Phosphorus(V) oxide 五氧化二磷
CAS 1314-56-3 MFCD00011440
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信息真实价格透明
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专业采购外包团队在线服务
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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.
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- 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
GHS Symbol
- 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);
- 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
- 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.....
- H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
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,
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