Phenylphosphinic acid Chemical Properties

Melting point:

83-85 °C(lit.)

Boiling point:

180 °C

Density 

1.376

storage temp. 

Sealed in dry,Room Temperature

solubility 

DMSO (Slightly), Water (Slightly, Heated)

pka

pK1:2.1 (17°C)

form 

Crystalline Solid

color 

White

Water Solubility 

7.7 g/100 mL (25 ºC)

BRN 

2802244

InChI

InChI=1S/C6H7O2P/c7-9(8)6-4-2-1-3-5-6/h1-5,9H,(H,7,8)

InChIKey

MLCHBQKMVKNBOV-UHFFFAOYSA-N

SMILES

P(C1=CC=CC=C1)(O)=O

CAS DataBase Reference

1779-48-2(CAS DataBase Reference)

NIST Chemistry Reference

Phosphinic acid, phenyl-(1779-48-2)

EPA Substance Registry System

Phosphinic acid, phenyl- (1779-48-2)

Safety Information

Hazard Codes 

C,Xn

Risk Statements 

22-34-41-37/38

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3261 8/PG 3

WGK Germany 

3

RTECS 

SZ5462500

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29309099

MSDS

• Language:English Provider:Benzenephosphinic acid
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Phenylphosphinic acid Usage And Synthesis

Chemical Properties

white crystals or crystalline powder

Uses

Antioxidant, intermediate for metallic-salt formation, accelerator for organic peroxide catalysts.

Uses

Coproporphyrin I-15N4 is an intermediate in the synthesis of Coproporphyrin I-15N4 Sodium BIsulfate Salt (C685402). Labelled Coproporphyrin I. Coproporphyrin I is a porphyrin, a naturally occuring aromatic heterocyclic marcomolecule. The ratio of Coproporphyrin I and Coproporphyrin III provides a useful biochemical marker for distinguishing familial and sporadic porphyria cutanea tarda. Coproporphyrin I also serve as a biomarker of environmental toxicity and susceptibility in autism.

General Description

Phenylphosphinic acid is also known as phenylphosphonous acid. Kinetics of oxidation of phenylphosphinic acid by metal and non metal oxidants was investigated in a study.2

Purification Methods

Crystallise it from H2O (solubility is 7.7% at 25o). Also purify it by placing the solid in a flask covered with dry Et2O, and allowed it to stand for 1day with intermittent shaking. Et2O is decanted off and the process repeated. After filtration, excess Et2O is removed in a vacuum. It has also been recrystallised from *C6H6. [Michaelis Justus Liebigs Ann Chem 181 265 1876, Banks & Skoog Anal Chem 29 109 1957, NMR: Van Wazer et al. J Am Chem Soc 78 5715 1956, Beilstein 16 IV 1033.]

Phenylphosphinic acid(1779-48-2)Related Product Information

• 1-Hydroxyethylidene-1,1-diphosphonic acid
• Stearic acid
• Citric acid
• Folic acid
• Zoledronic acid
• Disodium pamidronate
• Phenylphosphonic acid
• Ethyl 2-(Chlorosulfonyl)acetate
• Amino tris(methylene phosphonic acid)
• Phenylpropyl aldehyde
• Phenylphosphonic dichloride
• Phenylpropiolic acid
• Ascoric Acid
• CHLOROPHOSPHONAZO III
• PHENYLPHOSPHONIC ACID DISODIUM SALT
• DIETHYL PHENYLPHOSPHONATE
• phenylphosphinic acid sodium salt
• Diphenylphosphinic acid