物化性质:
通常为白色极易潮解的结晶性粉末。密度0.9g/cm3,在300℃升华。熔点580-585℃。蒸气压133.3Pa(384℃)。在加压下加热到较高温度时,晶体转变为无定形玻璃状体,在空气中易吸潮。溶于水发出热量及白烟。
规格和质量指标:
项目 |
指标 |
||
化学纯 |
分析纯 |
特定级 |
|
含量(P2O5)% |
≥99% |
≥99.5% |
≥99.5% |
活性R值 |
1.2 |
1.7 |
2.0 |
还原物(以P2O3计)% |
≤0.02 |
≤0.01 |
≤0.01 |
澄清度试验 |
合格 |
合格 |
合格 |
水不溶物% |
≤0.02 |
≤0.02 |
≤0.02 |
总氮量(N)% |
≤0.01 |
≤0.002 |
≤0.002 |
重金属以(Pb计)% |
≤0.01 |
≤0.002 |
≤0.002 |
铁含量(Fe)% |
≤0.01 |
≤0.002 |
≤0.001 |
砷含量(As)% |
≤0.01 |
≤0.005 |
≤0.0025 |
P2O5CAS号:1314-56-3
P2O5分子式: P2O5
P2O5英文名称: Phosphorus pentoxide
P2O5英文同义词: Phosphoric anhydride; Phosphorus(V) oxide; phosphorus pentoxidedessicant; Phosphorous Pentoxide; Phosphorus pentoxide 99+ % for analysis; diphosphorus pentaoxide; PhosphorusVoxideACSwhitepowder; Phosphorusoxidewhitepowder; Phosphoric Pentoxide; P2O5; phosphoric acid; diphosphoric acid; tricyclo[3.3.1.1~3,7~]tetraphosphoxane 1,3,5,7-tetraoxide; 1,3-dioxodiphosphoxane-1,3-diium-1,3-diolate
P2O5EINECS号: 215-236-1
P2O5分子量: 141.9445