Product: EcoFlame B-627
Equivalent Product: PHT-4 DIOL
CAS Code: 20566-35-2
Molecular Formula: C15H16O7Br4
Molecular Weight: 627.5
Chemical Structural Formula:
Features and Application
The EcoFlame B-627 is used as the intermediary retardant agent with a light amber thick liquid appearance. It is mainly used for the manufacturing of B1 and B2 type of PUR. Products with EcoFlame B-627 burns with less smoke and at less spreading speed. Hence the foam-plastic product with EcoFlame B-627 has good physical performance and low cost. It is popular as binding agent for painting layers and wovens as well as elastic materials and flame retardant PU washers.
| Item | B-627 HV | B-627 MV | B-627 LV | |||
| Indicator | Test Result | Indicator | Test Result | Indicator | Test Result | |
| Form | Amber liquid | Amber liquid | Amber liquid | Amber liquid | Amber liquid | Amber liquid |
| Bromine content ( % ) | 44.0min | 46.3 | 42.5min | 43.0 | 42.0min | 42.8 |
| Acid value ( mgKOH/g ) | 1.0max | 0.86 | 1.00max | 0.42 | 1.00max | 0.25 |
| Hydroxyl value ( mgKOH/g ) | 150-235 | 208 | 190-265 | 245 | 210-275 | 260 |
| Viscosity ( cps ， 25 ℃ ) | 70,000-120,000 | 100,000 | 30,000-70,000 | 35,000 | 15,000-30,000 | 20,000 |
| Moisture ( % ) | 0.20max | 0.07 | 0.20max | 0.07 | 0.20max | 0.10 |
