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TIN
(Sn)
ESPI
Metals manufactures and sells high purity Tin
ingot, Tin
pieces, Tin
rod, Tin
wire, Tin
sheet, Tin
foil, Tin
powder, Tin
shot, and Tin pellets. To place an order please send an Email,
call or fax using the ordering
information.
MATERIAL
OVERVIEW
Characteristics:
Silver-white, ductile solid (beta-form). Changes to
brittle grey (alpha) tin at temperatures below 18°C
but the transition is normally very slow. Soluble in
acids, and hot potassium hydroxide solution. Insoluble
in water. Elemental tin has low toxicity, but most of
it’s compounds are toxic.
Tin
resists distilled sea and soft tap water, but is
attacked by strong acids, alkalis, and acid salts.
Oxygen in solution accelerates the attack. When heated
in air, tin forms Sn2,
which is feebly acid, forming stannate salts with
basic oxides. The most important salt is the chloride,
which is used as a reducing agent and as a mordant in
calico printing. Tin salts sprayed onto glass are used
to produce electrically conductive coatings. These
have been used for panel lighting and for frost-free
windshields. Most window glass is now made by floating
molten glass on molten tin (float glass) to produce a
flat surface (Pilkington process).
Hazards:
All organic tin compounds are toxic. Tolerance, 2 mg/m3 of air; (organic compounds, as Sn), 0.1 mg/m3
of
air.
GENERAL
PROPERTIES
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Symbol:
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Sn
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Atomic
Number:
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50
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Atomic
Weight:
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118.69
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Density:
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7.31
gm/cc
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Melting
Point:
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231.9681
oC
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Boiling
Point:
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2270
oC
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Thermal
Conductivity:
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0.668
W/cm/oK
@ 298.2 oK
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Electrical
Resistivity:
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11.0
microhm-cm @ 0 oC
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Electronegativity:
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1.8
Paulings
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Specific
Heat:
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0.0510
Cal/g/oK
@ 25 oC
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Heat
of Vaporization:
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70
K-Cal/gm atom at 2270 oC
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Heat
of Fusion:
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1.72
Cal/gm mole
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Material
Safety Data Sheet – MSDS
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Tin
MSDS
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