Tetrabromobisphenol A CAS#79-94-7

CAS Number: 79-94-7
Chemical Formula: C15H12Br4O2
Synonyms:

Great lakes BA-59P
TETRABROMOBISPHENOL A CARBONATE OLIGOMER
3,5,3',5'-Tetrabromobisphenol A

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Tetrabromobisphenol A CAS#79-94-7

Tetrabromobisphenol A is a white to pale cream or pale yellow crystalline with a moderately high molecular weight, low water solubility, and moderately high lipophilicity (as indicated by log Kow). Only about 4% of the particles are <15 μm in diameter, and thus, little (<4%) is expected to be respirable (<10 μm in diameter) and absorbed from the lung after inhalation exposure.

Tetrabromobisphenol A (TBBPA) is a brominated flame retardant used in a variety of reactive and additive applications. It is reacted (i.e., covalently bound) with epoxy, vinyl esters, and polycarbonate systems (e.g., high impact polystyrene (HIPS), and is used as an additive in acrylonitrile-butadiene-styrene (ABS) thermoplastic resins (Albemarle, 1999). Its primary application is in printed wire boards (PWBs) as a reactive flame retardant (BSEF, 2012).

Tetrabromobisphenol A Chemical Properties

Melting point	178-181 °C(lit.)
Boiling point	316 °C
density	2.1
vapor pressure	0Pa at 20℃
refractive index	1.5000 (estimate)
storage temp.	2-8°C
solubility	Insoluble
pka	8.50±0.10(Predicted)
color	White to Almost white
Water Solubility	Insoluble
BRN	1889048
Major Application	environmental
InChI	1S/C15H12Br4O2/c1-15(2,7-3-9(16)13(20)10(17)4-7)8-5-11(18)14(21)12(19)6-8/h3-6,20-21H,1-2H3
InChIKey	VEORPZCZECFIRK-UHFFFAOYSA-N
SMILES	CC(C)(c1cc(Br)c(O)c(Br)c1)c2cc(Br)c(O)c(Br)c2
LogP	5.903-6.31 at 12-25℃
CAS DataBase Reference	79-94-7(CAS DataBase Reference)
IARC	2A (Vol. 115) 2018
NIST Chemistry Reference	Phenol, 4,4'-(2,2-propanediyl) bis[2,6-dibromo]-(79-94-7)
EPA Substance Registry System	Tetrabromobisphenol A (79-94-7)

Safety Information

Hazard Codes	Xi,N
Risk Statements	36/37/38-50/53
Safety Statements	26-36-37/39-61-60
RIDADR	UN 3077 9/PG 3
WGK Germany	1
RTECS	SM0894500
TSCA	TSCA listed
HazardClass	9
PackingGroup	II
HS Code	29081990
Storage Class	11 - Combustible Solids
Hazard Classifications	Aquatic Acute 1 Aquatic Chronic 1 Carc. 2
Hazardous Substances Data	79-94-7(Hazardous Substances Data)
Toxicity	LD50 inhalation in guinea pig: > 500mg/m3/8H

Product Application of Tetrabromobisphenol A CAS#79-94-7

The main use of TBBPA is as a reactive flame retardant in epoxy resins for printed circuit boards in computers, telecommunications equipment, industrial controls and automotive electronics. Both hydroxyl groups on TBBPA can be reacted with epichlorohydrin under basic conditions to form the diglycidyl ether, which is widely used in epoxy resin formulations. TBBPA is also used in polycarbonate and ether polyester resins and is used as a chemical intermediate for the synthesis of tetra-bromobisphenol A allyl ether, -bis(2-hydroxyethyl ether), -carbonate oligomer, and -diglycidyl ether. TBBPA is also used as a flame retardant in plastics, paper, and textiles, and as a plasticizer in adhesives and coatings. Being covalently bound to the polymer limits exposure to unbound excess chemical used in the manufacturing process.

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