SAYTEX® RB-79 Flame Retardant

CAS Number:  77098-07-8

SAYTEX RB-79 flame retardant is a stable, reactive bromine-containing diester/ether diol of tetrabromophthalic anhydride. The nominal structure of SAYTEX RB-79 flame retardant is a mixed ester of tetrabromophthalic anhydride with diethylene glycol and propylene glycol.

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Physical and Chemical Properties
Property Value
IUPAC Name
2-(2-hydroxyethoxy)ethanol;propane-1,2-diol;3,4,5,6-tetrabromophthalic acid
Appearance
Liquid
Color
Amber
Specific Gravity
1.8
Solubility in Water
<0.1 (weight % at 25 °C)
Solubility in Other Solvents
  • Methanol: 0.1 (at 25 °C)
  • HCFC 141b: 6 (at 25 °C)
  • HFC 245fa: 23 (at 25 °C)
  • HFO 1233zd(E): 1.0 (at 25 °C)
Hydroxyl Number
200-235
Acid Number
0.25
Additional Properties
% Bromine (wt %): 45

Applications

Reactive diol for rigid polyurethane foam Urethane elastomers and coatings

Features

Reactive diol High bromine content Scorch resistant

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