DICYCLOPENTADIENYL IRON†

Chemical Identification
Chemical Identification
CAS # 102-54-5
Formula

C₁₀H₁₀Fe

Synonyms

bis(cyclopentadienyl) iron; ferrocene; iron dicyclopentadienyl

Physical Properties
Physical Properties
Physical description Orange, crystalline solid or orange-yellow powder with a camphor-like odor.
Boiling point 480°F Molecular weight 186.1
Freezing point/melting point 343°F Vapor pressure
Flash point Vapor density
Specific gravity Ionization potential 6.88 eV
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.) 0904 (total); request using analyte code 9135 D100 (resp); request using analyte code 9130
Sampling group
Sampler/Sampling media Tared low-ash 37 mm PVC filter, 5 microns [SLTC108] Tared low-ash 37 mm PVC filter, 5 microns, preceded by 10 mm nylon Dorr-Oliver cyclone for respirable samples. [SLTC108]
Sampling time*

240-480 min

240-480 min

Sampling volume (TWA)*

960 L

816 L

Sampling flow rate (TWA)*

2 L/min

1.7 L/min ±5%

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments Gravimetric Gravimetric
Method reference OSHA PV2121 (partially validated) OSHA PV2121 (partially validated)
Notes

Samples are first analyzed gravimetrically. If the gravimetric result of a sample yields a concentration below the permissible exposure limit (PEL), the SLTC will report the calculated air concentration from the gravimetric result, qualified as less than or equal to the gravimetric result; no further work on the sample will be performed.

If the gravimetric result indicates an air concentration greater than the PEL, the sample will proceed for elemental analysis. Results will be reported from the elemental analysis for the element only; the stated identity of the actual sample contents is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. The stoichiometric factor for Ferrocene from iron is 3.331.

Samples are first analyzed gravimetrically. If the gravimetric result of a sample yields a concentration below the permissible exposure limit (PEL), the SLTC will report the calculated air concentration from the gravimetric result, qualified as less than or equal to the gravimetric result; no further work on the sample will be performed.

If the gravimetric result indicates an air concentration greater than the PEL, the sample will proceed for elemental analysis. Results will be reported from the elemental analysis for the element only; the stated identity of the actual sample contents is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. The stoichiometric factor for Ferrocene from iron is 3.331. The standard applies to the Respirable Fraction.

Special requirements

FOR TOTAL DUST SAMPLES, DO NOT USE A CYCLONE!!!

Samples must be collected with a Dorr-Oliver cyclone.

* 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

15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)

REL-TWA

10 mg/m³ (total dust), 5 mg/m³ (respirable)

TLV-TWA

10 mg/m³ [1990]

PEL-TWA

10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)

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

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes: Notes: Notes:

See footnote [n].

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed 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 - Ferrocene

NIOSH: Pocket Guide to Chemical Hazards - Dicyclopentadienyl iron

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Dicyclopentadienyl iron, as Fe. See annual publication for most recent information.

Last Updated Date : 12/28/2020