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Chemical Datasheet
BROMINE |
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Chemical Identifiers
| CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
- 7726-95-6
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- Corrosive
- Poison Inhalation Hazard
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| NIOSH Pocket Guide |
International Chem Safety Card |
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Bromine
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NFPA 704
General Description
Bromine is a dark reddish-brown fuming liquid with a pungent odor. Denser than water and soluble in water. Hence sinks in water. Toxic by inhalation. Accelerates the burning of combustible material. It is very corrosive to tissue and to metals.
Hazards
Reactivity Alerts
Air & Water Reactions
Fumes in air. Soluble in water.
Fire Hazard
Will cause ignition of organic materials spontaneous ignition possible when combined with potassium, phosphorus and tin and a wide variety of other chemicals. It reacts explosively with acetylene, acrylonitrile, ammonia, dimethyl formamide, ethyl phosphine, hydrogen, isobutyrophenone, nickel carbonyl, nitrogen triiodide, ozone, oxygen difluoride, phosphorus, potassium, silver azide, sodium and sodium carbide. When heated it emits highly toxic fumes and will react with water or steam to product toxic and corrosive fumes. Bromine is incompatible with a wide variety of materials including alkali hydroxides; arsenites; ferrous, mercurous salts; hypophosphites and other oxidizable substances. Vaporizes rapidly at room temperature. (EPA, 1998)
Health Hazard
Inhalation exposure to 11-23 mg/m3 produces severe choking. 30-60 mg/m3 is extremely dangerous. 200 mg/m3 is fatal in a short time. Vapors can cause acute as well as chronic poisoning. It has cumulative properties. It is irritating to the eyes and respiratory tract. Poisoning is due to the corrosive action on the gastrointestinal tract. Nervous, circulatory and renal disturbances occur after ingestion. Ingestion of liquid can cause death due to circulatory collapse and asphyxiation from swelling of the respiratory tract. The lowest oral lethal dose reported for humans is 14 mg/kg. The lowest lethal inhalation concentration reported for humans is 1000 ppm. (EPA, 1998)
Reactivity Profile
BROMINE is a powerful oxidizing agent. Reacts vigorously with reducing reagents. Can ignite a combustible material upon contact. If heated by itself or if mixed with water or steam, highly toxic and corrosive fumes are emitted. Reacts explosively with hydrogen, diethylzinc, dimethylformamide, ammonia, trimethylamine, nitromethane, metal azides (silver or sodium azide). Mixtures with lithium or sodium are shock-sensitive. Ignites on contact with germanium, trialkyl boranes, copper and alkali metal acetylides [Sax, 9th ed., 1996, p. 506]. Attacks most metals, including platinum and palladium [Hawley]. May react violently to form bromides upon contact with Mg, Sr, B, Al, Hg, Ti, Sn, Sb in powder or sheet form. Sodium, potassium, antimony and germanium ignite in bromine vapor and react explosively. Ignites on contact with germanium, trialkyl boranes, copper and alkali metal acetylides [Sax, 9th ed., 1996, p. 506]. Violent reaction with methanol, ethanol, aldehydes, ketones, carboxylic acids, diethyl ether, carbonyl compounds, tetrahydrofuran, acrylonitrile, ozone, phosphorus. Methyl acetylides or carbides ignite at room temperature on contact with bromine vapor. Explosive reaction with red phosphorus, metal azides, nitromethane, silane and its homologues [Bretherick, 5th ed., 1995, p. 109]. Reacts violently on contact with natural rubber [Pascal, 1960, vol. 16.1, 371].
Belongs to the Following Reactive Group(s)
- Oxidizing Agents, Strong
- Halogenating Agents
Potentially Incompatible Absorbents
Use caution: Liquids with this reactive group classification have been
known to react with the
absorbents
listed below.
- Cellulose-Based Absorbents
- Mineral-Based & Clay-Based Absorbents
- Expanded Polymeric Absorbents
- Dirt/Earth
Response Recommendations
Isolation and Evacuation
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1744 datasheet.
FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)
Firefighting
Wear positive pressure breathing apparatus and special protective clothing. Move containers from fire area. Cool containers that are exposed to flames with water.
Nonflammable, but a strong oxidizer. Extinguish with dry chemical, carbon dioxide, water spray, fog or foam. (EPA, 1998)
Non-Fire Response
Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2016)
Protective Clothing
Skin: Wear appropriate personal protective clothing to prevent skin contact.
Eyes: Wear appropriate eye protection to prevent eye contact.
Wash skin: The worker should immediately wash the skin when it becomes contaminated.
Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Change: No recommendation is made specifying the need for the worker to change clothing after the work shift.
Provide: Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2016)
DuPont Tychem® Suit Fabrics
Normalized Breakthrough Times (in Minutes)
| Chemical |
CAS Number |
State |
QS |
QC |
SL |
C3 |
TF |
TP |
BR |
RC |
TK |
RF |
| Bromine (>95%) |
7726-95-6 |
Liquid |
|
imm. |
|
imm. |
imm. |
imm. |
imm. |
imm. |
15 |
imm. |
| Bromine (>95%, 10 g/m² coverage) |
7726-95-6 |
Liquid |
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|
|
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|
|
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|
>480 |
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| Bromine (sat. vapor) |
7726-95-6 |
Vapor |
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40 |
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Special Warnings from DuPont
- Serged and bound seams are degraded by some hazardous liquid
chemicals, such as strong acids, and should not be worn when
these chemicals are present.
-
CAUTION: This information is based upon technical data that
DuPont believes to be reliable. It is subject to revision as
additional knowledge and experience are gained. DuPont makes no
guarantee of results and assumes no obligation or liability...
(DuPont, 2018)
First Aid
Warning: Effects may be delayed for several hours. Caution is advised.
Signs and Symptoms of Acute Bromine Exposure: Signs and symptoms of acute exposure to bromine may include hypotension (low blood pressure), tachycardia (rapid heart rate), cyanosis (blue tint to the skin and mucous membranes), and circulatory collapse. Neurological effects may include headache, dizziness, delirium, stupor, and shock. Gastrointestinal effects may include vomiting (vomitus may be blue), diarrhea, abdominal pain, and bloody stools. Nephritis with oliguria (scanty urination) and anuria (absence of urine formation) has been reported. Bromine is irritating to the skin, eyes, and mucous membranes; brown discoloration of the mucous membranes, lips, and tongue may be observed. Lacrimation (tearing), photophobia (heightened sensitivity to light), nosebleeds, coughing, asphyxiation, and pulmonary edema may also occur. A burning pain in the mouth and esophagus generally follows ingestion.
Emergency Life-Support Procedures: Acute exposure to bromine may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying and supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination.
Inhalation Exposure:
1. Move victims to fresh air. Emergency personnel should avoid self-exposure to bromine.
2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.
3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
4. Transport to a health care facility.
Dermal/Eye Exposure:
1. Remove victims from exposure. Emergency personnel should avoid self- exposure to bromine.
2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.
3. Remove contaminated clothing as soon as possible.
4. If eye exposure has occurred, eyes must be flushed IMMEDIATELY with lukewarm water for at least 15 minutes.
5. IMMEDIATELY wash exposed skin areas THOROUGHLY with soap and water.
6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
7. Transport to a health care facility.
Ingestion Exposure:
1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support.
2. DO NOT induce vomiting or attempt to neutralize!
3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures.
4. Activated charcoal is of no value.
5. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert.
6. Transport to a health care facility. (EPA, 1998)
Physical Properties
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature:
Not flammable
(USCG, 1999)
Melting Point:
19 ° F
(EPA, 1998)
Vapor Pressure:
172 mm Hg
at 69.08 ° F
(EPA, 1998)
Vapor Density (Relative to Air):
5.51
at 59 ° F
(EPA, 1998)
Specific Gravity:
3.1023
at 77 ° F
(EPA, 1998)
Boiling Point:
139.2 ° F
at 760 mm Hg
(EPA, 1998)
Molecular Weight:
159.81
(EPA, 1998)
Water Solubility:
4 %
(NIOSH, 2016)
Ionization Potential:
10.55 eV
(NIOSH, 2016)
IDLH:
3 ppm
(NIOSH, 2016)
AEGLs (Acute Exposure Guideline Levels)
Final AEGLs for Bromine (7726-95-6)
| Exposure Period |
AEGL-1 |
AEGL-2 |
AEGL-3 |
| 10 minutes |
0.033 ppm |
0.55 ppm |
19 ppm |
| 30 minutes |
0.033 ppm |
0.33 ppm |
12 ppm |
| 60 minutes |
0.033 ppm |
0.24 ppm |
8.5 ppm |
| 4 hours |
0.033 ppm |
0.13 ppm |
4.5 ppm |
| 8 hours |
0.033 ppm |
0.095 ppm |
3.3 ppm |
(NAC/NRC, 2017)
ERPGs (Emergency Response Planning Guidelines)
| Chemical |
ERPG-1 |
ERPG-2 |
ERPG-3 |
| Bromine (7726-95-6)
|
0.1 ppm  |
0.5 ppm |
5 ppm |
(AIHA, 2016)
PACs (Protective Action Criteria)
| Chemical |
PAC-1 |
PAC-2 |
PAC-3 |
| Bromine (7726-95-6)
|
0.033 ppm |
0.24 ppm |
8.5 ppm |
(DOE, 2016)
Regulatory Information
EPA Consolidated List of Lists
| Regulatory Name |
CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ |
EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
| Bromine |
7726-95-6 |
500 pounds |
500 pounds |
|
313 |
|
10000 pounds |
(EPA List of Lists, 2015)
DHS Chemical Facility Anti-Terrorism Standards (CFATS)
|
RELEASE |
THEFT |
SABOTAGE |
| Chemical of Interest |
CAS Number |
Min Conc |
STQ |
Security Issue |
Min Conc |
STQ |
Security Issue |
Min Conc |
STQ |
Security Issue |
| Bromine |
7726-95-6 |
1.00 % |
10000 pounds |
toxic |
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(DHS, 2007)
OSHA Process Safety Management (PSM) Standard List
| Chemical Name |
CAS Number |
Threshold Quantity (TQ) |
| Bromine |
7726-95-6 |
1500 pounds |
(OSHA, 2011)
Alternate Chemical Names
- BROMINE
- BROMINE ELEMENT
- BROMINE MOLECULE (BR2)
- DIATOMIC BROMINE
- DIBROMINE
- MOLECULAR BROMINE