THALLIUM, SOLUBLE COMPOUNDS†

Chemical Identification
Chemical Identification
CAS # 7440-28-0
Formula

Tl

Synonyms

Synonyms vary depending upon the specific soluble thallium compound.

Physical Properties
Physical Properties
Physical description Light-gray to tan powder with a slightly aromatic odor.
Boiling point Molecular weight 358.6
Freezing point/melting point 302°F Vapor pressure depends upon the specific compound
Flash point 420°F Vapor density
Specific gravity 1.10 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.) 2420
Sampling group
Sampler/Sampling media Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (25 or 37 mm) [MAWP025A0 or MAWP037A0]
Sampling time*

240-480 min

Sampling volume (TWA)*

960 L

Sampling flow rate (TWA)*

2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments AAS/AES
Method reference OSHA ID-121 (fully validated)
Notes

Results are provided for the presence and amount or concentration of a specific element or elements. The stated identity of the actual sample contents (such as specific form, valence state, or compound) is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes.

Analysis for this analyte is based on water solubility.

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

Wipe with Whatman smear tab. [WHA1450993]

Bulk Method
Bulk Method

Available

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

0.1 mg/m³

REL-TWA

0.1 mg/m³

TLV-TWA

0.02 mg/m³ (inhalable particulate matter) [2009]

PEL-TWA

0.1 mg/m³

PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

Y

Skin notation

Y

Skin notation

Y

Skin notation

Y

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH

15 mg/m³

Carcinogenic classifications: Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Thallium

NIOSH: Pocket Guide to Chemical Hazards - Thallium (soluble compounds, as Tl)

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Thallium [7440-28-0] and compounds, as TI. See annual publication for most recent information.
  • Arbiser, J.L., Alani, R, Flynn, E., Wooten, V. and Byers, H.R.: Effects of thallium ion on cellular components of the skin. J. Dermatol. 24(3): 147-155, 1997.
  • Ficaro, E.P. and Corbett, J.R.: Advances in quantitative perfusion SPECT imaging. J. Nucl. Cardiol. 11(1): 62-70, 2004.
  • Pohanish, R.P. (editor): Thallium and Compounds. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 2190-2194.
  • Rusyniak, D.E., Furbee, R.B. and Kirk, M.A.: Thallium and arsenic poisoning in a small Midwestern town. Ann. Emerg. Med. 39(3): 307-311, 2002.
  • Saha, A., Sadhu, H.G., Karnik, A.B., Patel, T.S., Sinha, S.N. and Saiyed, H.N.: Erosion of nails following thallium poisoning: a case report. Occup. Environ. Med. 61(7): 640-642, 2004.

Last Updated Date : 01/29/2021