2.5 (99.5% pure)
Available in a rent cylinder
DIN 477 No 1 (W 21.80 x 1/14 LH)
One of the two isomers of Butadiene, differing in the position of the double bonds.
Colourless, not very toxic, combustible gas with a tendency to polymerise. Industrially a less significant gas that is oxidised rapidly, even by atmospheric Oxygen.
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