Propylene oxide flammability limits

Vanta et al (Ref 2) determined the detonation limits of propylene oxide/air mixts to be 2.7 to 14.4 volume %, or much narrower than the flammability limits of ethylene oxide/air (see Table 3). They also measured the lower detonation limit for n-propyl nitrate/air and found it to be 2.2 volume %... 

PHENYLPROPYLENE or 2-PHENYL-PROPYLENE or -PHENYL-PROPYLENE (98-83-9) C,H, Flammable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 0.9 to 6.1 flash point 129°F/54°C autoignition tenp 1066°F/574°C Fire Rating 2]. Easily polymerizable. Unless inhibited, forms unstable peroxides. Reacts with heat and/or lack of appropriate inhibitor concentration. Reacts with catalysts for vinyl or ionic polymerization, such as alumimun, iron chloride or 2,5-dimethyl-2,5-di(/er/-butylperoxy)hexane. Violent reaction with strong oxidizers, butyl lithiiun, oleiun, xenon tetrafluoride. Incompatible with acids. The uninhibited monomer vapor may block vents and confined spaces by, forming a solid polymer material. Attacks aluminum and copper. On small fires, use dry chemical powder (such as Piuple-K-Powder), foam, or CO2 extinguishers. 

PROPYLENE TRIMER (27214-95-8) C9H1J Flammable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 0.7 to 3.9 flash point 78°F/26°C Fire Rating 3]. May polymerize under certain conditions. Violent reaction with strong oxidizers, strong acids, bromine, perchlorates, perchromates, pyridinium perchlorate, peroxyacetic acid, peroxybenzoic acid, polymerization initiators. Contact with strong reducing... 

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