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Title: Synthesis and Evaluation of 3-Picrylamino-1,2,4-Triazole (PATO) Formulations

Abstract

3–Picrylamino–1,2,4–triazole (PATO) is a thermally stable explosive invented at Los Alamos National Laboratory (LANL) almost half a century ago. Despite a rapid and high yielding synthesis, performance data for this promising explosive are scant. We prepared material using Coburn's synthesis, and discovered that the particle size distribution and morphology leads to difficulty in pressing formulations to high density. Three formulations were made using glycidyl azide polymer (GAP), FK–800, and Estane 5703/nitroplasticizer (NP) as binders. The maximum pressed density of these formulations was 89 % of theoretical maximum density (TMD). We determined detonation velocity and, for the FK–800 formulation, detonation pressure. Furthermore, the performance of PATO is similar to TATB at equivalent pressed density.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1480037
Report Number(s):
LA-UR-17-29104
Journal ID: ISSN 0721-3115
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Propellants, Explosives, Pyrotechnics
Additional Journal Information:
Journal Volume: 44; Journal Issue: 2; Journal ID: ISSN 0721-3115
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Explosive

Citation Formats

Leonard, Philip, Bowden, D. Patrick, Shorty, Marvin, and Schmitt, Matt Mark. Synthesis and Evaluation of 3-Picrylamino-1,2,4-Triazole (PATO) Formulations. United States: N. p., 2018. Web. doi:10.1002/prep.201800144.
Leonard, Philip, Bowden, D. Patrick, Shorty, Marvin, & Schmitt, Matt Mark. Synthesis and Evaluation of 3-Picrylamino-1,2,4-Triazole (PATO) Formulations. United States. doi:10.1002/prep.201800144.
Leonard, Philip, Bowden, D. Patrick, Shorty, Marvin, and Schmitt, Matt Mark. Mon . "Synthesis and Evaluation of 3-Picrylamino-1,2,4-Triazole (PATO) Formulations". United States. doi:10.1002/prep.201800144. https://www.osti.gov/servlets/purl/1480037.
@article{osti_1480037,
title = {Synthesis and Evaluation of 3-Picrylamino-1,2,4-Triazole (PATO) Formulations},
author = {Leonard, Philip and Bowden, D. Patrick and Shorty, Marvin and Schmitt, Matt Mark},
abstractNote = {3–Picrylamino–1,2,4–triazole (PATO) is a thermally stable explosive invented at Los Alamos National Laboratory (LANL) almost half a century ago. Despite a rapid and high yielding synthesis, performance data for this promising explosive are scant. We prepared material using Coburn's synthesis, and discovered that the particle size distribution and morphology leads to difficulty in pressing formulations to high density. Three formulations were made using glycidyl azide polymer (GAP), FK–800, and Estane 5703/nitroplasticizer (NP) as binders. The maximum pressed density of these formulations was 89 % of theoretical maximum density (TMD). We determined detonation velocity and, for the FK–800 formulation, detonation pressure. Furthermore, the performance of PATO is similar to TATB at equivalent pressed density.},
doi = {10.1002/prep.201800144},
journal = {Propellants, Explosives, Pyrotechnics},
number = 2,
volume = 44,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Scheme Scheme: The synthesis of PATO by nucleophilic aromatic substitution.

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Works referenced in this record:

(Picrylamino)-1,2,4-triazole Derivatives - Thermally Stable Explosives
journal, January 2016

  • Chioato, Zoe L.; Klapötke, Thomas M.; Mieskes, Frank
  • European Journal of Inorganic Chemistry, Vol. 2016, Issue 7
  • DOI: 10.1002/ejic.201501435

Picrylamino-substituted heterocycles. III. 1,2,4-triazoles
journal, April 1968

  • Coburn, Michael D.; Jackson, Thomas E.
  • Journal of Heterocyclic Chemistry, Vol. 5, Issue 2
  • DOI: 10.1002/jhet.5570050208

Modified Preparation and Purification of 3-(2′,4′,6′-Trinitrobenzenyl) Amino-1,2,4-Triazole
journal, April 1999


Characterization of a Slurry Process Used to Make a Plastic-Bonded Explosive
journal, December 1999