Basic information History and Occurrence Chemical Properties Uses Physical Properties Production Reactions Safety Related Supplier
Tungsten Structure

Tungsten

Chemical Properties

Melting point 3410 °C (lit.)
Boiling point 5660 °C (lit.)
Density  19.3 g/mL at 25 °C (lit.)
vapor pressure  0Pa at 3000℃
Flash point -23 °C
storage temp.  no restrictions.
form  wire
Specific Gravity 19.3
color  Silver-gray
Resistivity 4.9 μΩ-cm, 20°C
Water Solubility  insoluble
Merck  13,9884
Exposure limits ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
Stability Stable. Dust is flammable, though not likely to present a hazard if normal good practice is used.
CAS DataBase Reference 7440-33-7(CAS DataBase Reference)
NIST Chemistry Reference Tungsten(7440-33-7)
EPA Substance Registry System Tungsten (7440-33-7)

Safety Information

Hazard Codes  F,Xi,N,Xn
Risk Statements  11-36/38-67-65-62-51/53-48/20-38
Safety Statements  6-26-36-62-61-36/37-16
RIDADR  UN 3089 4.1/PG 2
WGK Germany  -
RTECS  YO7175000
TSCA  Yes
HazardClass  4.1
PackingGroup  III
HS Code  81011000
Hazardous Substances Data 7440-33-7(Hazardous Substances Data)

MSDS

Usage And Synthesis

Tungsten Supplier

Tungsten manufacturers