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flavonoid extract of Erigeron floribundus at 323 K. Figure 4. Variation of volume of hydrogen gas (V H) with time for mild steel coupons of cross sectional area of (20.20 cm2) in 2 M HCl solutions containing the various concentration flavonoid extract of Erigeron floribundus at 333 K. 0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6 1,8 0 5 10 15 20 25 30 35 H ...
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