Lead styphnate

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Lead styphnate chemical structure
Lead styphnate
lead (II) 2,4,6-trinitrobenzene-1,3-diolate
IUPAC name
Chemical formula C6HN3O8Pb
Molecular mass 450.288 g/mol
Shock sensitivity High
Friction sensitivity High
Density 1.5 g/cm3
Explosive velocity 5200 m/s
RE factor  ?
Melting point N/A
Autoignition temperature 330 °C
Appearance yellow-brown
crystalline solid
CAS number 15245-44-0
PubChem 61789
SMILES C1=C(C(=C(C(=C1[N+]
(=O)[O-])[O-])[N+](=O)
[O-])[O-])[N+](=O)[O-].[Pb+2]

Lead styphnate (lead 2,4,6-trinitroresorcinate, C6HN3O8Pb ), whose name is derived from styphnic acid, is a toxic explosive used as a component in primer and detonator mixtures for less sensitive explosives, such as nitroglycerine.

There are two forms of lead styphnate: six-sided monohydrate crystals and small rectangular crystals. Lead styphnate varies in color from yellow to brown. Lead styphnate is particularly sensitive to fire and the discharge of static electricity. When dry, it can be readily detonated by static discharges from the human body. The longer and narrower the crystals, the more susceptible lead styphnate is to static electricity. Lead styphnate does not react with metals and is less sensitive to shock and friction than mercury fulminate or lead azide. Lead styphnate is only slightly soluble in water and methyl alcohol and may be neutralized by a sodium carbonate solution. It is stable in storage, even at elevated temperatures.


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