Sciencemadness Discussion Board

Small fire while using BBr3

Aarnav - 16-11-2016 at 17:10

Although literature says BBr3 is non pyrophobic chemical, observed little fire while quenching the used Syringe with methanol.
Can any one explain the reason

clearly_not_atara - 16-11-2016 at 17:38

BBr3 reacts very enthusiastically with any source of hydroxyl groups. It probably heated up the methanol enough that it caught fire.

byko3y - 16-11-2016 at 18:38

Pyrophoric usually means "liable to ignite spontaneously on exposure to air". You did not expose the coumpound to air - you reacted it with some other substance, methanol, which is described as "highly flammable" by CDC, although its autoignition temeperature in air is as high as 470°C, so ignition is improbable at atmospheric pressure.

PHILOU Zrealone - 27-11-2016 at 11:17

Pyro-PHOBIC (scared of fire) he wrote....not Pyro-PHORIC (bringing fire/setting into fire)

Hoppefully BBr3 is not chemo-phobic ;):D:P:)