Lead styphnate

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Lead styphnate
Bleistyphnat.png
Identifiers
CAS number 15245-44-0 YesY
PubChem 61789
ChemSpider 21106132 YesY
EC-number 239-290-0
UN number 0130
Jmol-3D images Image 1
Properties
Molecular formula C6HN3O8Pb
Molar mass 450.288 g/mol
Density 3.02 g/cm3, solid
Explosive data
Shock sensitivity High
Friction sensitivity High
Explosive velocity 5200 m/s
Hazards
MSDS Oxford MSDS
EU classification Harmful (X), Dangerous for the environment (N), Explosive (E)
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 4: Very short exposure could cause death or major residual injury. E.g., VX gas Reactivity code 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g., fluorine Special hazards (white): no codeNFPA 704 four-colored diamond
Autoignition temperature 330 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

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

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.

As with other lead-containing compounds, lead styphnate is inherently toxic to humans if ingested i.e. can cause heavy metal poisoning.

References[edit]

  1. ^ http://echa.europa.eu/documents/10162/13638/svhc_supdoc_lead_styphnate_en.pdf
  2. ^ Jacques Boileau, Claude Fauquignon, Bernard Hueber and Hans H. Meyer "Explosives" in Ullmann's Encyclopedia of Industrial Chemistry 2009, Wiley-VCH, Weinheim. doi:10.1002/14356007.a10_143.pub2

External links[edit]