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GOLD
(Au)
MATERIAL
OVERVIEW
Characteristics:
Yellow, ductile metal, relatively soft, does not
corrode in air, but is tarnished by sulfur. Chemically
nonreactive and nontoxic; attacked by chlorine and
cyanide solutions in presence of oxygen. Soluble in
aqua regia; insoluble in acids. Excellent reflector of
infrared and heat. Extremely high light reflectivity.
Nontoxic.
GENERAL
PROPERTIES
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Symbol:
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Au
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Atomic
Number:
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79
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|
Atomic
Weight:
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196.9665
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Density:
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18.88
gm/cc
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|
Melting
Point:
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1064.43
oC
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|
Boiling
Point:
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3080
oC
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|
Thermal
Conductivity:
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3.18
W/cm/oK
@ 298.2 oK
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|
Electrical
Resistivity:
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2.214
microhm-cm @ 20 oC
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|
Electronegativity:
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2.4
Paulings
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|
Specific
Heat:
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0.308
Cal/g/oK
@ 25 oC
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|
Heat
of Vaporization:
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81.8
K-Cal/gm atom at 3080 oC
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|
Heat
of Fusion:
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3.03
Cal/gm mole
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TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
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3N5
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4N
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5N
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6N
|
|
Ag
|
190
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<30
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3
|
-
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Cu
|
10
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2
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1
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-
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Fe
|
45
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7
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0.4
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-
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Mg
|
10
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4
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0.4
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0.5
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Pb
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-
|
-
|
-
|
-
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Si
|
5
|
1
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0.1
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-
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Pd
|
110
|
17
|
-
|
-
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Pt
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<130
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<20
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-
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-
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GOLD
WIRE
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Material
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Purity
|
|
Gold
Wire .005” to .090”
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3N5,
4N, 5N
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Wire
diameters are available in increments of .001”.
Wire is spooled to order and sold by the foot or
meter.
GOLD
ROD
|
Material
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Purity
|
|
Gold
Rod .0625”
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3N5,
4N, 5N
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Gold
Rod .125”
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3N5,
4N, 5N
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|
Gold
Rod .250”
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3N5,
4N, 5N
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|
Gold
Rod .500”
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3N5,
4N, 5N
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|
Gold
Rod .625”
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3N5,
4N, 5N
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|
Gold
Rod .750”
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3N5,
4N, 5N
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Gold
Rod 1”
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3N5,
4N, 5N
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Additional
diameters can be drawn in 2-3 days.
Rod is cut to order and sold by the inch or foot.
GOLD
FOIL
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Material
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Purity
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Gold
Foil .001”
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3N5,
4N, 5N
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Gold
Foil .002”
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3N5,
4N, 5N
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Gold
Foil .003”
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3N5,
4N, 5N
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|
Gold
Foil .004”
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3N5,
4N, 5N
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|
Gold
Foil .005”
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3N5,
4N, 5N
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|
Gold
Foil .006”
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3N5,
4N, 5N
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|
Gold
Foil .007”
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3N5,
4N, 5N
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|
Gold
Foil .008”
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3N5,
4N, 5N
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Gold
Foil .009”
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3N5,
4N, 5N
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Foil
is cut to order and sold by the square inch or square
foot.
GOLD
SHEET
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Material
|
Purity
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Gold
Sheet .010” to 1.0”
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3N5,
4N, 5N
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Sheet
thicknesses are available in increments of .001”.
Sheet is cut to order and sold by the square inch or square foot.
GOLD
SPUTTERING TARGETS
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Material
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Purity
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Gold
Sputtering Target 2"D X .125"T
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3N5,
4N, 5N
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Gold
Sputtering Target 2"D X .250"T
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3N5,
4N, 5N
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Gold
Sputtering Target 3"D X .125"T
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3N5,
4N, 5N
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Gold
Sputtering Target 3"D X .250"T
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3N5,
4N, 5N
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Gold
Sputtering Target 4"D X .125"T
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3N5,
4N, 5N
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Gold
Sputtering Target 4"D X .250"T
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3N5,
4N, 5N
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Additional
sizes and sputtering targets produced from compounds
are available
upon request.
GOLD
POWDER, SHOT, PELLETS, & INGOT
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Material
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Purity
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Gold
Shot 3-6mm
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3N5,
4N, 5N, 6N
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Gold
Pellets .250"D
X .125"L
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3N5,
4N, 5N
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Gold
Pellets .250"D X .250"L
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3N5,
4N, 5N
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Gold
Ingot
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3N5,
4N, 5N
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Gold
Powder-100 Mesh
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3N5,
4N, 5N
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Gold
Powder-325 Mesh
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3N5,
4N, 5N
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Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
GOLD
COMPOUNDS
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Material
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Purity
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Ammonium
Tetrachloroaurate Hydrate (NH4)AuCl4 -xH2O -325 Mesh
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4N
5N
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Bromoauric
Acid HAuBr4-xH2O
-325 Mesh
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4N
5N
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Chloroauric
Acid HAuCl4-xH2O
-325 Mesh
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4N
5N
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Gold
Acetate Au(O2CCH3)3
-325 Mesh
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4N
5N
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Gold
Bromide AuBr3-xH2O
-325 Mesh
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4N
5N
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Gold
Chloride AuCl -325 Mesh
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4N
5N
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Gold
Chloride AuCl3-xH2O
-325 Mesh
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4N
5N
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Gold
Cyanide AuCN -325 Mesh
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4N
5N
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Gold
Hydroxide Au(OH)3
-325 Mesh
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4N
5N
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Gold
Iodide AuI -325 Mesh
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4N
5N
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Gold
Selenate Au2(SeO4)3
-325 Mesh
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4N
5N
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Gold
Selenite Au2(SeO3)3
-325 Mesh
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4N
5N
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Gold
Sulfide AuS -325 Mesh
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4N
5N
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Gold
Telluride AuTe2
-325 Mesh
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4N
5N
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Potassium
Dicyanoaurate KAu(CN)2 -325 Mesh
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4N
5N
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Potassium
Tetrabromoaurate KAuBr4-xH2O -325 Mesh
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4N
5N
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Potassium
Tetrachloroaurate KAuCl4-xH2O -325 Mesh
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4N
5N
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Potassium
Tetrathiocyanoaurate K[Au(SCN)4] -325 Mesh
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4N
5N
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Sodium
Aurothiomalate C4H3AuO4S-Na
-325 Mesh
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4N
5N
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Sodium
Aurothiosulfate Na3Au(S2O3)2-2H2O
-325 Mesh
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4N
5N
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Sodium
Dicyanoaurate NaAu(CN)2
-325 Mesh
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4N
5N
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Sodium
Tetrabromoaurate NaAuBr4-xH2O -325 Mesh
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4N
5N
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Sodium
Tetrachloroaurate NaArCl4-2H2O -325 Mesh
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4N
5N
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Tetraamminegold
Nitrate Au(NH3)4(NO3)3 -325 Mesh
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4N
5N
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Triethylphosphine
Gold Chloride AuP(C2H5)3Cl-325 Mesh
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4N
5N
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Triphenylphosphine
Gold Chloride AuP(C6H5)3Cl -325 Mesh
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4N
5N
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Compounds
are packaged to order and sold by the gram or
kilogram.
For Gold single crystals see “Single Crystals.”
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