氰
氰 | |
---|---|
IUPAC Ethanedinitrile | |
别名 | 氰气 |
识别 | |
CAS |
460-19-5 |
PubChem | 9999 |
ChemSpider | 9605 |
SMILES |
|
Beilstein | 1732464 |
Gmelin | 1090 |
UN编号 | 1026 |
EINECS | 207-306-5 |
ChEBI | 29308 |
RTECS | GT1925000 |
MeSH | cyanogen |
C2N2 | |
52.04 g·mol⁻¹ | |
0.95 g/cm3, −21 °C | |
熔点 | −28 °C |
−21 °C | |
450 ml/100 ml (20 °C) | |
热力 | |
309.07 kJ mol−1 | |
−1.0978~1.0942 MJ mol−1 | |
S⦵298K | 241.57 J K−1 mol−1 |
危险 | |
警示术语 | R:R12, R23, R50/53 |
S:S1/2, S16, S33, S45, S63 | |
MSDS | inchem.org |
608-011-00-8 | |
F+ T+ N | |
NFPA 704 | |
6.6–42.6% | |
二溴基氰乙酰胺 | |
氰在标准
氰的
- H2NC(O)C(O)NH2 → N≡C‒C≡N + 2 H2O
制 备
[编辑]- N2+2C -
高温 → (CN)2
- 2 Hg(CN)2 → (CN)2 + Hg2(CN)2
- 2 CuSO4 + 4 KCN → (CN)2 + 2 CuCN + 2 K2SO4
- 2KCN → 2K + (CN)2
反 应
[编辑]氰的歧化
- (CN)2 + 2OH− → CN− + OCN− + H2O
氰在氧气
历史
[编辑]氰在 1815
参 见
[编辑]参考 资料
[编辑]- ^ T. K. Brotherton, J. W. Lynn. The Synthesis And Chemistry Of Cyanogen. Chemical Reviews. 1959, 59 (5): 841 – 883. doi:10.1021/cr50029a003.
- ^ A. A. Breneman. Showing the Progress and Development of Processes for the manufacture of Cyanogen and its Derivates (in: THE FIXATION OF ATMOSPHERIC NITROGEN. Journal of the American Chemical Society. 1959, 11 (1): 2–28. doi:10.1021/ja02126a001.
- ^ Thomas, N.; Gaydon, A. G.; Brewer, L., Cyanogen Flames and the Dissociation Energy of N2, The Journal of Chemical Physics, March 1952, 20 (3): 369–374
- ^ Gay-Lussac, J. L. Recherches sur l'acide prussique. Annales de Chimie. 1815, 95: 136–231 [2020-09-13]. (
原始 内容 存 档于2021-03-15). Gay-Lussac names cyanogen on p. 163. - ^ Crookes, William (编). Photographic News: A Weekly Record of the Process of the Photography: 11. 1859.
- ^ Comet's Poisonous Tail (页面
存 档备份,存 于互联网档案 馆). - ^ Halley's Comet 100 years ago (页面
存 档备份,存 于互联网档案 馆).
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