Title: Bismuthine
CAS Registry Number: 18288-22-7
Additional Names: Bismuth trihydride; Bismutan
Molecular Formula: BiH3
Molecular Weight: 212.00
Percent Composition: Bi 98.58%, H 1.43%
Literature References: Prepn: Wiberg, Mödritzer, Z. Naturforsch. 12b, 123 (1957); Amberger, Ber. 94, 1447 (1961).
Properties: Thermally unstable liquid, bp 16.8° (est).
Boiling point: bp 16.8° (est)
Use: In manuf of Ge or Si semiconductors, Scott et al., US 2910394 (1959 to Int'l Standard Electric).
Bisoctrizole Bisoprolol Bisoxatin Acetate Bisphenol B Bispyribac

Bismuthine-2D-IR-MMW-dimensions.png Bismuthine-3D-sticks.png
CAS number 18288-22-7 YesY
PubChem 9242
ChemSpider 8886 N
Jmol-3D images Image 1
Molecular formula BiH3
Molar mass 212.00 g/mol
Appearance colourless gas
Density 0.008665 g/mL (20 °C)
Boiling point 16.8 °C (extrapolated)
Molecular shape trigonal pyramidal
Related compounds
Related hydrides Ammonia
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Bismuthine (IUPAC name: bismuthane) is the chemical compound with the formula BiH3. As the heaviest analogue of ammonia, BiH3 is unstable, decomposing to bismuth metal well below 0 °C. This compound adopts the expected pyramidal structure with H-Bi-H angles of around 90°.[1]

The term bismuthine may also refer to a member of the family of organobismuth(III) species having the general formula BiR
, where R is an organic substituent. For example, Bi(CH3)3 is trimethylbismuthine.