| ITEM | STANDARD | 
| Appearance | Brown to yellowish powder | 
| Particle size | 30 mesh | 
| Viscosity (2%, 25℃, mPa.s) | As per customer need | 
| Loss on drying (105℃, 4h, %) | =< 15 | 
| pH (1% solution) | 6.0 - 8.0 | 
| Water insolubles (%) | =< 0.6 | 
| Calcium (%) | =< 0.8 | 
| Viscosity declining rate (%) | =< 20 | 
| Lead | =< 5 mg/kg | 
| Arsenic | =< 3 mg/kg | 
| Total heavy metals (as Pb) | =< 20 mg/kg | 
| Free Chlorine | Not Detective |