All Photos(1)
Synonym(s):
Phosphinic acid
Linear Formula:
H3PO2
CAS Number:
Molecular Weight:
66.00
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21
vapor pressure
<17 mmHg ( 20 °C)
Quality Level
form
liquid
concentration
48-52% in NaOH (titration)
50 wt. % in H2O
pH
1 (20 °C, 500 g/L)
density
1.206 g/mL at 25 °C
SMILES string
O[PH2]=O
InChI
1S/H3O2P/c1-3-2/h3H2,(H,1,2)
InChI key
ACVYVLVWPXVTIT-UHFFFAOYSA-N
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General description
H3PO2, a monobasic oxyacid, is also referred to as phosphinic acid. H3PO2 participates as a reducing agent for the conversion of aromatic and aliphatic diselenides to the corresponding selenols.
It undergoes oxidation in the presence of Ce(IV) and a strong acid to afford cerium(IV) hypophosphite complex ions.
It undergoes oxidation in the presence of Ce(IV) and a strong acid to afford cerium(IV) hypophosphite complex ions.
Application
- Synthesis of Aminobisphosphinates through a Cascade Reaction between Hypophosphorous Acid and Bis(trimethylsilyl)imidates Mediated by ZnI(2).: This research presents a novel method for synthesizing aminobisphosphinates, utilizing hypophosphorous acid in a zinc iodide-mediated cascade reaction, which could be relevant in the development of new chemical entities in medicinal chemistry (Ayadi et al., 2023).
- Facile Synthesis of Liquid Crystal Dimers Bridged with a Phosphonic Group.: This study explores the use of hypophosphorous acid in the synthesis of phosphonic group-bridged liquid crystal dimers, offering potential advancements in materials science and display technologies (Wang et al., 2022).
- Oxidation of Hypophosphorous Acid by a Ruthenium(VI) Nitrido Complex in Aqueous Acidic Solution. Evidence for a Proton-Coupled N-Atom Transfer Mechanism.: Investigates the mechanistic details of hypophosphorous acid oxidation by a ruthenium complex, shedding light on reaction pathways important in catalysis and synthesis (Li et al., 2022).
- Solution-processed Ge(ii)-based chalcogenide thin films with tunable bandgaps for photovoltaics.: Discusses the application of hypophosphorous acid in the development of germanium-based chalcogenide thin films, contributing to advancements in photovoltaic materials (Hu et al., 2022).
- One-Pot Synthesis and in Silico Molecular Docking Studies of Arylselanyl Hydrazides as Potential Antituberculosis Agents.: Utilizes hypophosphorous acid in the one-pot synthesis of arylselanyl hydrazides, evaluated for their potential as antituberculosis agents through molecular docking studies (Borges et al., 2022).
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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