BROMINE†
Chemical Identification | |
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CAS # | 7726-95-6 |
Formula |
Br₂ |
Synonyms |
molecular bromine |
Physical Properties | |||
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Physical description | Dark reddish-brown, fuming liquid with suffocating, irritating fumes. | ||
Boiling point | 139°F | Molecular weight | 159.8 |
Freezing point/melting point | 19°F | Vapor pressure | 172 mmHg |
Flash point | Vapor density | 5.51 | |
Specific gravity | 3.1023 | Ionization potential | 10.55 eV |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | 3 | NFPA fire rating | 0 |
NFPA reactivity rating | 0 | NFPA special instruction | OX: Possesses oxidizing properties |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | 0390 | |||||
Sampling group | ||||||
Sampler/Sampling media | Midget fritted glass bubbler (MFGB) containing 10 mL 0.003 M NaHCO₃/0.0024 M Na₂CO₃ - Bromine Sampling Solution [SLTC110SOL] | |||||
Sampling time* | ||||||
Sampling volume (TWA)* | 30 L |
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Sampling flow rate (TWA)* | 0.5 L/min |
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Sampling volume (STEL/Peak/C)* | 7.5 L |
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Sampling flow rate (STEL/Peak/C)* | 0.5 L/min |
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Analytical method instruments | IC | |||||
Method reference | OSHA ID-108 (fully validated) | |||||
Notes | These media are prepared by SLTC as needed and are not available for immediate shipment. Please allow time for SLTC to prepare these media prior to sampling. |
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Special requirements | Submit as a separate sample. |
* 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 | |
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Sampler/Sampling media |
Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | Detector tube | Detector tube | ||||
Model/Type | Matheson-Kitagawa 8014-114 | Gastec 8LA | ||||
Sampling information (see manufacturer instructions) |
follow mfr instructions, approx 1-20 ppm range | 4 strokes, 0.05-0.8 ppm range |
Exposure Limits | |||||||
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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 |
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PEL-TWA |
0.1 ppm (0.7 mg/m³) |
REL-TWA |
0.1 ppm (0.7 mg/m³) |
TLV-TWA |
0.1 ppm [1991] |
PEL-TWA | |
PEL-STEL | REL-STEL |
0.3 ppm (2 mg/m³) |
TLV-STEL |
0.2 ppm [1991] |
PEL-STEL | ||
PEL-C | REL-C | TLV-C | PEL-C |
0.1 ppm (0.7 mg/m³) |
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Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Notes: | Notes: | Notes: | Notes: | ||||
Health factors: See NIH-NLM PubChem. | IDLH |
3 ppm |
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Carcinogenic classifications: | Notes: | ||||||
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
0.1 ppm/0.5 ppm/5 ppm |
Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Bromine NIOSH: Pocket Guide to Chemical Hazards - Bromine Literature References
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Last Updated Date : 12/18/2020