1. OSHA Occupational Chemical Database
  2. MERCURY (ORGANO) ALKYL COMPOUNDS
Label abbreviations descriptions

MERCURY (ORGANO) ALKYL COMPOUNDS†

Chemical Identification
Chemical Identification
CAS # 7439-97-6
Formula

Hg
Synonyms

Synonyms vary depending upon the specific (organo) alkyl mercury compound.
Physical Properties
Physical Properties
Physical description
Boiling point 266°F Molecular weight 98.2
Freezing point/melting point Vapor pressure depends upon the specific compound
Flash point Vapor density
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
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.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
 

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

0.01 mg/m³

 REL-TWA
 
 

0.01 mg/m³

 TLV-TWA
 
 

0.01 mg/m³ [1992]

 PEL-TWA
 
 

0.01 mg/m³
PEL-STEL
 
 

 

 REL-STEL
 
 

0.03 mg/m³

 TLV-STEL
 
 

0.03 mg/m³ [1992]

 PEL-STEL
 
 

0.03 mg/m³
PEL-C
 
 

0.04 mg/m³

 REL-C
 
 

 

 TLV-C
 
 

 

 PEL-C
 
 

0.04 mg/m³
Skin notation
 
 

Y

 Skin notation
 
 

Y

 Skin notation
 
 

Y

 Skin notation
 
 

Y
Notes:
 
 

See 29 CFR 1910.1000 Table Z-2.

 Notes:
 
 

 

 Notes:
 
 

 

 Notes:
 
 

 
Health factors:  See NIH-NLM PubChem. IDLH
 
 

2 mg/m³ (as Hg)
Carcinogenic classifications: Not listed Notes:
 
 

 
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 
 

--/0.25 ppm/0.5 ppm
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Mercury (organo) alkyl compounds (as Hg)

Literature References

 
 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Mercury [7439-97-6], alkyl compounds, as Hg. See annual publication for most recent information.

Last Updated Date : 01/29/2021