Chemical Name: Tetrabromophthalate diol
Brand Name: EcoFlame B-627
Equivalent Grade: PHT-4 DIOL
CAS NO.: 20566-35-2
Chemical formula: C15H16O7Br4
Molecular Weight: 627.5
Chemical Structure:
Application:
Ecoflame B-627 is a kind of reactive flame retardant intermediates mainly used for flame retardant rigid foam, which is an amber viscous liquid, and is mainly used as a reactive flame retardant to produce I-grade and II polyurethane foams (PUR). The foaming material containing Ecoflame B-627 is very low in smoke and flame spreading speed, and the foamed plastic materials used in it can obtain excellent physical properties and low cost, and can be used to produce flame-retardant polyurethane washers, elastomer materials, coating adhesives and textiles.
Technical Data sheet：
Items | B-627 HV | B-627 LV | ||||
| Specification | Analysis result | Specification | Analysis result | Specification | Analysis result | |
| Appearance | 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 |
| Water content(%) | 0.20max | 0.07 | 0.20max | 0.07 | 0.20max | 0.10 |