In the oil refining and oil industry for drilling oil and gas wells lignosulfonates are used as a reagent to control the basic parameters of drilling fluids. Also, they are a component of gelling systems, which are low-viscosity solutions with pH 2.5-3.0
| Sr No. | Parameters | Specifications | Results |
| 1 | Appearance | Brown Powder | As per specs |
| 2 | Moisture | 5.0% max | 3% |
| 3 | pH Value | 5-8 | 6.5 |
| 4 | Lignosulphonate | 50% min | 58.5% |
| 5 | Total reducing matter | 7.5% | 8.5% |
| 6 | Water insoluble matter | 1.0% max | 0.3% |
| 7 | Fineness | 110 mesh | 120 mesh |
| 8 | Dispersion | 100% | 105% |