Chemical Name Tetrabromophthalic anhydride
Synonyms TBPA, Tetra bromo benzene acid anhydride
CAS No 632-79-1
Chemical Structure C8Br4O3
Molecular Weight 463.7
Appearance White or off-white powder
PROPERTIES TYPICAL VALUE
Assay, % 98.0 min
Assay Bromine (Br2), % 67.0 min
Loss on drying,% 0.10 max
H2SO4 salt,% 0.30 max
Melting Point, ºC 273.0-277.0.
TCMTB 80 is a fungicide used as a raw material in formulations. It is an 80% solution of 2-
(thiocyanomethylthio) benzothiozole. It is highly effective against mould fungi, thermophilic moulds, rot
and blue sap stain. TCMTB 80% is non-lachrymatory.
It has been used as flame retardant in polyester resins, polyurethane, wire coating and