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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

N-Acetylmorpholine | CAS 1696-20-4

An acylmorpholine solvent appearing in polyurethane-dispersion and extraction patents, with water, residual amine and nonvolatile residue relevant to formulation selection.

CAS1696-20-4
Molecular formulaC6H11NO2
Molecular weight129.16 g/mol

Product overview

Acetylation converts the nitrogen of morpholine into a tertiary amide while retaining the ring oxygen. N-Acetylmorpholine therefore differs chemically from morpholine as an amine reagent. For solvent procurement, the useful specification centers on the intact amide, residual morpholine, water and residue rather than a generic amine assay. Compatibility should be established with the selected polymer and other formulation components.

Chemical identity

Chemical name
N-Acetylmorpholine
CAS number
1696-20-4
Molecular formula
C6H11NO2
Molecular weight
129.16 g/mol

Application context

Published patents describe N-acetylmorpholine in polyurethane dispersion formulations and as an extraction solvent for hydrocarbon mixtures. These applications place it in process-solvent selection and formulation development. When assessing a proposed lot for a dispersion, consider how its water content and residual basic species fit the intended sequence and resin chemistry. Solvency, removal behavior and final-film properties should be evaluated in the specific formulation.

Chemistry and synthetic role

The molecule combines a tertiary acetamide with a six-membered ether-containing ring; its nitrogen has no N-H bond.

Quality review

Residual morpholine

Set a method and limit for unacetylated amine where resin chemistry is sensitive to basic species.

Water balance

Define a water criterion consistent with the solvent’s place in the dispersion process.

Residue and appearance

Review nonvolatile residue and, for visually sensitive formulations, an agreed color method.

Preparing a specification

State N-acetylmorpholine assay, residual morpholine, water and nonvolatile-residue requirements; add color criteria when relevant to the finished dispersion.

Packaging and storage

Confirm container compatibility, closure and net weight for the selected grade and destination. Follow the actual supplier SDS and batch label for storage and transport.

Documentation

Request the batch COA, SDS and analytical methods covering the agreed purchasing specification. Confirm which supporting chromatograms and application-specific records are available from the selected manufacturer.

Procurement questions

Is it chemically equivalent to morpholine?

No. Its nitrogen is acetylated and belongs to an amide function.

Can it be selected as a universal solvent replacement?

Solvency and final-product behavior need evaluation with the specific resin and process.

Why measure residual morpholine?

The free amine has different reactivity and basicity from the N-acetyl compound.

Technical sources
  1. PubChem CAS identity lookupNCBI / PubChem
  2. N-AcetylmorpholineNIST Chemistry WebBook
  3. Polymer dispersions containing acylmorpholinesPatent applicants / Google Patents
  4. Extraction using N-acetylmorpholinePatent applicants / Google Patents