50 Sn 118.710

Tin

post-transition · Group 14 · Period 5

Atomic properties

Atomic number
50
Z
Atomic weight
118.710[1]
g/mol
Density
7.265 g/cm³
at STP
Melting point
231.93 °C
at 1 atm
Boiling point
2602 °C
at 1 atm
Crystal structure
tetragonal
Electron config.
[Kr] 4d¹⁰ 5s² 5p²
Oxidation states
+2, +4
most common

Market data

Spot price
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Raw material sources & pricing

Raw Material FormGrade/QualityPrice Paid by SmeltersMajor SourcesNotes
Cassiterite Ore (Primary)60-72% SnO₂$21,000-25,000/MTMyanmar, Indonesia, ChinaAlluvial deposits, easier to process
Cassiterite Ore (Hard Rock)0.5-2% SnO₂$200-800/MT oreAustralia, Bolivia, MalaysiaRequires crushing and concentration
Tin Concentrates20-30% Sn$6,000-9,000/MTVariousLow-grade, complex processing
Secondary Tin (Scrap)Variable$15,000-28,000/MTElectronics recyclingGrowing importance
Cassiterite Ore - Primary Raw Material

Current Market Price: $21,000-25,000/MT (70-80% of LME spot price for 60% Sn ore) Major Global Reserves: China: 1.1 million MT (24% of world reserves) - Southeast Yunnan tin belt Indonesia: 800,000 MT - Bangka-Belitung islands Brazil: 700,000 MT - Amazon region deposits Australia: 370,000 MT - Tasmania and Queensland Bolivia: 400,000 MT - Potosí region 2025 Production Leaders: China: 68,000 MT (18% of global production) Myanmar: 54,000 MT (Wa State region) Indonesia: 44,000 MT (recovering from export disruptions) Peru: 28,000 MT Raw Material Form Grade/Quality Price Paid by Smelters Major Sources Notes Cassiterite Ore (Primary) 60-72% SnO₂ $21,000-25,000/MT Myanmar, Indonesia, China Alluvial deposits, easier to process Cassiterite Ore (Hard Rock) 0.5-2% SnO₂ $200-800/MT ore Australia, Boli

⚠️ Seawater Tin Extraction

Commercial Viability: NOT ECONOMICALLY VIABLE Concentration: 0.003 ppm (extremely low) Chemical Form: Likely as tin hydroxide complexes [Sn(OH)₄] at seawater pH Status: No commercial seawater tin extraction exists anywhere globally. The concentration is approximately 1,000 times lower than aluminum in seawater, making extraction completely uneconomical. Note: Unlike magnesium, lithium, and bromine which are successfully extracted from seawater, tin's extremely low concentration makes seawater extraction impractical.

Production cost analysis

Cost Component$/MT Tin% of Total CostNotes
Cassiterite Ore (1.25-1.5 MT needed)$15,000-18,00055-65%For 60-70% SnO₂ concentrate
Energy (Electricity + Fuel)$2,000-3,5008-12%Lower than aluminum due to lower melting point
Labor$1,500-2,5006-9%Varies by country
Flux & Reductants$800-1,2003-4%Coal, limestone, silica
Other Materials & Overhead$3,200-4,80012-17%Maintenance, refractories, transport
Total Production Cost$22,500-30,000100%Compare to selling price: $30,000-31,200/MT

Energy consumption breakdown

Process StageEnergy Consumption% of Total EnergyEnergy TypeKey Operations
Smelting (Reduction)20-28 MJ/kg55-60%Coal/Coke + ElectricityReduction at 1200-1300°C with carbon
Ore Concentration5-8 MJ/kg15-18%ElectricityCrushing, gravity separation, flotation
Refining4-6 MJ/kg12-15%Electricity/GasElectrolytic or thermal refining
Roasting (if needed)3-5 MJ/kg8-10%Natural GasFor sulfide ores at 600-700°C
Material Handling2-3 MJ/kg5-7%Electricity/DieselTransport, feeding, product handling
Smelting Process Details (55-60%)

Furnace Operation: 40-45% - Reverberatory or rotary furnaces Carbon Reduction: 10-12% - SnO₂ + C → Sn + CO₂ Heat Losses: 3-4% - Maintaining temperature Slag Treatment: 2-3% - Recovery of residual tin

Modern TSL Furnace Benefits

Higher Recovery: 95-98% tin recovery vs 90-93% traditional Energy Efficiency: 20-30% less energy consumption Flexibility: Can process complex feeds Environmental: Better emission control

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical PurityPrice Range (USD/kg)Main Applications
Tin Ingot (Grade A)Sn118.71 g/mol99.85-99.99%$30.00-31.20Soldering, electronics, alloys
Tin Shot/PelletsSn118.71 g/mol99.9%+$31.00-32.50Chemical applications, plating
Tin Powder (Atomized)Sn118.71 g/mol99.5-99.9%$35.00-45.00Powder metallurgy, chemicals
Tin(II) ChlorideSnCl₂·2H₂O225.65 g/mol98-99%$8.00-12.00Electroplating, reducing agent
Tin(IV) ChlorideSnCl₄260.52 g/mol99%+$15.00-25.00Glass coatings, catalysts
Tin(II) OxideSnO134.71 g/mol99-99.9%$25.00-35.00Glass manufacturing, catalysts
Tin(IV) OxideSnO₂150.71 g/mol99.5-99.99%$20.00-40.00Ceramics, sensors, catalysts
Stannous FluorideSnF₂156.71 g/mol97-99%$80.00-120.00Toothpaste, dental care
Tin(II) SulfateSnSO₄214.77 g/mol96-98%$12.00-18.00Electroplating baths
Sodium StannateNa₂SnO₃·3H₂O266.73 g/mol95-98%$8.00-15.00Electroplating, ceramics
Lead-Free SolderSn-Ag-Cu alloysVariableVarious$35.00-60.00Electronics assembly
Organotin CompoundsVarious R₂SnX₂Variable95-99%$50.00-500.00PVC stabilizers, catalysts

Suppliers by country

🇨🇳 China

CompanyProduct FormsSpecialties
Yunnan Tin CompanyIngots, chemicals, solders, tin powderWorld's largest tin producer, integrated operations
Yunnan Chengfeng Non-ferrousRefined tin, by-products (indium, silver)Second largest Chinese producer
China Tin GroupTin metal, alloys, chemicalsState-owned, integrated supply chain

🇮🇩 Indonesia

CompanyProduct FormsSpecialties
PT TimahTin ingots, tin chemicals, alloysState-owned, integrated mining to marketing
PT Refined Bangka TinRefined tin ingotsPrivate smelter, Bangka island

🇲🇾 Malaysia / 🇸🇬 Singapore

CompanyProduct FormsSpecialties
Malaysia Smelting Corp (MSC)Refined tin, custom smelting, specialty alloysTSL furnace technology, low carbon footprint
Tin Industries (STI)Refined tin ingotsJoint venture with Yunnan Tin

🇵🇪 Peru / 🇧🇴 Bolivia

CompanyProduct FormsSpecialties
Minsur S.A.Refined tin, high-purity tinSan Rafael mine (world's largest underground tin mine)
EM Vinto (Bolivia)Tin ingots, concentratesState-owned smelter

🇹🇭 Thailand

CompanyProduct FormsSpecialties
ThaisarcoRefined tin, tin alloysPURITY™ brand tin, custom alloys

🇧🇷 Brazil

CompanyProduct FormsSpecialties
Mineração Taboca (Minsur Group)Tin concentrates, refined tinPitinga mine, integrated operations

Market demand by product form

Product FormGlobal Market ShareKey MarketsMain DriversGrowth Rate (CAGR)
Solder & Electronics49%Asia (75%), Americas (15%)Electronics, lead-free mandate6.5%
Tinplate16%GlobalFood packaging2.5%
Chemicals15%Asia, Europe, AmericasPVC stabilizers, glass coatings4.0%
Lead-acid Batteries7%GlobalAutomotive, energy storage3.5%
Brass & Bronze5%GlobalIndustrial applications2.0%
Float Glass2%Asia, EuropeConstruction4.5%
Other Alloys6%GlobalSpecialized applications3.0%

Moles per kilogram

Product FormFormulaMW (g/mol)Moles/kg
Tin MetalSn118.718.42
Tin(IV) Oxide (Cassiterite)SnO₂150.716.64
Tin(II) Chloride (hydrated)SnCl₂·2H₂O225.654.43
Tin(IV) ChlorideSnCl₄260.523.84
Sodium Stannate (hydrated)Na₂SnO₃·3H₂O266.733.75

References

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