Label abbreviations descriptions

COBALT HYDROCARBONYL

Chemical Identification
CAS # 16842-03-8
Formula

HCo(CO)₄
Synonyms

hydrocobalt tetracarbonyl; tetracarbonylhydridocobalt; tetracarbonylhydrocobalt

Physical Properties
Physical description Gas with an offensive odor.
Boiling point Molecular weight 172
Freezing point/melting point -15°F Vapor pressure >1 atm
Flash point Vapor density 5.93
Specific gravity Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time*
Sampling volume (TWA)*
Sampling flow rate (TWA)*
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments
Method reference
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA REL-TWA

0.1 mg/m³

 TLV-TWA

0.1 mg/m³ [1980]

 PEL-TWA

0.1 mg/m³
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

 Skin notation

N

 Skin notation

N

 Skin notation

N
Notes:

Not established

 Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-2B Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

--/0.9 mg/m³/3 mg/m³

Additional Resources and Literature References

Last Updated Date : 12/21/2020