Accession Number:

ADA242466

Title:

Chromatographic Separation Method for the Simulant Mixture of Triisopropyl Phosphite and Bis(2-Ethylhexyl) Hydrogen Phosphite

Descriptive Note:

Final rept. Mar-May 1989

Corporate Author:

CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUNDMD

Report Date:

1991-08-01

Pagination or Media Count:

18.0

Abstract:

A simulant mixture has been devised for the Bigeye Fill Close Facility. The ability to analyze for the proposed simulant mixture has called upon an assay analysis for purity. The purity evaluation of triisopropyl phosphite TIP, bis-2-ethylhexyl hydrogen phosphite BIS, and mixtures of these two compounds is to be performed with gas chromatographic GC separation using thermal conductivity detection TCD. A natural impurity within the TIP is that of diisopropyl hydrogen phosphite DIP that could yield an error in the purity results if coelution with TIP occurs. Using a glovebox, investigators transferred samples of TIP, BIS, and DIP to sample vials under a nitrogen blanket. Additional samples were transferred to tubes in a similar manner for evaluation by Fourier Transform FT NMR. The primary method of evaluation was to make individual injections of these chemicals, along with mixture injections of TIPDIP and TIPBIS to obtain suitable chromatographic separations of the components. The methods development involved evaluating instrumental parameters using megabore GC columns.

Subject Categories:

  • Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE