Sn

Tin is a chemical element with the symbol Sn (Latin: stannum) and atomic number 50. This silvery, malleable poor metal that is not easily oxidized in air and resists corrosion, is found in many alloys and is used to coat other metals to prevent corrosion. Tin is obtained chiefly from the mineral cassiterite, where it occurs as an oxide. It can be alloyed with copper to make bronze. Pewter alloys contain from 85% up to 99% tin.

Tin is a malleable, ductile, highly crystalline, silvery-white metal; when a bar of tin is bent, a strange crackling sound known as the tin cry can be heard due to the breaking of the crystals. This metal resists corrosion from distilled, sea and soft tap water, but can be attacked by strong acids, alkalis, and by acid salts. Tin acts as a catalyst when oxygen is in solution and helps accelerate chemical attack. Tin forms the dioxide SnO2 when it is heated in the presence of air. SnO2, in turn, is feebly acidic and forms stannate (SnO32) salts with basic oxides. Tin can be highly polished and is used as a protective coat for other metals in order to prevent corrosion or other chemical action. This metal combines directly with chlorine and oxygen and displaces hydrogen from dilute acids. Tin is malleable at ordinary temperatures but is brittle when it is cooled.

TECHNICAL DATA
Symbol	Sn	Density (20°C)/gcm^-3	a5.769
Atomic number	50	Density (20°C)/gcm^-3	?7.265
No. of naturally occurring isotopes	10	Melting point /°C	232
Atomic weight	118.69(+/-3)	Boiling point /°C	2623
Electronic configuration	[Kr]4d'°	ΔH_fus/kJmol^-1	7.07
r^IV (covalent)/pm	140.5	ΔH_vap/kJmol^-1	296
r^IV (ionic, 6-coordinate)/pm	69	ΔH_{f(monoatomic gas)}/kJmol^-1	300.7
r^IV (ionic, 6-coordinate)/pm	118	Ionization energy/kJmol^-1 I	708.4
Electronegativity χ	1.8	Ionization energy/kJmol^-1 II	1411.4
Electrical resistivity (20°C)/μohm cm	?llx 10^-6	Ionization energy/kJmol^-1 III	2942.2
Band gap E_g/kJ mol^-1	α7.7, ?0	Ionization energy/kJmol^-1 IV	3929.3

EVAPORATION TECHNIQUES
Temperature (^oC) @Vap. Pressure			Techniques				Remarks
10^-8 Torr	10^-6 Torr	10^-4 Torr	Electron Beam	Crucible	Coil	Boat	Remarks
682	807	997	Excellent	Al₂O₃	Tungsten	Molybdenum	Wets Molybdenum; use Ta liner in EB guns

Sn
Precision Alloys
Alloy		Din Symbol	Electrical Resistivity at 20°C	Conductivity	Density
			μΩ/Cm	S/W	g/cm3
NEXZERAN?		CuMn7Sn	29.00	3.45	8.50

Sputtering Targets
Matierial	Symbol	Atomic Number	Thermal Conductivity	Theoretical Density
			W/m.K	g/cc
Tin_Sn	Sn	50	66.6	7.3
ITO	In2O3/SnO2 90/10 wt%	-	-	-

Evaporation Materials
Matierial	Symbol	Atomic Number	Thermal Conductivity	Theoretical Density
			W/m.K	g/cc
Sn ( pellets )	Sn	50	66.6	7.3
ITO ( pieces )	In2O3/SnO2 90/10 wt%	-	-	-

Below is the periodic table of chemical elements.The elements in red are the ones Nexteck's product contain. Click them, you will come to the details.

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