N-OCTYLPHOSPHONIC ACID Chemical Properties

Melting point:

100-102°C

Boiling point:

170 °C(Press: 0.05 Torr)

Density 

1.080±0.06 g/cm3(Predicted)

vapor pressure 

0Pa at 25℃

storage temp. 

Sealed in dry,Room Temperature

solubility 

soluble in Methanol

pka

2.69±0.10(Predicted)

form 

Powder

color 

white to off-white

Specific Gravity

1.10

Water Solubility 

Slightly soluble in organic solvents and water.

Hydrolytic Sensitivity

4: no reaction with water under neutral conditions

BRN 

1764242

InChIKey

NJGCRMAPOWGWMW-UHFFFAOYSA-N

LogP

2.7 at 25℃

EPA Substance Registry System

Phosphonic acid, octyl- (4724-48-5)

Safety Information

Hazard Codes 

C

Risk Statements 

36/37/38-48/22-34-22

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3261 8 / PGII

WGK Germany 

2

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29319090

MSDS

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N-OCTYLPHOSPHONIC ACID Usage And Synthesis

Appearance

N-octylphosphonic acid is a white to off-white solid.

Solubility

Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly).

Uses

1-Octylphosphonic acid is a basic building block and used in the preparation of various pharmaceutical compounds and chemical products. It is supported with calcium hydroxyapatite and used in the dental field as corrosion inhibitor and organic building block. It acts as a corrosion inhibitor in metallic household surfaces such as faucets and drains as well as prevents the rusting of can or dispenser. It is also used in the synthesis of octyl-phosphonic acid dimethyl ester by reacting with iodomethane in presence of CS2 CO3.

Uses

OPA can be used as a surfactant that may be added to silver (Ag)/titanium oxide (TiO₂) for uniform dispersion into the polymeric matrix. It may be coated on indium-tin oxide (ITO) substrates, which can be used for super-resolution microscopy. OPA based charge blocking layer may be used to prevent leakage of current in a hybrid dielectric film.

General Description

Octylphosphonic acid (OPA) forms a self-assembled monolayer (SAM), which serves as a protective anti-corrosive phosphonate layer on a variety of surfaces.

Flammability and Explosibility

Non flammable

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