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Table 3 Products of decomposition of a flexible polyurethane foam based on decomposition steps from Fig. 8 (Rogaume et al. 2011)

From: The fire toxicity of polyurethane foams

Decomposition step Gas phase products Condensed phase products
1 Isocyanates Polyols
2 Polyol, CH2O, H2O, HCN and CH4 Solid residue
3 Isocyanates, polyols, H2O and CO2 Mixed polyol and polyol fragments
4 CO2, CO, H2O, Polyol, CH2O, HCN and CH4 Char
5 CO, CO2, H2O, CH2O, CH4, HCN and small amounts of polyol. Residue