Tin

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Catalog Number
ACM7440315-4
Product Name
Tin
Structure
Structure
CAS
7440-31-5
Category
Nanoparticles & Nanopowders
Description
White TIN is an almost silver-white, ductile, malleable, lustrous solid. mp 232° C, bp: 2507°C. Density: 7.3 g/cm³. Pure white tin becomes non-metallic powdery gray tin if held for a sustained period at temperatures less than 13°C.;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals, OtherSolid; OtherSolid; OtherSolid, Liquid;WHITE CRYSTALLINE POWDER.;Gray to almost silver-white, ductile, malleable, lustrous solid.;Appearance and odor vary depending upon the specific organotin compound.;Gray to almost silver-white, ductile, malleable, lustrous solid.
Synonyms
Tin Powder,Tin element
IUPAC Name
tin
Molecular Weight
118.71
Molecular Formula
Sn
Canonical SMILES
[Sn]
InChI
1S/Sn,ATJFFYVFTNAWJD-UHFFFAOYSA-N
InChI Key
ATJFFYVFTNAWJD-UHFFFAOYSA-N
Boiling Point
4545 °F at 760 mm Hg (NIOSH, 2016);2507 °C
Melting Point
231.9 °C (lit.)
Density
7.28 (NIOSH, 2016);7.265 (white); 5.769 (gray);7.2 g/cm3;7.28;7.28
Solubility
Insoluble (NIOSH, 2016);SOL IN HYDROCHLORIC ACID, SULFURIC ACID, AQUA REGIA, ALKALI; SLIGHTLY SOL IN DIL NITRIC ACID; INSOL IN WATER;Solubility in water: none;Insoluble
Application
At ordinary temperatures tin is stable in air. It actually forms a very thin protective oxide film. In powder form, and especially in the presence of moisture, it oxidizes. When heated with oxygen it forms tin(IV) oxide, SnO2.Tin reacts with all halogens forming their halides. Reaction with fluorine is slow at ordinary temperatures; however, chlorine, bromine and iodine readily react with the metal.

Tin is attacked by concentrated acids. With dilute acids the reaction may be slow or very slow. The metal readily reacts with hot concentrated hydrochloric acid and aqua regia but slowly with cold dilute hydrochloric acid. The reaction also is slow with hot dilute sulfuric acid, which dissolves the metal, particularly in the presence of an oxidizing agent. The reaction with nitric acid is generally slow. Hot concentrated acid converts the metal to an insoluble hydrated tin(IV) oxide. The reaction is rapid with moist sulfur dioxide or sulfurous acid, chlorosulfonic, and pyrosulfuric acids. Organic acids such as, acetic, oxalic, and citric acids react slowly with the metal, particularly in the presence of air or an oxidizing agent.

Strong alkaline solutions of caustic soda or caustic potash dissolve tin forming the stannate, Na2SnO3, or K2SnO3. The metal is stable in dilute solutions of ammonia or sodium carbonate.

Tin dissolves in solutions of oxidizing salts such as potassium chlorate or potassium persulfate. The metal does not react with neutral salts in aqueous solutions. In air, tin reacts slowly with neutral salts.

The metal does not combine directly with hydrogen, nitrogen or ammonia gas.
Storage
room temp
Assay
99.998% trace metals basis
Autoignition Temperature
630 °C (cloud); 430 °C (layer)
Color/Form
Cubic (gray); tetragonal (white); rhomboidal (tin brittle);Almost silver-white, lustrous soft, very malleable & ductile metal; only slightly tenacious; easily powdered; when bent emits crackling "tin cry"; brittle @ 200 °C; brinell hardness 2.9; at -40 °C crumbles to gray amorphous powder (gray tin); slowly changes back above 20 °C to white tin
Complexity
0
Covalently-Bonded Unit Count
1
EC Number
231-141-8
Exact Mass
119.902202g/mol
Form
foil
Formal Charge
0
H-Bond Acceptor
0
H-Bond Donor
0
Heat of Vaporization
296.4 kJ/mol
Heavy Atom Count
1
ICSC Number
1535
MDL Number
MFCD00133862
Monoisotopic Mass
119.902202g/mol
Odor
Odorless
Other Experimental
NATURALLY OCCURRING ISOTOPES: 112 (0.95%); 114 (0.65%); 115 (0.34%); 116 (14.24%); 117 (7.57%); 118 (24.01%); 119 (8.59%); 120 (32.97%); 122 (4.71%); 124 (5.98%);Tin has two allotropic forms at normal pressure; resists distilled, sea and soft tap water; oxygen in soln accelerates attack; when heated in air, tin oxide forms;Heat of fusion: 7.03 kJ/mol /white tin/;Specific Heat: 27.0 J/mol-K (white); 25.8 J/mol-K (grey) @ 25 °C;Thermal conductivity: 0.64 watts/cm °C @ 25 °C, 760 mm Hg;Transformation temp: (beta in equilibrium with alpha) 13.2 °C;Specific heat: 222 J/kg K @ 20 °C;Latent heat of fusion: 7.08 kJ/(g atom);Thermal conductivity: 65 W/m K @ 20 °C;Coefficient of linear expansion: 19.9X10-6 @ 0 °C; 23.8X10-6 @ 100 °C;Shrinkage on solidification: 2.8%;Resistivity of white tin: 11.0 u-Ohm cm @ 0 °C; 15.5 u-Ohm cm @ 100 °C; 20.0 u-Ohm cm @ 200 °C; 22.0 u-Ohm cm @ mp (solid); 45.0 u-Ohm cm @ mp (liquid);Volume conductivity: 15% IACS;Tensile strength, as cast: 14.5 MPa @ 15 °C; 4.5 Mpa @ 200 °C; 20.0 MPa @ -40 °C; 87.5 MPa @ -120 °C
Packaging
100 cm2 in rigid mailer
Physical Description
TIN is a white TIN is an almost silver-white, ductile, malleable, lustrous solid. mp 232° C, bp: 2507°C. Density: 7.3 g/cm³. Pure white tin becomes non-metallic powdery gray tin if held for a sustained period at temperatures less than 13°C.;DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals, OtherSolid; OtherSolid; OtherSolid, Liquid;WHITE CRYSTALLINE POWDER.;Gray to almost silver-white, ductile, malleable, lustrous solid.;Appearance and odor vary depending upon the specific organotin compound.;Gray to almost silver-white, ductile, malleable, lustrous solid.;
Quality Level
100
Rotatable Bond Count
0
RTECS Number
XP7320000
Stability
STABLE IN AIR, BUT WHEN IN POWDER FORM IT OXIDIZES, ESP IN PRESENCE OF MOISTURE;stablilizes <18 °C
Surface Tension
544 mN/m @ mp (231.9 deg C);
Topological Polar Surface Area
0A^2
UNII
387GMG9FH5
UN Number
3089
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);1 Pa @ 1224 °C;0 mmHg (approx);0 mmHg (approx)
Viscosity
1.85 mPa-s (=cP)@ 240 °C (MP)
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