Overview
Sodium hydroxide solution is an aqueous preparation of sodium hydroxide (NaOH), typically available in concentrations ranging from 30% to 50% by weight. As one of the most important industrial chemicals, it serves as a strong base in numerous chemical processes. The solution form offers handling advantages over solid NaOH, particularly in continuous processes where precise dosing is required. In commercial applications, sodium hydroxide solution is preferred for its ready-to-use nature and reduced dust hazards compared to solid flakes or pearls. The solution's concentration is a critical specification that determines its reactivity, transportation requirements, and storage conditions.
Physical and Chemical Properties
Sodium hydroxide solutions are characterized by their high alkalinity, typically exhibiting pH values above 13 for commercial concentrations. The solutions demonstrate a marked increase in viscosity at higher concentrations and lower temperatures. A 50% solution has approximately 50% higher viscosity than water at 20°C. The solutions are strongly exothermic when diluted or mixed with acids, requiring careful temperature control in industrial applications. Sodium hydroxide solutions absorb carbon dioxide from air, gradually forming sodium carbonate, which necessitates proper container sealing. The freezing point depression is significant - a 50% solution freezes at about 12°C, affecting storage requirements in cold climates.
Main Applications
In the chemical industry, sodium hydroxide solution is fundamental for pH adjustment, neutralization reactions, and as a reactant in producing various chemicals including soaps, detergents, and organic compounds. The pulp and paper industry consumes large quantities for the kraft process in wood pulping. Water treatment plants utilize sodium hydroxide solution for pH correction and heavy metal precipitation. In food processing, it serves for cleaning and sanitation (CIP systems), and in the production of products like pretzels and olives. The petroleum industry uses it for refining processes and as a drilling fluid additive.
Safety and Storage
Sodium hydroxide solution requires careful handling due to its corrosive nature. Appropriate personal protective equipment (PPE) including chemical-resistant gloves, face shields, and protective clothing is mandatory. Emergency eyewash stations and safety showers must be accessible in areas where the solution is handled. Storage containers must be compatible with strong alkalis - high-density polyethylene (HDPE) or stainless steel (grade 304 or 316) are commonly used. The solution should be stored in cool, well-ventilated areas away from acids and moisture-sensitive materials. Containers should be kept tightly closed to prevent carbon dioxide absorption and concentration changes due to evaporation.
B2B Procurement Guide
When procuring sodium hydroxide solution, specify the required concentration (typically 30%, 50%, or custom), purity grade (technical, food, or reagent), and packaging requirements. Bulk purchases (tanker trucks or isotanks) offer cost advantages for large-scale users, while intermediate bulk containers (IBCs) or drums suit smaller operations. Evaluate suppliers for reliable logistics and handling capabilities, as the solution requires specialized transport equipment. Consider proximity to minimize transportation costs and risks. Request material safety data sheets (MSDS) and certificates of analysis (CoA) to ensure product quality and compliance with industry standards.
Related Manufacturers
- 主营：玉米浆干粉、黄金选矿剂、次氯酸钠、氢氧化钠、液碱、氨水、乙醇、亚硫酸氢钠、氨基磺酸、漂白粉、氢氧化钾、亚氯酸钠、硅酸钠、尿素、次氯酸钙、碳酸钠、偏硅酸钠、冰醋酸、异丙醇、二氯甲烷、氟硅酸钠、亚硝酸钠
- 主营：磷酸、水玻璃、次氯酸钠、软水盐、草酸、碳酸钾、聚合氯化铝、氨水、甲酸、二氯甲烷、液碱、片碱、三氯乙烯、漂白粉、铬酸酐、乙酸乙酯、戊二醛、亚硝酸钠、石墨烯、硫酸铜、四氯乙烯、多聚甲醛、二甲基甲酰胺、甲缩醛
- 主营：氨水、液碱、次氯酸钠、除垢剂、泡花碱、郯化阳煤漂白粉、氨水运输、液碱运输、阻垢剂、水玻璃、84消毒液、K12、柠檬酸、片碱
- 主营：片碱、液碱、苛性钠、氢氧化钠、片状氢氧化钠、烧碱
- 主营：清洗剂、缓蚀剂、聚合氯化铝、氢氧化钠、氟化氢铵、磷酸
- 主营：片碱、工业片碱、火碱、氢氧化钠、工业级氢氧化钠、君正氢氧化钠、中泰氢氧化钠、滨化氢氧化钠、烧碱、粒碱、金属处理助剂、工业碱、中泰片碱、内蒙古片碱、中天纯碱、骏化纯碱、99片碱、滨化粒碱、工业火碱、工业烧碱
- 主营：胶囊破胶剂、过硫酸铵、过硫酸钠、过硫酸钾、淀粉、乙二醇、乙酸钠、异丙醇、苯乙烯、石油化工、助剂原料
- 主营：氨基磺酸、亚氯酸钠、速凝剂、氨水、液碱、脱硝剂、乙醇、次氯酸钠、无水乙醇、草酸、漂白粉、漂粉精、碳酸氢铵、亚硫酸氢钠、二甲基亚砜、二甲基甲酰胺、硼酸、大苏打、冰醋酸、柠檬酸
- 主营：小白盐、工业盐、苛性钠、氢氧化钠、工业级片状氢氧化钠、工业级氢氧化钠、片状氢氧化钠、工业氢氧化钠、热敷颗粒、工业日晒海盐、锅炉发电燃料、工业级片状火碱、道路工业融雪盐、快速融雪除冰剂、片碱、融雪剂、工业级片碱、片状火碱、火碱、工业片碱、大粒盐、颗粒盐、氯化钠、君正片碱、烧碱
- 主营：氨水、液碱、次氯酸钠、工业级氢氧化钠、二甲苯、酒精、三氯乙烯、二氯甲烷、二甲基甲酰胺dmf、乙二醇丁醚、甲缩醛、正丁醇、无水乙醇、精甲醇、6#120#溶剂油、碳酸二甲酯、95.无水乙醇、醋酸钠、片碱、乙二醇单丁醚、防冻液、醋酸乙酯、石油醚、氯化亚砜、甲醇、硫酸铵
- 主营：玻璃陶瓷、清洗饲料、工业清洗、肥料水产、食用添加剂
- 主营：食品级液碱、食品级片碱、氢氧化钾、32%液体氢氧化钠、液体氢氧化钠、食品级氢氧化钠、固体氢氧化钠、氢氧化钠片碱、氢氧化钠、双氧水、工业酒精、槽车运输、工业硫酸、食品级盐酸、工业级盐酸、聚合氯化铝、一水柠檬酸、食品级酒精、铁桶装、乙酸乙酯、工业级硼砂、液碱、醋酸乙酯、工业级液碱、甲醇
- 主营：双氧水、次氯酸钠、液碱、氢氧化钠、氨水、亚硝酸钠、苯甲酸钠、正丙醇、异丙醇、四氯乙烯、片碱、二氯甲烷、冰醋酸、甲酸、乙酸乙酯、乙醇、焦亚硫酸钠、磷酸、漂白粉、氢氧化铵
- 主营：次氯酸钠、铝溶胶、乙二醇、液体泡花碱、氢氧化钠、甲基硅酸、三乙醇胺、二甲基亚砜、液碱、蒸馏水去离子水、二氯甲烷、软水盐、DMF、二甲基甲酰胺、聚乙二醇200、400、600、水玻璃、乙醇、甲酸、草酸、大苏打、冰醋酸、苯酚、氨水
- 主营：片碱、烧碱、君正片碱、氢氧化钠、亿利片碱、天工片碱、天业片碱、中泰片碱、出口片碱、出口粒碱、优固邦片碱、中盐片碱、食品级片碱、宜化片碱、新疆宜化片碱、工业片碱、工业粒碱
- 主营：消毒剂、酸度调节剂、工业清洗溶剂、可分装无色液体、工业级氢氧化铵、二甲基亚砜、异丙醇、苯酚、次氯酸钠、乙醇、液碱、磷酸、甲酸、甲醇、乙酸乙酯、三乙胺、二甲基甲酰胺、二氯甲烷、氨水、冰醋酸、过硫酸钠、二甲苯
- 主营：漂白还原剂
- 主营：保鲜剂、活性炭、色素炭黑、氢氧化钠、洗涤原料、优级白砂糖、速溶硅酸钠、锅炉水处理、表面活性剂、聚合氯化铝、机油过滤砂、食品级防腐剂、工业级醋酸钠、玻璃钢用炭黑、净水处理絮凝剂