Overview
Sodium hypophosphite (NaPO2H2) is an inorganic compound primarily used as a reducing agent in industrial processes. It is a white crystalline solid with high solubility in water. The compound is valued for its ability to reduce metal ions, making it indispensable in electroless plating and other chemical applications. First synthesized in the 19th century, sodium hypophosphite has evolved into a critical chemical for modern industries. Its stability and effectiveness as a reducing agent have led to widespread adoption in sectors ranging from electronics to water treatment.
Physical and Chemical Properties
Sodium hypophosphite is characterized by its high solubility in water and hygroscopic nature. It decomposes at temperatures above 90°C, releasing phosphine gas, which requires careful handling. The compound acts as a strong reducing agent, capable of reducing nickel ions in electroless plating baths. Its molecular structure includes a phosphorus atom bonded to hydrogen and oxygen, contributing to its reactivity. The density of 1.77 g/cm³ and crystalline form make it easy to handle in industrial settings, though moisture exposure must be minimized to prevent clumping.
Main Applications
The primary use of sodium hypophosphite is in electroless nickel plating, where it reduces nickel ions to form a uniform metal coating without electricity. This process is vital for aerospace, automotive, and electronics industries due to its corrosion resistance and wear properties. Other applications include its role as a stabilizer in pharmaceuticals, a reducing agent in water treatment, and a food additive (E339). Its ability to inhibit oxidation makes it valuable in chemical synthesis and polymer production.
Safety and Storage
Sodium hypophosphite poses moderate health risks, including skin and eye irritation. Inhalation of dust should be avoided, and PPE (gloves, goggles) is recommended during handling. It is incompatible with strong oxidizers, as reactions can release toxic phosphine gas. Storage requires a cool, dry environment in sealed containers to prevent moisture absorption. Bulk storage areas should be well-ventilated and equipped with fire suppression systems due to its decomposition risks at high temperatures.
B2B Procurement Guide
When procuring sodium hypophosphite, prioritize suppliers with ISO or equivalent certifications to ensure quality. Key specifications include purity (≥98% for industrial use), particle size, and absence of heavy metal contaminants. Purchasing in bulk (25 kg bags or drums) typically reduces costs, but verify packaging integrity to prevent moisture damage. Regional pricing varies; Chinese suppliers often offer competitive rates, while European/US sources may provide higher purity grades for niche applications.
Related Manufacturers
- 主营：异硫氰酸胍、四氢呋喃、乙腈、SPhosPdG1、正庚烷、金属催化剂、阻燃剂、醋酸钇、硝酸锰、环辛醇、胆固醇、碳酸镧、碳酸镍、肉桂醛、碳酸镉、肉桂酸、戊二醛、氯化锂、硫化钠、醋酸钕、柠檬油、碘乙腈
- 主营：发热板、甘氨酸、阻燃剂、abs树脂、深铬黄、胶黏剂、十八酸、正癸酸、羊脂酸、锂电池、光电极、消泡剂、丙酸铵、珠光片、油墨涂、赖氨酸、消光剂、水镁石、稀释剂、酸性红、羟乙基、梧桐胶、黄蜂蜡、铝钙石、脂肪酶
- 主营：硫磺粉末
- 主营：SPhosPdG3、金属催化剂
- 主营：ELISA、分光光度法、微量法、ELISA试剂盒、大鼠试剂盒、小鼠试剂盒、人试剂盒、植物试剂盒、酶联免疫法、MEGAZYME、大鼠ELISA试剂盒、小鼠ELISA试剂盒、人ELISA试剂盒、植物ELISA 试剂盒、白介素试剂盒、细胞因子试剂盒、激素试剂盒、科研试剂盒、化学试剂、检测试剂盒、土壤试剂盒、土壤酶活性检测
- 主营：叔碳酸、十八醛、溶菌酶、Xphos、海藻糖、癸二醇、氨基丙基、氢路噻嗪、邻苯二甲、乙基碳二、羟基癸酸、正十七烷、谷胱甘肽、烷二甲醇、松果体素、vc磷酸酯镁、2-甲基丁醛、朱栾倍半萜、丁烷四乙酸、表面活性剂、癸烷撑二醇、缩水甘油邻、10-羟基羊蜡酸、氢氯噻嗪杂质、盐酸邻菲罗啉、壳聚糖季铵盐
- 主营：异辛醇、乳化剂、乙烯醚、phos、醚羧酸、脂肪醇、分散剂、染色助剂、聚乙二醇、异构醇醚、泊洛沙姆、椰油酰胺、基羟乙基、烷基糖苷、特辛基酚、聚氧乙烯、嵌段聚醚、单油酸酯、异构十三醇、丙烯磺酸钠、氢化蓖麻油、丙烯酰胺基、醇醚葡糖苷、低泡渗透剂、甲酯乙氧基、癸基葡糖苷
- 主营：减磨剂、防锈剂、添加剂、phos、润滑剂、抗腐剂、丙烯酸、抗氧剂、改进剂、清净剂、极压剂、色墨油墨、金属钝化剂、无灰分散剂、聚氨酯乳液、聚氨酯树脂、复合油墨树脂、高分子化合物、润滑脂拉丝剂、润滑油破乳剂、膜强度增强剂、润滑油增稠剂、润滑脂增粘剂、导热油复合剂、硫化烷基酚钙、活塞环释放剂
- 主营：乙酸镁、阻燃剂、热熔胶、phos、聚合物、锂电池、光电极、泡泡糖、氯丁胶、碳酸镉、新癸酸、补差价、稀释剂、羟乙基、氧化铝、氧化铜、甲酸钾、c/c材料、碳酸锰、玻璃粉、硬光油、防腐剂、氧化铋、防水剂、聚丙烯、增粘树
- 主营：Elisa试剂盒、生化试剂盒、蛋白试剂盒、细胞试剂盒
- 主营：凉味剂、除氧剂、防老剂、柔顺剂、抗氧剂、保湿剂、珠光片、丙二酸钠、丙烯酸锌、氟甲基苯、异辛酸锌、十二烷基、2四油酸酯、优级福美钠、农药中间体、彩色显影剂、氢化蓖麻油、高效阻聚剂、固化促进剂、甲基乙二醇、优级有机硅、缓蚀阻垢剂、复合型乳液、氧基铝酸酯、三氟甲氧基
- 主营：Xphos、全氟三丁胺、硅树脂、医药中间体
- 主营：中间体、尿囊素、肉豆蔻酸异丙酯、烯丙基羟乙基醚、苄基三乙基氯化铵、马来酸、乙酰苯肼、椰油基三甲基氯化铵
- 主营：人ELISA试剂盒、大鼠ELISA试剂盒、生化法检测试剂盒、分子学检测试剂盒、植物ELISA试剂盒、鱼ELISA试剂盒
- 主营：SPhosPdG2、白蜡树素、百两金素、半齿泽兰素