Process for Assessing the Stability of HAN (Hydroxylamine)-Based Liquid Propellants.

Abstract

The second Interim Report deals with the quantitative chemical analysis of monergol liquid propellants based on HAN. This included the components HAN (hydroxylamine), IPAN (Isopropylammonium nitrate), TEAN (triethanolammonium nitrate), AN (ammonium nitrate) and free nitric acids. As method, volumetric analysis (titration) with potentiometric (electrochemical) indication was selected. For our measurements we used the 'Titroprozessor 636' (a microprocessor system) from Messrs. Metrohm AG (CH 9100 Herisau, Switzerland. We used water as solvent for the samples (i.e. no organic solvents). The propellant components were to be determined by immediate (simultaneous) titration in a sample. HAN and AN had to be converted to derivates (acetoxim and hexamethylene tetramine) as the case arose. Relative error was 0.1 - 0.2% for HAN and 1 - 1.5% for IPAN and TEAN. Nitric acid and AN were only present in small quantities (approx. 1%). The relative error may here reach 25%. Titrations organic solvents were to be carried out and assessed later. Keywords: Liquid propellants, Monergols, Chemical stability, Long term stability, Chemical analysis.

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Document Details

Document Type
Technical Report
Publication Date
Jul 29, 1987
Accession Number
ADA190687

Entities

People

  • E. Backof
  • H. J. De Greiff
  • Roy Edgar Hansen

Tags

DTIC Thesaurus Topics

  • Acids
  • Ammonium Nitrate
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Indicator Dyes
  • Liquid Propellants
  • Nitric Acid
  • Nitrogen Compounds
  • Organic Solvents
  • Plastic Explosives
  • Propellants
  • Rocket Oxidizers
  • Solvents
  • Titration
  • United States
  • Volumetric Analysis

Readers

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