42757-55-1

Basic information

• Product Name: Octabromobisphenol-S
• Synonyms: 1,1’-sulfonylbis[3,5-dibromo-4-(2,3-dibromopropoxy)-benzen;bis[3,5-Dibromo-4-(2,3-dibromopropoxy)phenyl]suifone;BENZENE, 1,1'-SULFONYLBIS[3,5-DIBROMO-4-(2,3-DIBROMOPROPOXY)-];BIS(3,5-DIBROMO-4(2,3-DIBROMOPROPOXY) PHENYL)SULFONE;BIS(3,5-DIBROMO-4-(2,3-DIBROMOPROPOXY)PHENYL) SULPHONE;TETRABROMOBISPHENOL S;Octabromobisphenol-S;BIS-[3,5-DIBROMO-4-(2,3-DIBROMOPROPOXY)BENZENE-1,1'-SULFONYL
• CAS NO: 42757-55-1
• Molecular Formula: C18H14Br8O4S
• Molecular Weight: 965.6
• EINECS: 255-929-6
• Product Categories: Organics
• Mol File: 42757-55-1.mol
• Article Data: 5

Chemical Properties

• Melting Point: 115-120°C
• Boiling Point: 785 °C at 760 mmHg
• Flash Point: 428.5 °C
• Appearance: white powder
• Density: 2.354 g/cm³
• Vapor Pressure: 1.24E-23mmHg at 25°C
• Refractive Index: 1.67
• Storage Temp.: 2-8°C
• Solubility: DMSO (Slightly), Ethyl Acetate (Slightly, Heated)
• Stability: Hygroscopic
• CAS DataBase Reference: Octabromobisphenol-S(CAS DataBase Reference)
• NIST Chemistry Reference: Octabromobisphenol-S(42757-55-1)
• EPA Substance Registry System: Octabromobisphenol-S(42757-55-1)

Safety Data

• Hazardous Substances Data: 42757-55-1(Hazardous Substances Data)

Usage

Description

Octabromobisphenol-S, also known as EcoFlameRetardant B-967, is a high-quality flame retardant characterized by its white color, exceptional thermal and UV stability, non-blooming properties, and excellent wet electrical properties. It is a promising compound for various applications due to its ability to enhance safety and performance in different industries.

Uses

Used in Plastics Industry:
Octabromobisphenol-S is used as a flame retardant for plastics, providing outstanding fire resistance and safety properties. It is particularly effective in materials such as PP, PE, PS, ABS resin rubber, and other high molecular materials.
Used in Electronic Industry:
In the electronic industry, Octabromobisphenol-S is utilized as a flame retardant to enhance the safety and performance of electronic components and devices, protecting them from potential fire hazards and ensuring their reliable operation.
Used in High Molecular Material Industry:
Octabromobisphenol-S is employed as a flame retardant in the high molecular material industry, where it helps to improve the fire resistance and overall performance of various high molecular materials, contributing to their enhanced safety and durability.

InChI:InChI=1/C18H14Br8O4S/c19-5-9(21)7-29-17-13(23)1-11(2-14(17)24)31(27,28)12-3-15(25)18(16(26)4-12)30-8-10(22)6-20/h1-4,9-10H,5-8H2

Upstream product

• 42757-54-0 TBBP-S-dially ether 
• 80-09-1 4,4'-sulfonediphenol 
• 39635-79-5 2,2-bis(3,5-dibromo-4-hydroxyphenyl)sulfone 
• 41481-63-4 4,4’-sulfonylbis((allyloxy)benzene) 

Relevant articles and documents

Preparation method of tetrabromobisphenol S bis(2,3-dibromopropyl ether) flame retardant

The invention provides a preparation method of a tetrabromobisphenol S bis(2,3-dibromopropyl ether) flame retardant. Bisphenol S used as a raw material and chloropropene undergo a substitution reaction to obtain a bisphenol S diallyl ether intermediate, and the bisphenol S diallyl ether and liquid bromine undergo addition and substitution reactions to obtain tetrabromobisphenol S bis(2,3-dibromopropyl ether). One-time bromination is adopted to introduce all eight bromine atoms into an aromatic ring and a side chain at the same time, so that the process route is shortened, the operation is simple, the safety is high, and the production cost is low. A solvent can be recycled in the process of preparing the bisphenol S diallyl ether intermediate, and the output of three wastes is greatly reduced, so the pollution to the environment is reduced, and the production cost is saved. The tetrabromobisphenol S bis(2,3-dibromopropyl ether) flame retardant prepared in the invention has high productpurity and improved application quality.

Isolation and identification of tetrabromobisphenol-S-bis-(2,3-dibromopropyl ether) as flame retardant in polypropylene

Approximately 4% tetrabromobisphenol-S-bis-(2,3-dibromopropyl ether) and 0.44% antimony were found in the back wall of a TV cabinet. This is the first time a bromoorganic name retardant containing a sulfur linkage has been detected. No such compound has been previously mentioned in the analytical or environmental literature. Isolation from PP was performed by extraction and precipitation of coextracted polymer. After chromatographic separation (TLC, CC), the combination of 1H/13C-NMR, MS (EI), FT-IR and HPLC (UV/Vis, DAD and MS) indicated the TBBP-S derivative, which was verified by synthesis of reference material.

Bromine compound production method

A high-purity bromine compound which is useful as flame retardant, can be obtained industrially advantageously by a process comprising reacting bromine with an aliphatically unsaturated compound of formula (1) : R1-O-Ar1-Y-Ar2-O-R2to produce a bromine compound of formula (2): R3-O-Ar1-Y-Ar2-O-R4wherein in each formula Ar1and Ar2are independently a C5-16aromatic hydrocarbon or a C5-12saturated alicyclic hydrocarbon, and Y is a C1-6saturated hydrocarbon, a sulfone, sulfide, ketone or C2-6alkylene oxide or is a single bond; R1and R2are each independently a C2-11hydrocarbon group which is at least partially unsaturated; and R3and R4are groups obtained by saturating with a bromine atom the unsaturated groups of R1and R2respectively, wherein the reaction is carried out in the presence of a solvent which is inactive in the reaction, and a substantial amount (e.g. 80% or more) of reaction heat is removed from the reaction system by the vaporization heat of the solvent or bromine.