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Estimation of ammonium perchlorate in HTPB based composite solid propellants using Kjeldahl method
Author(s) -
Ajaz A. G.
Publication year - 1996
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19960210111
Subject(s) - ammonium perchlorate , kjeldahl method , polybutadiene , composite number , hydroxyl terminated polybutadiene , propellant , materials science , ammonium , aluminium , distillation , perchlorate , composite material , nuclear chemistry , chemistry , chromatography , nitrogen , organic chemistry , ion , copolymer , polymer
Kjeldahl method has been applied to determine the percentage of ammonium perchlorate (AP) in hydroxy‐terminated polybutadiene (HTPB) based composite solid propellants. It has been found that in pastes containing aluminium (Al) it is important to eliminate all the Al before starting the actual reaction (distillation). The results obtained are in the range of ±0.05% for pastes with and without Al whereas the range is ±0.02% for pure AP. End points are confirmed using pH meter.