Chemistry:Thallium azide
| File:KN3viewCropped.tif | |
| Names | |
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| IUPAC name
Thallium(I) azide
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| Other names
thallium azide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| Properties | |
| TlN 3 | |
| Molar mass | 246.40 g·mol−1 |
| Appearance | yellow-brown crystals |
| insoluble | |
| Structure | |
| Tetragonal, tI16[1] | |
| I4/mcm, No. 140 | |
| Hazards | |
| Main hazards | very toxic |
| GHS pictograms |    
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| GHS Signal word | Danger |
| NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is   ?)
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| Infobox references | |
Thallium azide, TlN
3, is a yellow-brown crystalline solid poorly soluble in water. Although it is not nearly as sensitive to shock or friction as lead azide, it can easily be detonated by a flame or spark. It can be stored safely dry in a closed non-metallic container.
Preparation and structure
Thallium azide can be prepared treating an aqueous solution of thallium(I) sulfate with sodium azide. Thallium azide will precipitate; the yield can be maximized by cooling.
TlN
3, KN
3, RbN
3, and CsN
3 adopt the same structures. The azide is bound to eight cations in an eclipsed orientation. The cations are bound to eight terminal N centers.[2]
File:AzideCoordinationCropped.tif
Safety
All thallium compounds are poisonous and should be handled with care. Azide salts are also roughly as toxic as their corresponding cyanide salts.[3]
References
- ↑ Mauer F.A.; Hubbard C.R.; Hahn T.A. (1973). "Thermal expansion and low temperature phase transition of thallous azide". J. Chem. Phys. 59 (7): 3770–3776. doi:10.1063/1.1680549. Bibcode: 1973JChPh..59.3770M.
- ↑ Ulrich Müller "Verfeinerung der Kristallstrukturen von KN3, RbN3, CsN3 und TIN3" Zeitschrift für anorganische und allgemeine Chemie 1972, Volume 392, 159–166. doi:10.1002/zaac.19723920207
- ↑ Chang, Soju; Lamm, Steven H. (2003). "Human Health Effects of Sodium Azide Exposure: A Literature Review and Analysis". International Journal of Toxicology 22 (3): 175–186. doi:10.1080/10915810305109. ISSN 1091-5818.
Salts and covalent derivatives of the azide ion
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| HN3 | He | ||||||||||||||||||
| LiN3 | Be(N3)2 | B(N3)3 | CH3N3, C(N3)4 |
N(N3)3,H2N—N3 | O | FN3 | Ne | ||||||||||||
| NaN3 | Mg(N3)2 | Al(N3)3 | Si(N3)4 | P | SO2(N3)2 | ClN3 | Ar | ||||||||||||
| KN3 | Ca(N3)2 | Sc(N3)3 | Ti(N3)4 | VO(N3)3 | Cr(N3)3, CrO2(N3)2 |
Mn(N3)2 | Fe(N3)3 | Co(N3)2, Co(N3)3 |
Ni(N3)2 | CuN3, Cu(N3)2 |
Zn(N3)2 | Ga(N3)3 | Ge | As | Se(N3)4 | BrN3 | Kr | ||
| RbN3 | Sr(N3)2 | Y | Zr(N3)4 | Nb | Mo | Tc | Ru(N3)63− | Rh(N3)63− | Pd(N3)2 | AgN3 | Cd(N3)2 | In | Sn | Sb | Te | IN3 | Xe(N3)2 | ||
| CsN3 | Ba(N3)2 | Hf | Ta | W | Re | Os | Ir(N3)63− | Pt(N3)62− | Au(N3)4− | Hg2(N3)2, Hg(N3)2 |
TlN3 | Pb(N3)2 | Bi(N3)3 |
Po | At | Rn | |||
| Fr | Ra(N3)2 | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |||
| ↓ | |||||||||||||||||||
| La | Ce(N3)3, Ce(N3)4 |
Pr | Nd | Pm | Sm | Eu | Gd(N3)3 | Tb | Dy | Ho | Er | Tm | Yb | Lu | |||||
| Ac | Th | Pa | UO2(N3)2 | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | |||||
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