Table 2. Quantitative Comparison of the Performance of AG with Those of the Polysaccharides Investigated Previously.
| s. no. | polysaccharides previously used as an inhibitor | metal substrate | corrosive media | inhibitor concn at which maximum inhibition efficiency is observed (ppm) | temp (°C) | inhibition efficiency (%) | reference |
|---|---|---|---|---|---|---|---|
| 1 | xanthan gum | carbon steel | 1 M HCl | 1000 | 30 | 82.31 | (15) |
| 2 | hydroxyethyl cellulose | carbon steel | 1 M HCl | 500 | 30 | 91.62 | (16) |
| 3 | arabinoxylan from Plantago | carbon steel | 1 M HCl | 1000 | 60 | 94.4 | (17) |
| 4 | AG from tragacanth gum | carbon steel | 1 M HCl | 500 | 60 | 96.3 | present work |