|
五氧化二磷（ P 2 O 5 ）
·五氧化二磷是在过量氧气存在下燃烧元素磷得到的白色、微晶体轻质粉末。
·五氧化二磷是化学工业中常用的基础原料和试剂。
·五氧化二磷是正磷酸（ H 3 PO 4 ）的酸酐。它极易吸潮并被水通过中间阶段转化成 H 3 PO 4 ，与水的反应非常活泼并伴随产生大量的热。
· 规格和质量指标 ：
项目 |
指标 |
分析纯 |
化学纯 |
工业级 |
含量 %≥ |
99.0 |
99.0 |
98.0 |
澄清度试验 |
合格 |
--- |
水不溶物 %≤ |
0.02 |
0.02 |
总氮量 %≤ |
0.002 |
0.010 |
还原物质 ( 以 P 2 O 3 计 ) %≤ |
0.01 |
0.02 |
含铅量 %≤ |
0.002 |
0.010 |
含砷量 %≤ |
0.002 |
0.010 |
含铁量 %≤ |
0.002 |
0.010 |
·五氧化二磷可用于生产特殊的基于磷酸的催化剂。
·五氧化二磷可用于生产特殊的磷酸钠和磷酸铵。
·不同级别的超磷酸和聚磷酸可由五氧化二磷与磷酸混合制备。
·五氧化二磷在生产透明树脂中可作无色缩合剂或固化剂。
·五氧化二磷可用于生产磷酸单酯 / 二酯，磷酸与合适的醇或酚直接反应产生酸性酸酯，五氧化二磷与烷基胺反应放出磷酸烷基胺。由于强烈的吸湿性，五氧化二磷可用作干燥剂。
·五氧化二磷可用作生产吹制氧化沥青的催化剂，沥青的催化剂。沥青的黏度性质得到改善，使得沥青在高温时的流动性减少而低温时的粘弹性增加。
发货规格 :
包装形式 |
包装重量（净重） |
编织袋装 |
30kg 20kg 15kg 10kg 5kg |
铁桶装 |
150kg 200kg |
瓶装 |
2kg 1kg |
其它尺寸，形式的包装可应客户要求下提供，五氧化二磷在欧洲只能以铲板完整装运并避免受潮，在密闭桶中可储存 12 个月。
Phosphorous Pentoxide(P 2 O 5 )
? P 2 O 5 is a kind of light white minicrystal powder which is made by burning phosphorus with excess oxygen.
? P 2 O 5 is a basic material and reagent often used in chemical industry.
? Phosphorous acid is the acid anhydride of orthophosphoric acid (H 3 PO 4 ). It can easily absorb moisture and then be transformed into H 3 PO 4 by water. When reacting with water, it can produce lots of heat.
? Specifications & Technical Data:
Item |
Index |
Analytic pure |
Chemical pure |
Industrial grade |
Assay % ≥ |
99.0 |
99.0 |
98.0 |
Clearity test |
OK |
--- |
Water insoluble matter % ≤ |
0.02 |
0.02 |
Total N % ≤ |
0.002 |
0.010 |
Reduced ( as P 2 O 3 ) % ≤ |
0.01 |
0.02 |
Pb % ≤ |
0.002 |
0.010 |
As % ≤ |
0.002 |
0.010 |
Fe % ≤ |
0.002 |
0.010 |
? P 2 O 5 can be used to make special catalyst based on phosphoric acid.
? P 2 O 5 can be used to make special sodium phosphate and ammonia phosphate.
? Super phosphoric acid and poly phosphoric acid can be made by mixing P 2 O 5 and phosphoric acid.
? P 2 O 5 can be used as colorless condensating agent or firming agent in making transparent resin.
? P 2 O 5 can be used to manufacture phosphate mono ester and phosphodiester. Phosphoric acid will produce acid ester if directly reacting with appropriate alcohol or phenol. P 2 O 5 can give off phosphorous alkylamine if reacted with alkylamine. Due to its hygroscopicity, P 2 O 5 can be used as drying agent.
? P 2 O 5 can be used as the catalyst for making blown bitumen as well as for bitumen. It can improve the viscosity of bitumen.
? Specifications for Delivery
Packing |
Net Weight |
Woven bag |
30kg 20kg 15kg 10kg 5kg |
Iron drum |
200kg |
Bottle |
2kg 1kg |
It can also be packed according to client's requirements. P 2 O 5 can only be loaded with blade and avoid moisture in delivery in Europe . It can be kept for 12 months in sealed drum.
|