Specification
Description
DryPowder; DryPowder, PelletsLargeCrystals, OtherSolid; OtherSolid; PelletsLargeCrystals;Solid
Synonyms
Bismuth nanopowder, bismuth nanocrystals, Nano Bi, Bismuth nanopowder suspension, aqueous Bismuth nanoparticle solution, Bismuth nanofluid
InChI Key
JCXGWMGPZLAOME-UHFFFAOYSA-N
Boiling Point
1564 DEG +/-5 °C, 760 MM HG;2840°F
Melting Point
271 °C;519.8°F
Density
9.78 @ 20 °C/4 °C
Solubility
INSOL IN COLD OR HOT WATER; SOL IN NITRIC ACID, AQUA REGIA, HOT SULFURIC ACID;SOL IN CONCENTRATED HYDROCHLORIC ACID
Appearance
Gray to black powder
Bulk Density
0.05-0.7 g/cm³
Color/Form
Gray white soft metal;HEXAGONAL SILVER-WHITE CRYSTALS;GRAYISH WHITE WITH REDDISH TINGE AND BRIGHT METALLIC LUSTER;PINKISH-SILVER, HARD, BRITTLE METAL
Covalently-Bonded Unit Count
1
Heat of Vaporization
178,632 J/mol
Monoisotopic Mass
208.9804g/mol
Other Experimental
POOR CONDUCTOR OF ELECTRICITY; HAS GREATEST HALL EFFECT OF ANY METAL, THAT IS, ITS RESISTANCE INCREASES WHEN PLACED IN A MAGNETIC FIELD;MASS NUMBER (NATURAL ISOTOPES): 209; ATOMIC RADIUS= 1.46 A; IONIC (CRYSTAL) RADII= 1.20(+3)A; ELECTRONEGATIVITY (PAULING SCALE): 1.9;THERMAL CONDUCTIVITY (0.018 CAL/SEC/CC @ 250 °C) IS LOWEST OF ALL METALS EXCEPT MERCURY;EXPANDS 3.32% ON SOLIDIFICATION; ATOMIC NUMBER: 83;ORBITAL ELECTRONS: (XE)4F(14)-5D(10)65(2)-6P(3);COLD SOLN OF BI GIVE WHITE PPT: WITH SODIUM HYDROXIDE TURNING YELLOW ON BOILING; WITH HYDROCHLORIC ACID SOL IN EXCESS OF ACID;SENSITIVITY OF ATOMIC ABSORPTION: 0.22 UG/ML FOR 1% ABSORPTION IN AIR/C2H2 MIXTURE AT 2230.6 A;SOLN IN HYDROCHLORIC ACID OR NITRIC ACID YIELD WITH MUCH WATER A WHITE PPT BLACKENED BY HYDROGEN SULFIDES;WHEN HEATED IN AIR IT BURNS WITH A BLUE FLAME, FORMING YELLOW FUMES OF THE OXIDE;ELECTRICAL RESISTIVITY HIGHER IN SOLID THAN IN LIQUID STATE; EXTRUDABLE @ 437 °F; BRINELL HARDNESS 7; HIGHLY DIAMAGNETIC (MASS SUSCEPTIBILITY -1.35X10+6);CONDUCTANCE IN SOLID STATE IS ONLY 0.48 OF LIQUID CONDUCTANCE;DULL GRAY POWDER; PARTICLES ARE OF NO GREATER DIAMETER THAN 15 U (0.015 MM); EASILY DISPERSED IN WATER /PRECIPITATED BISMUTH/
Specific Surface Area
15-30 m2/g
Stability
SUPERFICIALLY OXIDIZED BY AIR, FREQUENTLY BECOMING IRIDESCENT;WHEN HEATED IN AIR IT FORMS BISMUTH TRIOXIDE
Thermal Expansion
(25 °C) 13.4 µm·m-1·K-1
Vapor Pressure
78 mm Hg at 1266 °C; 7.8 mm at 1053 °C; 0.78 mm Hg at 893 °C;<0.1 mmHg