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Hexabromocyclododecane

CAS Number
25637-99-4
EC Number
247-148-4
Chemical Formula
C12H18Br6
Molecular Weight
641.7 g/mol

Description

Hexabromocyclododecane (CAS 25637-99-4 ), commercially known as HBCD, is an additive flame retardant used primarily in thermoplastic and foam-based materials. It functions by interrupting combustion cycles in polymer matrices. This additive reduces flammability in finished products without requiring chemical bonding to the substrate. In building and construction, HBCD is incorporated into expanded and extruded polystyrene insulation boards. These boards meet fire performance standards required in wall, roof, and floor assemblies. Textile and upholstery manufacturers apply it to back-coatings on fabrics where flame resistance is a regulatory requirement. This is essential for commercial interiors and transportation seating. Electronics producers use it in housings and enclosures where UL 94 or equivalent fire ratings must be achieved in plastic components. These components are typically injection-molded or extruded. Paper and board laminates used in construction packaging also utilize HBCD to comply with specific fire classification requirements for safety. Hexabromocyclododecane is supplied as a white to off-white powder or granule, with the mixed isomers form being the standard commercial specification for industrial applications and chemical processing. Technical-grade material is the predominant offering, typically characterized by bromine content and thermal stability parameters relevant to polymer processing and high-temperature manufacturing environments. It is available in bulk bags and drummed packaging suited to industrial compounding and coating operations. This ensures efficient handling and storage for large-scale manufacturing and distribution needs. Contact us for supply of Hexabromocyclododecane Request Quote

Other Names (Synonyms)

hexabromocyclododecane mixed isomers | SAYTEX HBCD | RefChem:217126 | PYROVATEX 3887 | 5I9835JO3M | Cyclododecane, hexabromo- | HBCDD

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point178-183 °C
Density1.05 g/cm³
ColorWhite to Off-White
FormSolid
Water Solubility65.6μg/L at 20℃
Vapor Pressure0Pa at 21℃
Log P5.625 at 25℃

Safety & Handling

Warning
GHS08· Health HazardGHS09· EnvironmentGHS07· Irritant

Hazard Statements

H336May cause drowsiness or dizziness
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child
H362May cause harm to breast-fed children
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P263Avoid contact during pregnancy and while nursing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P233Store in a well-ventilated place. Keep container tightly closed.

Trade & Regulatory

WGK (Germany)1