含量 98(%) 粒度 60(目)
执行质量标准 国标 品牌 金誉 【分子式】: Na3PO4·12H2O
【分子量】: 380.14
【执行标准】:HG/T2517-93
【性质】:
磷酸三钠为白色或微黄色结晶,不溶于乙醇和二硫化碳,水溶液呈碱性,对人体皮肤有一定侵蚀作用。1%水溶液PH值为12.1,在干燥的空气中易风化。在100°C时即失去十一个结晶水,212°C以上时即变为无水物Na3PO4,能与酸或钙,镁,铁的盐类起复分解反应。
【用途】:主要用作水的软化剂,锅炉清洁剂。也用作金属防锈剂,染料中间体的干燥剂,照相显影剂,织物丝光增强剂。
【技术指标】:主含量 ≥ 98.0 %
指标名称 |
指标 |
工业级 | |
外观 |
白色粒状晶体 |
主含量 % ≥ |
98.0 |
五氧化二磷(以P2O5计), % ≥ |
18.3 |
甲基橙碱度(以Na2O计), % ≥ |
15.5-19 |
水不溶物, % ≤ |
0.1 |
硫酸盐(以SO4计) % ≤ |
0.5 |
氯化物(以Cl计) % ≤ |
1.5 |
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