| 磷酸三钠 化学式：Na3PO4·12H2O
分子量：380.14
执行标准：HG/T2517-93
性 状：外观为白色或无色粒状结晶，易风化，易溶于水，不溶于有机溶剂，水溶液呈碱反应，1%水溶液pH值为12.1，相对密度1.62，熔点73.4℃。
技术指标： 序号 | 指标名称 | Na3PO4 | Na3PO4·12H2O | 工业级 | 食品级 | 工业级 | 食品级 | 1 | 主含量 %≥ | 98.0 | 98.0 | 98.0 | 98.0 | 2 | P2O5 %≥ | 42.4 | 42.4 | 18.3 | 18.3 | 3 | 氯化物（以Cl计） %≤ | - | - | 1.5 | 0.3 | 4 | 甲基橙碱度（以Na2O计）% | 36-40 | 36-40 | 15.5-19 | 15.5-19.0 | 5 | 硫酸盐 %≤ | - | 0.25 | 0.5 | 0.5 | 6 | 重金属（以Pb计） %≤ | - | 0.001 | - | 0.001 | 7 | 砷（以As计） %≤ | - | 0.0003 | - | 0.0003 | 8 | 氟化物（以F计） %≤ | - | 0.002 | - | 0.002 | 9 | 水不溶物 %≤ | 0.10 | 0.10 | 0.10 | 0.05 |
用 途：用于软水处理、日用化工、电镀磷化、印染固色、搪瓷助熔及制革脱脂等。
包 装：内塑外编，每袋净重25、50、1000Kg，贮于通风干燥处。 Product characteristics and USES Trisodium phosphate Chemical formula: Na3PO4 12 h2o Molecular weight: 380.14 Execution standard: HG/T2517-93 Sexual shape, appearance for white or colorless granular crystal, easy weathering, soluble in water, insoluble in organic solvent, aqueous solution is alkaline reaction, 1% aqueous solution pH value of 12.1, relative density 1.62, melting point is 73.4 ℃. Technical indicators: The serial number Metric names Na3PO4 Na3PO4 12 h2o Industrial grade Food grade Industrial grade Food grade 1 The main content % p 98.0 98.0 98.0 98.0 2 P2O5 % p 42.4 42.4 18.3 18.3 3 Chloride (Cl) % or less - - 1.5 0.3 4 Methyl orange alkalinity (by Na2O) % 36 to 40 36 to 40 15.5-19 15.5 to 19.0 5 Sulfate % or less - 0.25 0.5 0.5 6 Heavy metal (Pb) % or less - 0.001 - 0.001 7 Arsenic (As) % or less - 0.0003 - 0.0003 8 Fluoride (F) % or less - 0.002 - 0.002 9 Water insolubles % or less 0.10 0.10 0.10 0.05 Use: used for water softening, daily chemical, electroplating, phosphating, solid color printing and dyeing, enamel melt and leather degreasing etc. Outside package installs: plastic inside, 25, 50, 1000 kg net weight for each bag, store in ventilated dry place.
|