Lead styphnate (LS) is a primary explosive used in ordnance systems as components in defense initiation trains. These applications include non-corrosive percussion primers, stab initiated devices, bridgewire initiated compositions, and detonators, and is used in nearly all commercial primer applications as well. Lead styphnate has been widely used in ordnance systems for many years.
PacSci EMC completed an NAVSEAINST 8020.5C evaluation testing on an LS green energetics replacement, KDNP (4,6-dinitro-7-hydroxy benzofuroxan, potassium salt). Based on the results, Naval Sea Systems Command qualified KDNP as a primary explosive in accordance with the requirements of NAVSEAINST 8020.5C and identified the compound safe and suitable for service use, and qualified for weapons development.
In addition to qualification testing, KDNP (U.S. Patent 8,062,443 for use in Lead Free Primers) successfully evaluated LS performance in a variety of applications. KDNP has compatibility equal to – or greater than – LS with a variety of ordnance materials and has substantially greater output on a weight basis in pressure-time (closed bomb) testing. KDNP may be recrystallized to a particle-size, appropriate for use in a variety of systems to be tailored for use as either a small particle component of a bridgewire slurry or a large particle constituent of a stab primer.