Phosphorus(V) oxide 五氧化二磷

CAS 1314-56-3 MFCD00011440

化学结构图

1314-56-3
SMILES: O=P(=O)OP(=O)=O

化学属性

Mol. FormulaH2O5P2
Mol. Weight141.94
Density2.3
Melting Point340
TSCAYes
Boiling Point360°C(lit.)
SolubilitySoluble in H2SO4. Insoluble in acetone, and NH3.
Stability对湿度和空气敏感
Flash Point340-360°C
Refractive index1.433-1.436

别名和识别编码

Chemical NamePhosphorus(V) oxide
Synonym Diphosphorus pentaoxide {LY} Diphosphorus pentaoxide Diphosphorus pentaoxide (P2O5) EATON'S REAGENT PHOSPHORUS ANHYDRIDE PHOSPHORUS OXIDE PHOSPHORUS(+5)OXIDE Phosphor(V)-oxid Phosphoric acid anhydride Phosphoric anhydride Phosphoric oxide Phosphoric pentoxide Phosphorous pentoxide Phosphorpentoxid Phosphorsäureanhydrid Phosphorus pentaoxide Phosphorus(V) oxide Sicapent di-Phosphorpentoxid {} {LY} Diphosphorus pentaoxide {} {} {LY} Diphosphorus pentaoxide {} {} {} {LY} Diphosphorus pentaoxide {} {} {} {} {LY} Diphosphorus pentaoxide {} {} {} {} {} {LY} Diphosphorus pentaoxide {} {} {} {} {} {} {LY} Diphosphorus pentaoxide {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {LY} Diphosphorus pentaoxide {} {} {} {} {} {} {} {} {LY} Di
CAS Number1314-56-3
EC Number215-236-1
Beilstein Registry Number2384789
MDL NumberMFCD00011440
Merck Number7355
Chemical Name Translation五氧化二磷
PubChem Substance ID24867015
Reaxys-RN11323962
Wiswesser Line Notation.P2..O5
LabNetwork Molecule IDLN00193495
Canonical SMILESO=P([O])([O])P(=O)=O
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分类

  • {uni_hamburg} no charge; 1fragment

产品应用

  • A dehydrating agent employed as a dessicant.

相关文献及参考

  • For use of P2O5 in the formation of TMS polyphosphate, see Hexamethyl­disiloxane, A11848. See also Eaton's Reagent, L15607.
  • {
  • Reaction with ether in chloroform gives polyphosphoric ester, PPE: Biochem. Biophys. Acta., 80, 1 (1964). The chloroform solution is mobile and useful for dehydrations such as: The Bischler-Napieralski reaction (see 2-Phenyl­ethyl­amine, A13402), and related reactions: Tetrahedron Lett., 2419 (1964); the Fischer indole synthesis (see Phenyl­hydrazine, A11246): Chem. Ind. (London), 473 (1965); the direct, high-yield formation of thiocarboxylic esters by reaction between the carboxylic acid and the thiol: Synthesis, 134 (1982).
  • Merck: 14,7355
  • Short: III/7b1
  • For use with Dimethoxymethane, A12055, in the protection of alcohols as their methoxymethyl (MOM) ethers, avoiding the carcinogenic chloromethyl methyl ether, see: Synthesis, 276 (1975); Org. Synth. Coll., 9, 539 (1998).
  • One of the most efficient drying agents which is used in various dehydrations and related reactions.
  • Several lower viscosity alternatives to the useful dehydration and cyclization agent polyphosphoric acid (PPA) can be prepared from phosphorus pentoxide:
  • Short: III/27F3

安全信息

Signal word Danger
GHS Symbol
WGK Germany1
Safety Statements
  • S22 Do not breathe dust 不要吸入粉尘;
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后,立即用大量水冲洗并征求医生意见;
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护;
  • S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时,立即求医(可能时出示标签);
Risk Statements
  • R35 Causes severe burns 会导致严重灼伤
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
Precautionary statements
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P284 Wear respiratory protection.? 佩戴呼吸保护装置。
  • P301+P330+P331
  • P303+P361+P353+P310+P363
  • P304+P340+P310
  • P305+P351+P338
  • P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
  • P405 Store locked up. 上锁保管。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
RTECSTH3945000
Packing GroupII
UN Number 1807
Storage condition Store at room temperature {LY} Store at room temperature {} {LY} Store at room temperature {} {} {LY} Store at room temperature {} {} {} {LY} Store at room temperature {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}
Hazard Codes 8
Hazard Class8
Hazard statements
  • H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
Warnings 危化品目录(2015)
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 1689 mg/m3/1H
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Lungs, Thorax, or Respiration - other changes
   Blood - hemorrhage
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 1,140,1981

TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1217 mg/m3/1H
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Lungs, Thorax, or Respiration - other changes
   Blood - hemorrhage
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 1,140,1981

TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 271 mg/m3/1H
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Lungs, Thorax, or Respiration - other changes
   Blood - hemorrhage
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 1,140,1981

TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 61 mg/m3/1H
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Lungs, Thorax, or Respiration - other changes
   Blood - hemorrhage
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,

Restrict 危险品

其他信息

  • 用途一:用于制造高纯度磷酸、磷酸盐类和磷酸酯的原料。用作气体和液体的干燥剂和有机合成的脱水剂。还用于生产医药品、农药、表面活性剂等。
  • 有祘的气味,有毒。不纯品为黄色粉末。极易吸湿,360℃升华,不燃烧。能溶于水产生小量热并生成磷酸,对乙醇的反应与水相似。可局部刺激皮肤、粘膜和眼睛等。有腐蚀性。
  • 用途二:用作干燥剂、脱水剂、糖的精制剂,并用于制取磷酸、磷化合物及气溶胶等 用作半导体硅的掺杂源、脱水干燥剂、有机合成缩合剂及表面活性剂,也用于高纯磷酸的制备
  • 升华点:340-360 °C
  • 参考质量标准:项目 指标 化学纯 分析纯 特定级 含量(五氧化二磷) ≥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% ≤0.005% 澄清度试验 合格 合格 合格 水不溶物 ≤0.02% ≤0.01% ≤0.01% 总氮量(N) ≤0.002% ≤0.001% ≤0.001% 重金属以(Pb计) ≤0.002% ≤0.001% ≤0.001% 铁含量(Fe) ≤0.002% ≤0.001% ≤0.001% 砷含量(As) ≤0.01% ≤0.005% ≤0.0025%
  • 五氧化二磷价格(
  • 参考质量标准一:参考标准 指标名称 指标 五氧化二磷(P
  • F:3-10
  • 吸水性:有很强的吸水性,在空气中易潮解,对皮肤有腐蚀性,工作场所最高允许浓度为1mg/m3。五氧化二磷的干燥效率是298K时水蒸气的含量为1立方米0.00001克,即被五氧化二磷干燥后,每立方米空气中最多剩0.00001克水,五氧化二磷可使硫酸、硝酸脱水。当五氧化二磷与水物质的量为1:6时,五氧化二磷可转化为正磷酸。
  • 常规方法:玻璃瓶装,每瓶净重0.5kg,外套木箱,每箱20瓶;或用聚乙烯塑料桶装,每桶净重40kg。包装上应有明显的“腐蚀性物品”标志。 属一级无机酸性腐蚀物品,危规编号:91034。应贮存在通风、干燥的库房中,容器必须密封。不可与有机物品、双氧水等共贮混运。应隔绝潮气与水。运输时注意防雨淋和日晒。装卸时要轻拿轻放,防止包装破损。 失火时,可用砂土、二氧化碳灭火器扑救,但不可用水。
  • 防护措施:五氧化二磷的烟雾刺激粘膜。对皮肤有刺激和灼烧作用(组织脱水)。 最高容许浓
  • 参考质量标准二:参考标准 指标名称 指标(高纯级) 5N 4N 五氧化二磷(P2O5)/%≥ 99.999 99.99 铁(Fe)/%≤ 1×10 -4 1×10 -4 铅(Pb)/%≤ 1×10 -5 1×10 -4 镍(Ni)/%≤ 1×10 -5 1×10 -4 铋(Bi)/%≤ 1×10 -5 1×10 -4 铝(Al)/%≤ 6×10 -5 1×10 -4 铜(Cu)/%≤ 3×10 -5 1×10 -4 银(Ag)/%≤ 5×10 -6 1×10 -4 镓(Ga)/%≤ 6×10 -6 1×10 -4 钴(Co)/%≤ 3×10 -6 1×10 -4 砷(As)/%≤ 6×10 -6 2×10 -3 锌(Zn)/%≤ 1×10 -5 1×10 -4 钼(Mo)/%≤ 1×10 -5 1×10 -4
  • 毒性分级:高毒
  • 防护措施:五氧化二磷的烟雾刺激粘膜。对皮肤有刺激和灼烧作用(组织脱水)。 最高容许浓度为1mg/m3。 生产设备和管道要密闭,并保持通风良好。生产工人要穿戴劳保防护用品,并戴防毒口罩,有五氧化二磷蒸气和烟雾时要戴防毒面具。注意保护皮肤,切勿入口和触目。如不慎触及皮肤,应立即用水冲洗干净。
  • MOL 文件:1314-56-3.mol
  • 可燃性危险特性:遇水产生烟雾
  • P

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