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Stearamidopropyl dimethylamine

Catalog Number

ACM7651027

CAS

7651-02-7

Structure

IUPAC Name

N-[3-(dimethylamino)propyl]octadecanamide

Synonyms

Dimethylaminopropyl stearamide;N-(3-(Dimethylamino)propyl)stearamide;Octadecanamide, N-(3-(dimethylamino)propyl)-

Molecular Weight

368.64

Molecular Formula

C23H48N2O

Canonical SMILES

CCCCCCCCCCCCCCCCCC(=O)NCCCN(C)C

InChI

WWVIUVHFPSALDO-UHFFFAOYSA-N

InChI Key

InChI=1S/C23H48N2O/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-20-23(26)24-21-19-22-25(2)3/h4-22H2,1-3H3,(H,24,26)

Boiling Point

208-215 °C

Melting Point

49-50 °C

Density

0.874±0.06g/ml

Active Content

95%

Physical State

Solid

Typical Applications

Use as emulsifying agent, dispersing agent.
Use as lubricant.
Use as corrosion inhibitor.

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

Case Study

Stearamidopropyl Dimethylamine as a High-Efficiency Corrosion Inhibitor for API X120 Steel in Acidic Environments

Stearamidopropyl Dimethylamine as a High-Efficiency Corrosion Inhibitor for API X120 Steel in Acidic Environments Radwan, A. Bahgat, et al. Journal of Molecular Liquids 236 (2017): 220-231.

Stearamidopropyl dimethylamine (SAPDA) has been identified as a highly effective corrosion inhibitor for API X120 steel in 0.5 M HCl, achieving an inhibition efficiency of approximately 99% at a concentration of 136 μmol L⁻¹. Its protective effect is attributed to a combined chemi/physisorption process, which follows Langmuir's adsorption isotherm, as confirmed by electrochemical impedance spectroscopy (EIS) and polarization studies.
Experimental results demonstrated that SAPDA significantly reduced the corrosion rate by increasing the activation energy of the corrosion reaction, thereby limiting the dissolution of Fe. Optical profilometry further revealed that the steel surface in the presence of SAPDA exhibited significantly lower roughness compared to the uninhibited acidic medium. Polarization measurements classified SAPDA as a mixed-type inhibitor, effectively suppressing both anodic and cathodic reaction rates.
Quantum chemical calculations using density functional theory (DFT) provided insights into SAPDA's inhibition mechanism, correlating its molecular structure with its adsorption characteristics. Key parameters, including HOMO-LUMO energy gap, absolute electronegativity, and electron transfer fraction, supported the strong interaction between SAPDA and the steel surface.
These findings establish SAPDA as a promising green corrosion inhibitor for API X120 steel, particularly for applications in harsh acidic environments such as the oil and gas industry. Its high efficiency and adsorption stability highlight its potential for extending the lifespan of steel structures, reducing maintenance costs, and improving industrial sustainability.

Custom Q&A

What is the IUPAC Name of Stearamidopropyl dimethylamine?

The IUPAC Name is N-[3-(dimethylamino)propyl]octadecanamide.

What is the molecular weight of Stearamidopropyl dimethylamine?

The molecular weight is 368.64.

What is the CAS number of Stearamidopropyl dimethylamine?

The CAS number is 7651-02-7.

What is the boiling point range of Stearamidopropyl dimethylamine?

The boiling point range is 208-215°C.

What is the melting point of Stearamidopropyl dimethylamine?

The melting point is 49-50°C.

What is the density of Stearamidopropyl dimethylamine ?

The density is 0.874±0.06g/ml.

What are some typical applications of Stearamidopropyl dimethylamine?

The typical applications are use as an emulsifying agent, dispersing agent, lubricant, and corrosion inhibitor.

What is the physical state of Stearamidopropyl dimethylamine?

The physical state is solid.

What percentage of actives does Stearamidopropyl dimethylamine contain?

Stearamidopropyl dimethylamine contains 95% actives.

What are some synonyms for Stearamidopropyl dimethylamine?

Some synonyms for Stearamidopropyl dimethylamine are Dimethylaminopropyl stearamide and N-(3-(dimethylamino)propyl)-Octadecanamide.

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