Tetrabromophthalic Anhydride Diol CAS 20566-35-2

• Customization: Available
• CAS No.: 20566-35-2
• Formula: C15h16o7br4
• Model NO.: Ecoflame B-627
• Environmental Protection: Yes
• Color: White
• Kind: Plastic Flame Retardant
• Appearance: Powder
• Transport Package: 200L Zinc Iron Drums
• Trademark: Ecoflame B-627
• Origin: Shandong
• Production Capacity: 2000ton/Month

Product Description

Application:  

EcoFlame B-627 flame retardant is a stable, reactive bromine-containing diester/ether
diol of tetrabromophthalic anhydride. The nominal structure of B-627 flame retardant is a
mixed ester of tetrabromophthalic anhydride with diethylene glycol and propylene glycol. 
EcoFlame  B-627  is  a  reactive  diol for  rigid  polyurethane  foam, Urethane  elastomers
and coatings with high bromine content, scorch resistant and good performance.
 
Technical Data Sheet
 

Item	B-627 HV		B-627-MV		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    (%)	44.0 min	46.3	42.5min	43.0	42.0min	42.8
Acid value     (mgKOH/g)	1.00max	0.86	1.00 max	0.42	1.00max	0.25
Hydroxyl number (mgKOH/g)	150-235	208	190-265	245	200-275	260
Viscosity    cps  (25 ºC)	70,000-120,000	100,000	30,000-70,000	35,000	15,000-30,000	20000
Moisture    (%)	0.20max	0.07	0.20max	0.07 max	0.20max	0.10