydroxide on carbohydrates, it is more dangerous than acid corrosion. The skin corroded by potassium hydroxide usually shows deep burns and is difficult to heal. Once eyes or skin contact with potassium hydroxide, the injured part should be washed with water for more than 15 minutes and immediately seek medical advice; If taken orally, it burns the digestive tract and is fatal.

儲存注意事項：應儲存于陰涼、干燥、通風良好的庫房；遠離火種、熱源；應與易（可）燃物、酸類等分開存放。

Storage precautions: store in a cool, dry and well ventilated warehouse; Keep away from fire and heat source; It should be stored separately from inflammables and acids.