磷酸三钠 (CAS No.15475-67-9)
- 物化性质
- 无色至白色针状结晶或结晶性粉末，十二水合物为无色透明晶体。易溶于水，水溶液呈强碱性（pH约11.5~12.1），不溶于乙醇、二硫化碳等有机溶剂。在干燥空气中易潮解风化，生成磷酸二氢钠和碳酸氢钠。加热至55~65℃形成十水物，60~100℃形成六水物，100℃以上成为一水物，212℃以上成为无水物。
- 技术参数
- 纯度≥98% 外观为无色至白色针状结晶或结晶性粉末 水溶液pH值约为11.5~12.1 易溶于水，不溶于乙醇、二硫化碳等有机溶剂 25kg/袋包装
English description（英文原文，共 1402 字符）
Product Name:Sodium phosphite
English Name:Sodium phosphite
CAS No.:15475-67-9
Aliases:Phosphonic acid sodium salt, Sodium phosphite salt
Molecular Formula:Na2HPO3·5H2O
Physical Properties:Colorless to white needle-like crystals or crystalline powder; the dodecahydrate forms colorless transparent crystals. Freely soluble in water, the aqueous solution is strongly alkaline (pH approximately 11.5~12.1). Insoluble in ethanol, carbon disulfide and other organic solvents. It readily deliquesces and effloresces in dry air, forming monosodium phosphate and sodium bicarbonate. Upon heating, it converts to the decahydrate at 55~65°C, hexahydrate at 60~100°C, monohydrate above 100°C, and anhydrous form above 212°C.
Uses:Widely used in chemical, textile, printing and dyeing, papermaking and power generation industries as a water softener and detergent, as well as boiler scale inhibitor, water softener for paper dyeing, pH buffer for gloss paper adhesives, color fixing agent in printing and dyeing, mercerizing enhancer for fabrics, and anti-brittleness agent for threads. It also serves as a reducing agent and phosphating agent in chemical synthesis.
Technical Specifications:
Purity ≥ 98%
Colorless to white needle-like crystals or crystalline powder
pH of aqueous solution approximately 11.5~12.1
Freely soluble in water; insoluble in ethanol and carbon disulfide
Packed in 25 kg/bag
English Name:Sodium phosphite
CAS No.:15475-67-9
Aliases:Phosphonic acid sodium salt, Sodium phosphite salt
Molecular Formula:Na2HPO3·5H2O
Physical Properties:Colorless to white needle-like crystals or crystalline powder; the dodecahydrate forms colorless transparent crystals. Freely soluble in water, the aqueous solution is strongly alkaline (pH approximately 11.5~12.1). Insoluble in ethanol, carbon disulfide and other organic solvents. It readily deliquesces and effloresces in dry air, forming monosodium phosphate and sodium bicarbonate. Upon heating, it converts to the decahydrate at 55~65°C, hexahydrate at 60~100°C, monohydrate above 100°C, and anhydrous form above 212°C.
Uses:Widely used in chemical, textile, printing and dyeing, papermaking and power generation industries as a water softener and detergent, as well as boiler scale inhibitor, water softener for paper dyeing, pH buffer for gloss paper adhesives, color fixing agent in printing and dyeing, mercerizing enhancer for fabrics, and anti-brittleness agent for threads. It also serves as a reducing agent and phosphating agent in chemical synthesis.
Technical Specifications:
Purity ≥ 98%
Colorless to white needle-like crystals or crystalline powder
pH of aqueous solution approximately 11.5~12.1
Freely soluble in water; insoluble in ethanol and carbon disulfide
Packed in 25 kg/bag
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常见问题
- 磷酸三钠的 CAS 号是多少？
- 磷酸三钠的 CAS 号是 15475-67-9。
- 磷酸三钠的分子式和分子量是什么？
- 磷酸三钠的分子式为 Na2HPO3·5H2O。
- 磷酸三钠的英文名称是什么？
- 磷酸三钠的英文名称为 Sodium phosphite。
- 磷酸三钠还有哪些别名？
- 磷酸三钠又称 膦酸钠盐、亚磷酸钠盐。
- 磷酸三钠有哪些供应商和生产厂家？
- 掌上化工当前收录 1 条磷酸三钠供应报价，来自 1 家供应商，可按地区、纯度、级别筛选对比。
- 磷酸三钠的供应商主要分布在哪些地区？
- 磷酸三钠的供应商主要分布在 上海市（1 条） 等地。
- 磷酸三钠有哪些级别可选？
- 平台上磷酸三钠的供应级别包括 工业级。
- 磷酸三钠的报价单位是什么？
- 磷酸三钠的报价单位主要有 千克。
- 哪里可以查到磷酸三钠的价格？
- 掌上化工磷酸三钠产品页汇总了各供应商的最新报价与规格，地址：/chemicals/15475-67-9/。部分供应商价格为电议，可通过页面上的询价功能直接获取。
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