from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A brominated flame retardant with twelve carbon, eighteen hydrogen, and six bromine atoms tied to the ring, implicated in damage to the environment.
Alex Wilson at Environmental Building News notes another significant problem with polystyrene insulation, found almost universally in structural insulated panels (SIPs) and ICFs: they are full of the toxic fire retardant hexabromocyclododecane, or HBDC.
The chemicals include benzidine dyes, hexabromocyclododecane (HBCD, a category of flame retardants) and nonylphenol/nonylphenol ethoxylates (NP/NPEs).
The four are: hexabromocyclododecane (HBCDD), diethylhexyl phthalate (DEHP), butyl benzyl phthalate (BBP) and dibutyl phthalate (DBP).
However, certain green flame-retardants are very toxic -- hexabromocyclododecane and