sodium hydroxide

化学式为：NaOH，俗称烧碱、火碱、片碱、苛性钠等，是一种高腐蚀性的强碱，是白色不透明的固体。有块状、片状、粒状和棒状等。易溶于水，溶解时会放出大量的热。易溶于水、乙醇以及甘油。燃烧时可能会产生有害的毒性烟雾

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

氢氧化钠对玻璃制品有轻微的腐蚀性，如果以玻璃容器长时间盛装热的氢氧化钠溶液，会造成玻璃容器损坏。

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.

氢氧化钠有强烈刺激和腐蚀性。会刺激眼和呼吸道，腐蚀鼻中隔，皮肤和眼直接接触会引起灼伤，误服可造成消化道灼伤，黏膜糜烂、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.

氢氧化钾

Potassium hydroxide

化学式为KOH俗称苛性钾，白色粉末或片状固体，具有强碱性和腐蚀性。易吸收空气中水分而潮解，吸收二氧化碳行成碳酸钾。当溶解于水、醇或用酸处理时产生大量热量。有强的碱性和腐蚀性，其性质与烧碱相似。中等毒，半数致死量(大鼠，经口)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.

由于氢氧化物对碳水化合物的分解作用，而使其相对于酸腐蚀的危险更加严重，经氢氧化钾腐蚀的皮肤，通常呈现深度灼伤，且难以愈合，一旦眼睛或皮肤接触到氢氧化钾，应迅速将受伤部位以水不断冲洗15分钟以上，并立即就医；口服会灼伤消化道，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.

储存注意事项：应储存于阴凉、干燥、通风良好的库房；远离火种、热源；应与易（可）燃物、酸类等分开存放。

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.