More Tungsten Information

tungsten shell

Tungsten Atomic Structure:

Tungsten Electron Configuration:

1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d4 6s2

Tungsten Chemical Properties:


Tungsten Physical Properties:


Hardness Scale



Regulatory / Health

CAS Number

RTECS: Y07175000

OSHA Permissible Exposure Limit (PEL)
No limits set by OSHA
OSHA PEL Vacated 1989
TWA: 5 mg/m3
STEL: 10 mg/m3

NIOSH Recommended Exposure Limit (REL)
TWA: 5 mg/m3
STEL: 10 mg/m3

Routes of Exposure:

Target Organs:

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