Table 1 Major inorganic (IGSR) and organic (OGSR) particle present in Gunshot Residue encountered at the SOC (scene of crime)
Inorganic constituents | Source | Organic constituents | Source |
|---|---|---|---|
Lead | Bullet and primer | Nitroglycerine | Primer mix/propellant mix |
Barium | Primer | Nitrocellulose | Double-base propellant/primer mix |
Antimony | Primer | Diphenylamine (DPA) | Single-base propellant powder |
Copper | Jacket of bullet | Ethyl centralite (EC) | Double-base powder/Propellant powder |
Iron | Barrel/bullet | Ethyl phthalates | Plasticizers/propellant powder |
Chromium | Propellants | Glyceryl triacetate | Plasticizers |
Nitrates | Inorganic oxide and from propellants | Nitro guanidine | Plasticizers/propellant powder |
Nitrites | Propellants | 2,4-Dinitrotoluene(DNT) | Flash suppressant/Propellant powder |
Zinc | Jacket/Primer cup/Primer mix | 2,6-Dinitrotoluene (DNT) | Flash suppressant/propellant powder |
Nickel | Nickel coating of shell/case | 2,3-Dinitrotoluene(TNT) | Flash suppressant/propellant powder |
Sodium nitrate | Primer mix | 2,4,6-Trinitrotoluene | Propellant powder/primer mix |
Mercury | Primer mix | Akardite II (AK II) | Propellant powder |
Potassium | Propellant/primer mix | Methyl centralite (N, N-dimethyl carbanilide) | Propellant powder |
Magnesium, aluminum | Primer mix | Cyclonite (RDX) | Propellant powder |
Cupro-nickel | Bullet jacket | Pentaerythritol tetra nitrate (PETN) | Propellant powder/primer mix |
Zirconium powder | Reducing agent | Benzo nitrile | Combustion byproduct |
Tungsten | From bullet | Ethyl centralite | Stabilizer |
Tin | Cartridge case | Aniline | Combustion byproduct |
Strontium | Oxidizer | Anthracene | Combustion byproduct |
Stannic oxide | Oxidizer | Indole | Combustion byproduct |
Phosphoric acid | Oxidizer | Naphthalene | Combustion byproduct |
Mercury fulminate | Explosive | Nitrobenzene | Explosive |
Mercury | Explosive | p-Cresol | Stabilizer |
Phosphorus | Cartridge case | Toluene | Combustion byproduct |
Manganese/beryllium | Fuel | Picric acid | Explosive |
Bronze/brass | Cartridge case | Phytane | Stabilizer |