This is a complete list of Japanese explosives used during the Second World War. It is sorted according to application.
Explosive Type Application Navy or Army Japanese designation Comments Mercury fulminatePotassium chlorateAntimony trisulfide Primer cap composition Army Bakufun Mk I and Mk III powders are ammunition primers, Mk II is a fuze primer Potassium chlorateAntimony trisulfide Primer cap composition Both - Most common mixture for fuze primers Mercury fulminate Initiator in fuzes and blasting caps Both Raikoo (Thunder Mercury) Lead azide Initiator in fuzes and blasting caps Both Chikka Namari Most common initiator Tetryl Sub-booster Both Meiayaku Pressed. RDX Sub-booster Army Shouyaku Pressed. Often used with wax 70% Trinitroanisole 30% HND Main charge, auxiliary booster bombs, sea mines, depth charges Navy H2 kongo or Type 98 Pressed. TNT Main charge Projectiles, hand grenades rarely in bombs Army Chakatusuyaku (tea colored explosive) Usually cast in paper wrapped blocks Picric acid Main charge and main booster charge bombs, projectiles, sea mines, land mines Both Ooshokuyaku (Yellow color explosive) or Shimose Most commonly used booster. Pressed 66% Ammonium perchlorate 16% Silicon carbide 12% wood pulp6% oil Main charge mines, depth charges Navy Type 88 Loose grey powder. Friction sensitive. Trinitroanisole Main charge bombs Navy Type 91 Cast 60% Trinitroanisole 40% RDX Main charge torpedo warheads Navy Type 94 60% TNT 40% HND Main charge torpedo warheads, depth charges Navy Seigate or Type 97 Cast blocks 70% Trinitroanisole 30% HND Main charge bombs, sea mines, depth charges Navy Type 98 Poured into case and cast 81% Ammonium picrate16% aluminium powder2% wood pulp1% oil Main charge depth charges Navy Type 1 Loose powder 60% TNT24% HND16%aluminium powder Main charge torpedo warheads Navy Otsu-B 25% TNT75% picric acid Main charge bombs Army Chaooyaku Used rarely. TNT lowers the melting point making it suitable for casting 50% Picric acid50% Dinitronaphthalene Main charge projectiles Army Oonayaku Used rarely. Dinitronapthalene aids casting. 90% Picric acid10% Wax Main charge projectiles Army Ooshivaku Used in the nose of armour piercing projectiles. Insensitive. 70% TNT30% Dinitronaphthalene Main charge projectiles Army Chanayaku Cast 70% to 50% TNT30% to 50% RDX Main charge bombs, projectiles, landmines and bangalore torpedoes Army Nigo tanooyaku (Mk2) Cast 75% Ammonium nitrate25% RDX Main charge bombs Army Anga yaku Cast in case. Hygroscopic
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