2,2',6,6'-Tetrabromobisphenol A

  • 2,2-bis(3,5-Dibromo-4-hydroxyphenyl)propane
  • 2,2-bis(4-Hydroxy-3,5-dibromophenyl)propane
  • Bromdian
  • FG 2000
  • Fire guard 2000
  • Firemaster bp4a
Formula
C15H12Br4O2
Structure
Description
White powder. A monomer for flame-retardant epoxy, polyester and polycarboante resins.
Uses
flame retardant

Registry Numbers and Inventories.
CAS
79-94-7
EC (EINECS/ELINCS)
201-236-9
RTECS
SM0894500
RTECS class
Reproductive Effector; Primary Irritant
Beilstein/Gmelin
1889048
Beilstein Reference
3-06-00-05462
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C15H12Br4O2
Formula mass
543.87
Melting point, °C
136 - 137
Boiling point, °C
418
Vapor pressure, mmHg
1E-7 (25 C)
Density
2.158 g/cm3 (20 C)
Solubility in water
Insoluble
pKa/pKb
6.33 (pKa)
Partition coefficient, pKow
7.29
Heat of vaporization
69.7 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
If you spill this chemical, dampen the solid spill material with toluene, then transfer the dampened material to a suitable container. Use absorbent paper dampened with toluene to pick up any remaining material. Your contaminated clothing and the absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent-wash all contaminated surfaces with toluene followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
No data.

Fire.
Flash Point,°C
206
Fire fighting
You should extinguish fires involving this chemical with a dry chemical, foam, carbon dioxide or halon extinguisher.
Hazards
This compound is nonflammable.
Combustion products
When tetrabromobisphenol a was pyrolyzed in open quartz tubes for 10 min, brominated dibenzo p dioxins and dibenzofurans were generated at 700 C and increased at 800 C; at 900 C a decrease in levels of these combustion products was found.

Health.
Exposure effects
The toxicological properties of this material have not been investigated.

First aid
 
   Ingestion
If the exposed person is convulsing or unconscious, you should not attempt first aid. Transport immediately to a hospital emergency room or poison control center. If the victim is conscious, administer large volumes of liquid then immediately induce vomiting. Transport at once to a medical facility.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
You should remove all contaminated clothing and flood skin with water. Wash all affected skin areas thoroughly with soap and water and seek immediate medical attention.
   Eyes
Check for contact lenses and remove them at once if present. You should then immediately flush eyes with water from any source for 15 minutes. Do not use oil or ointment in eyes. Arrange immediate transportation to a medical facility.

Transport.