A Simple Method for the Purification of Crude Hexanitrohexaazaisowurtzitane (HNIW or CL20) | Zendy

Bellamy Anthony J. | Zendy

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A Simple Method for the Purification of Crude Hexanitrohexaazaisowurtzitane (HNIW or CL20)

Author(s) -

Bellamy Anthony J.

Publication year - 2003

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.200390021

Subject(s) - heptane , chromatography , chemistry , simple (philosophy) , organic chemistry , epistemology , philosophy

A simple method for purifying crude hexanitrohexaazaisowurtzitane (HNIW or CL20) to analytical purity is described. This involves filtering a solution of HNIW in heptane / ethyl acetate through a column of Darco activated carbon type G‐60 (∼20 g carbon/g HNIW). The method works extremely well for HNIW derived from 4,10‐diformyl‐2,6,8,12‐tetraacetylhexaazaisowurtzitane (final purity>99.95%, ∼90% recovery), and reasonably well for HNIW derived from 4,10‐dibenzyl‐2,6,8,12‐tetraacetylhexaazaisowurtzitane.

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