Salts & Minerals
REACH
Tin
CAS Number
7440-31-5
EC Number
231-141-8
What is Tin?
Tin (CAS 7440-31-5) is a base metal in refined elemental form, used in metallurgy, chemical synthesis and industrial manufacturing.
Where is Tin used?
- Metallurgy: raw material for alloys and inorganic tin compounds
- Electronics and automotive: primary constituent of lead-free solder alloys in PCB assembly
- Catalysts: precursor for polyurethane and silicone curing systems
- Plastics: tin-based stabilizers for heat and UV resistance in PVC
- Coatings: production of tin oxide and organotin biocides
- Procurement demand spans solder production, chemical manufacturing and surface coating.
Commercial specifications
- Purity typically 99.85% to 99.99%
- Standard commercial grades conform to LME specifications
- Higher-purity electronic and chemical grades for sensitive synthesis
- Bulk metric-ton quantities and smaller lot sizes
Other Names (Synonyms)
element 50|tin atom|RefChem:1100127|Tin powder|Metallic tin|Zinn|Stannum metallicum|C.I. 77860
What are the physical properties of Tin?
Melting Point 231.9 °C
Boiling Point 2507 °C
Density 7.31 g/cm³
Flash Point 2270°C
Appearance Tin is a gray to almost silver-white, ductile, malleable, lustrous metal.
Color Silvery-gray
Form wire
Water Solubility reacts slowly with cold dilute HCl, dilute HNO3, hot dilute H2SO4; readily with conc HCl, aqua regia [MER06]
Vapor Pressure 1Pa at 1223.85℃
How is Tin classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H319 Causes serious eye irritation
H335 May cause respiratory irritation
H372 Causes damage to organs through prolonged or repeated exposure
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Which trade and regulatory codes apply to Tin?
HS Code 80070080
UN Number 3264
ADR Class 8
Packing Group II
Storage Class 13 - Non Combustible Solids
WGK (Germany) 1