二リン(IV)酸

Hypophosphoric acid

HCID 24536CAS 7803-60-3

部分構造検索類似構造を探す

基本情報

標準SMILES: O=P(O)(O)P(=O)(O)O
InChIKey: TVZISJTYELEYPI-UHFFFAOYSA-N
分子式: H4O6P2
平均分子量: 161.98 g/mol
単同位体質量: 161.94831111

概要

Hypodiphosphoric acid is a phosphorus oxoacid.

名称と識別子

優先名称: Hypophosphoric acid
IUPAC: phosphonophosphonic acid
現地名: 二リン(IV)酸
英語名: Hypophosphoric Acid
分子式: H4O6P2
分子量: 161.98

名称と別名

Hypophosphoric acidhypodiphosphoric acidUnterdiphosphorsaeureUNII-CY8Z35442ZCY8Z35442ZH4P2O6DTXSID0064886HYPOPHOSPHORIC ACID [MI]CHEBI:29263bis[dihydroxidooxidophosphorus](P--P)[(HO)2P(O)P(O)(OH)2]bis(dihydroxidooxidophosphorus)(P--P)

名称をさらに表示

二リン(IV)酸

((HO)2P(O)P(O)(OH)2)RefChem:147472DTXCID3048108phosphonophosphonic acid7803-60-3bi-phosphoSCHEMBL129177NS00130154

データベース識別子

CAS: 7803-60-3
PubChem CID: 24536
DTXSID: DTXSID0064886
ChEBI: CHEBI:29263
UNII: CY8Z35442Z
Nikkaji: J2.917.287K、J43.596A

物性

構造計算による物性

XLogP: -3.2
極性表面積: 115 Å²
水素結合供与体数: 4
水素結合受容体数: 6
回転可能結合数: 1
重原子数: 8
形式電荷: 0
複雑度: 135

物理化学的性質

融点: 70 ° · 70° (easily forms a dihydrate, mp 55°)
比重(密度): 2.422 · 2.422±0.06 g/cm3(Predicted)
溶解性: 2 O · very soluble in H2O
酸解離定数(Pka): 0.5 · 0.50±0.10(Predicted)
外見: 無色の斜方晶
色: colorless orthorhombic crystals, crystalline
EPAの化学物質情報: Hypophosphoric acid (7803-60-3)

化学的性質 · 1 件

化学的特性Hypophosphoric acid (H2PO3 or H4P2O6) is a solid, decomposing in solution to form phosphorous plus phosphoric acids. Hypophosphoric acid is used in solution and is a reducing agent, but only with strong oxidizing agents, such as potassium permanganate; and the acid is unaffected by zinc and dilute sulfuric acid (distinction from phosphorous acid). Dehydration of hypophosphoric acid does not yield phosphorus tetroxide; hydration of phosphorus tetroxide does not yield hypophosphoric acid but phosphorous plus phosphoric acids.

安全と法規制

危険有害性情報

Regulatory InformationChemical: Hypophosphoric acid

安全データ

tsca: TSCA listed

化学と産業

用途と製造

General Manufacturing InformationHypophosphoric acid: ACTIVE

応用分野

使用Acid sodium salts in baking powders.

調製方法 · 1 件

Hypophosphoric acid is formed by reaction (1) of yellow phosphorous and potassium permanganate in sodium hydroxide medium, (2) of red phosphorus and calcium hypochlorite solution, (3) also one of the products of slow oxidation at ordinary temperatures of phosphorus in moist air.