Element Tin

Tin ElementIt is a chemical element with the symbol Sn (from Latin: stannum) and atomic number 50.
Tin is a silvery metal that characteristicly has a faint yellow hue. Tin, like indium, is soft enough to be cut without much force.
When a bar of tin is bent the so-called “tin cry” can be heard as a result of sliding tin crystals reforming; this trait is shared by indium, cadmium and frozen mercury.
Tin is a soft, malleable, ductile and highly crystalline silvery-white metal. When a bar of tin is bent, a crackling sound known as the “tin cry” can be heard from the twinning of the crystals.

Names and Identifiers

Chemical Formula:Sn
CAS:7440-31-5
Molecular Weight:118.70100 g/mol
EC Number :231-141-8
MDL Number:MFCD00133862
Color:silvery lustrous gray/ silvery-white
Other Names:n/a
PubChem CID:5352426
IUPAC Name:Tin
Inchl:InChI=1S/Sn
InChI Key:ATJFFYVFTNAWJD-UHFFFAOYSA-N
Canonical SMILES:[Sn]
ICSC Number:1535

Physical & Chemical Properties

Phase:Solid
Density:6.99  g/cm³
Boiling Point:2875 K ​(2602 °C, ​4716 °F)
Melting Point:505.08 K ​(231.93 °C, ​449.47 °F)
Molecular Formula:Sn
Flash Point:2270°C
Exact Mass:119.90200
Symbol:Globally Harmonized System of Classification
Signal Word:Warning
Hazard Statements:H319-H335
Precautionary Statements:P305 + P351 + P338
Hazard Codes:Xi
Risk Phrases:R37/38;R36/37/38
Safety Phrases:SS26-S24/25-S22-S36/37/39-S33-S16-S36/37
RIDADR:UN 3264 8/PG 2
WGK Germany:1
RTECS:XP7320000
Packaging Group:III
Hazard Class:4.1

Tin has ten stable isotopes, with atomic masses of 112, 114 through 120, 122 and 124, the greatest number of any element.

Naturally occurring isotopes

IsotopeMass/DaNatural abundance (atom %)Nuclear spin (I)Magnetic moment (μ/μN)
112Sn111.904826 (5)0.97 (1)0
114Sn113.902784 (4)0.66 (1)0
115Sn114.903348 (3)0.34 (1)1/2-0.91884
116Sn115.901747 (3)14.54 (9)0
117Sn116.902956 (3)7.68 (7)1/2-1.00105
118Sn117.901609 (3)24.22 (9)0
119Sn118.903311 (3)8.59 (4)1/2-1.04729
120Sn119.9021991 (29)32.58 (9)0
122Sn121.9034404 (30)4.63 (3)0
124Sn123.9052743 (17)5.79 (5)0

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
110Sn109.907854.1 hEC to 110In0
111Sn110.9077435 mEC to 111In7/20.61
113Sn112.905174115.1 dEC to 113In1/2-0.879
121Sn120.9042391.128 dβ to 121Sb3/20.698
123Sn122.905723129.2 dβ to 123Sb11/2-1.370
125Sn124.9077859.63 dβ to 125Sb11/2-1.35
126Sn125.90765100000 yβ to 126Sb0
127Sn126.910352.12 hβ to 127Sb11/2

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