Brominated polystyrene is a kind of novel brominated flame-retardants developed by our company. Which is brominated from polystyrene with catalyst, and then forms light yellowish powder after crushed.
CAS NO.: 88497-56-7 Chemical formula: (C8H5.3Br2.7)n
Physical property:
The products is white/yellowish powder/particle. its has outstanding thermal stability and chemical stability, it dissolve in tetrahydrofuran and  bromochloromethane, but it does not dissolve in water, alcohol, ether and ethylidene dichloride. Since polystyrene is a kind of engineering plastic, it has lowest effect on the mechanical property and keep more than 90% mechanical properties of the materials.
quality index:
  indexitem  Bromine Assay %glass state temperature Soft  point  1% Melting point  molecular quantity  Color APHA
WQF-04  ≥56  180-190  21-230  >300  ≥20  <30
WQF-05  ≥66  180-190  220-240  >320  25-30  <20
WQF-06  ≥66  170-180  220-240  >340  40  <20
Moisture: 0.2% max   White degree (ISO) ≥70 Average particle size (μm) ≤10
The Information Of The Goods
HS Code:  29025000  Trademark:  WANQUAN
Model:  WQF-04,WQL-04,WQF-05,WQL-05,WQF-06,WQL-06Productivity:  1000 t/a
Standard:  ISO9001:2000 ISO14001,GB/T28001 ROHS
Origin:  China
Packing:  In net 25KG kraft paper bag lined with plastic bags
Min. Order:  1 TON
Delivery term:        FOB,CNF,CIF  Shipment:  prompt
Payment terms:  T/T L/C AT SIGHT  shelf life  One year
Quality: as per your requirement
Function and characteristic:
1.  excellent compatibility with engineering plastics:
2.  lowest effect on the mechanical property to engineering plastics
3.  no graining and frosting from the material after added into the engineering plastics, also having excellent antielectronic performance
Application domain:
1. It is an environment friendly flame retardant, non-PBBs & non-PBDEs accord with the request of EU ROHS standard.
2. It has superfine consistent with engineering plastics, non-separating, non-blooming, has little effort on material mechanics performance.
3. It has outstanding thermal stability, espacilly applicable for high temperature such as engineering plastics
4. It has excellent electrical performance
Storage, Packing& Transportation:
Brominated polystyrene is a non-toxic, non-corrosive and non-explosive solid powder, which is packaged in kraft bag with plastic inner, it is sealed and delivered as non-dangerous product, it should be stored and transported under moisture-proof condition.