Phosphorus Pentoxide
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://chemfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://chemfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://chemfyi.com/entity//)Use the native HTML custom element.
Cite "Phosphorus Pentoxide"
Phosphorus Pentoxide. (n.d.). In Compound. Retrieved from /ja/compound/phosphorus-pentoxide/
"Phosphorus Pentoxide." Compound, /ja/compound/phosphorus-pentoxide/.
@misc{phosphorus-pentoxide, title={Phosphorus Pentoxide}, url={/ja/compound/phosphorus-pentoxide/}}
IUPAC: Phosphorus(V) oxide
CAS: 1314-56-3
概要
Phosphorus pentoxide is the most powerful desiccant (drying agent) known. It is so hygroscopic that it reacts violently with water, producing phosphoric acid and considerable heat. It is used to dry gases and solvents and as a dehydrating agent in organic synthesis.
組成
| 元素 | 記号 | 原子 | 原子質量 |
|---|---|---|---|
| Oxygen | O | 10 | 15.9990 |
| Phosphorus | P | 4 | 30.9740 |
元素組成
用途
- • Powerful desiccant
- • Dehydrating agent in organic synthesis
- • Phosphoric acid production
- • Drying gases
豆知識
- ✦ Can dry solvents to less than 1 ppm water content
- ✦ The molecular formula is P₄O₁₀, not P₂O₅ as commonly written
安全性
- ⚠ Reacts violently with water
- ⚠ Corrosive
- ⚠ Causes severe burns
Structure
SMILES
O=P(=O)OP(=O)=O
特性
- タイプ
- oxide
- 状態
- solid
- モル質量
- 283.89 g/mol
- 密度
- 2.3900 g/cm³
- 融点
- 340.0 °C
- 沸点
- 360.0 °C
- 溶解度
- decomposes violently
Molecular Descriptors
- Exact Mass
- 141.9221
- XLogP
- -2.1
- TPSA
- 77.5 Ų
- H-Bond Donors
- 0
- H-Bond Acceptors
- 5
- Rotatable Bonds
- 0
- Heavy Atoms
- 7
- Complexity
- 123.0