xanthan gumexploitation gradeSubjects Standard Appearance Cream-white Particle Size(mesh) 60 Loss on Drying ≤13% PH 6-8 Viscosity(1%KCL,cps) ≥1200cps Rheological property with seawater at a concentration of 2.853kg/m3(1 lb/bbl) Specs with Fann-35 600rpm 75 300rpm 55 200rpm 45 100rpm 35 6rpm 15 3rpm 12.5 Thermal stability 121