Welan gum

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Source: Biofermentation using a sugar source Function: Thickening, suspension, thermal stability Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures. Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3. Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners. Main properties Anionic polysaccharide. Excellent thermal stability. Highly pseudoplastic solutions. Retention of viscosity at elevated temperatures. Stable over a wide range of pH and temperature. Compatible with high calcium environments. Stabilizes suspensions, emulsions und foams. Stable in solutions containing high levels of glycols. Reference COA: Test Item Specifications Results Appearance Off-white to tan powder Pass test Solubility Hot or cold water Pass test Viscosity 1% gum to 1%KCL Brookfield, LVT. 60 rpm, spring 3, 25oC Min.1500 mPa.s 1580 Loss on drying max.13.0% 7.6 pH (of 1% solution) 5.0-9.5 8.4 Particle size 95%through 80 mesh pass test Shelf Life 2 Year after production date under the specific storage conditions conform