氢氧化钠用于生产纸、肥皂、染料、人造丝，冶炼金属、石油精制、棉织品整理、煤焦油产物的提纯，以及食品加工、木材加工及机械工业等方面。化学实验：可以用作化学实验。除了用做试剂以外，由于它有很强的吸水性和潮解性，还可用做碱性干燥剂。
Sodium hydroxide is used in the production of paper, soap, dyes and rayon, metal smelting, petroleum refining, cotton fabric finishing, purification of coal tar products, food processing, wood processing and machinery industry. Chemical experiment: it can be used as a chemical experiment. In addition to being used as reagent, it can also be used as alkaline desiccant because of its strong water absorption and deliquescence.
也可以吸收酸性气体(如在硫在氧气中燃烧的实验中，氢氧化钠溶液可装入瓶中吸收有毒的二氧化硫);氢氧化钠在国民经济中有广泛应用，许多工业部门都需要氢氧化钠。使用时氢氧化钠多的部门是化学药品的制造，其次是造纸、炼铝、炼钨、人造丝、人造棉和肥皂制造业。
It can also absorb acid gas (for example, in the experiment of sulfur burning in oxygen, sodium hydroxide solution can be put into a bottle to absorb toxic sulfur dioxide); Sodium hydroxide is widely used in the national economy, and many industrial departments need sodium hydroxide. When used, the departments with more sodium hydroxide are the manufacturing of chemicals, followed by papermaking, aluminum smelting, tungsten smelting, rayon, artificial cotton and soap manufacturing.
另外，在生产染料、塑料、药剂及有机中间体，旧橡胶的再生，制金属钠、水的电解以及无机盐生产中，制取硼砂、铬盐、锰酸盐、磷酸盐等，也要使用时大量的烧碱。同时氢氧化钠是生产聚碳酸酯、超级吸收质聚合物、沸石、环氧树脂、磷酸钠、亚硫酸钠和大量钠盐的重要原材料之一。
In addition, in the production of dyes, plastics, pharmaceuticals and organic intermediates, the regeneration of old rubber, the electrolysis of metal sodium and water and the production of inorganic salts, a large amount of caustic soda should also be used in the production of borax, chromium salt, manganate, phosphate, etc. At the same time, sodium hydroxide is one of the important raw materials for the production of polycarbonate, super absorbent polymer, zeolite, epoxy resin, sodium phosphate, sodium sulfite and a large number of sodium salts.

固体氢氧化钠装入0.5毫米厚的钢桶中严封，每桶净重不超过100 公斤;塑料袋或二层牛皮纸袋外全开口或中开口钢桶;螺纹口玻璃瓶、铁盖压口玻璃瓶、塑料瓶或金属桶(罐)外普通木箱;螺纹口玻璃瓶、塑料瓶或镀锡薄钢板桶(罐)外满底板花格箱、纤维板箱或胶合板箱;镀锡薄钢板桶(罐)、金属桶(罐)、塑料瓶或金属软管外瓦楞纸箱。包装容器要完整、密封，有明显的“腐蚀性物品”标志。 氢氧化钠对玻璃制品有轻微的腐蚀性，两者会生成硅酸钠，使得玻璃仪器中的活塞黏着于仪器上。
The solid sodium hydroxide shall be put into a 0.5mm thick steel barrel and sealed tightly, and the net weight of each barrel shall not exceed 100kg; Full opening or medium opening steel drum outside plastic bag or two-layer kraft paper bag; Threaded glass bottles, iron capped pressure glass bottles, plastic bottles or ordinary wooden cases outside metal barrels (cans); Threaded glass bottles, plastic bottles or tinned sheet steel barrels (cans) are covered with bottom plate lattice boxes, fiberboard boxes or plywood boxes; Tinned steel sheet barrel (can), metal barrel (can), plastic bottle or metal hose outer corrugated box. The packaging container shall be complete and sealed with obvious signs of "corrosive goods". Sodium hydroxide is slightly corrosive to glass products. Both will produce sodium silicate, making the piston in the glass instrument stick to the instrument.
因此盛放氢氧化钠溶液时不可以用玻璃瓶塞，否则可能会导致瓶盖无法打开。铁路运输时，钢桶包装的可用敞车运输。起运时包装要完整，装载应稳妥。运输过程中要确保容器不泄漏、不倒塌、不坠落、不损坏，防潮防雨。如发现包装容器发生锈蚀、破裂、孔洞、溶化淌水等现象时，应立即更换包装或及早发货使用时，容器破损可用锡焊修补。
The bottle cap cannot be opened when the sodium hydroxide solution is put into the bottle, otherwise the bottle cap may not be opened. During railway transportation, the steel drum can be transported by gondola. The package shall be complete and the loading shall be stable at the time of shipment. During transportation, ensure that the container does not leak, collapse, fall, damage, moisture and rain. If the packaging container is found to be rusted, broken, porous, melted and dripping, the packaging shall be replaced immediately or shipped as soon as possible. When used, the damaged container can be repaired by tin welding.
储存于阴凉、通风的库房。远离火种、热源。 密闭操作，加强通风。操作人员必须经过专门培训，严格遵守操作规程。建议操作人员佩戴自吸过滤式防尘口罩，戴化学安全防护眼镜，穿防毒物渗透工作服，戴橡胶手套。避免产生粉尘。搬运时要轻装轻卸，防止包装及容器损坏。配备泄漏应急处理设备。使用时或者搬运时操作者佩戴劳保用品。
Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. Closed operation and enhanced ventilation. Operators must receive special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety glasses, anti poison penetration work clothes and rubber gloves. Avoid dust generation. The containers shall be handled with care to prevent damage. Equipped with leakage emergency treatment equipment. The operator shall wear labor protection articles during use or handling.