Methylacetylene-Propadiene, Stabilized (MPS)
Methylacetylene-Propadiene, Stabilized (MPS) : A mixture of gases that, in the liquid phase, shall conform to the following: (a) Methylacetylene-propadiene (in combination, with a maximum ratio of 3. 0 moles of methylacetylene per mole of propadiene in the initial liquid phase in a storage container) - 68 mole percent maximum; (b) Propane, butane, isobutane (in combination) - 24 mole percent minimum of which at least 1/3 (8 mole percent of total mixture) shall be butane or isobutane; (c) Propylene - 10 mole percent maximum; (d) Butadiene - 2 mole percent maximum
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