Drilling grade biopolymer Xanthan Gum

Drilling grade biopolymer Xanthan Gum is recognized as one of the most versatile bio-based polymers globally, excelling in thickening, suspension, emulsification, and stabilization. The presence of pyruvate groups at the molecular side chain significantly influences its performance. While it shares some properties with conventional long-chain polymers, Drilling grade biopolymer Xanthan Gum possesses additional functional groups, enabling unique behaviors under specific conditions. Its molecular structure in aqueous solutions is highly adaptable, allowing it to exhibit varying properties depending on environmental factors.

Acid & Alkali Stability

Xanthan gum solutions demonstrate exceptional stability across a wide pH range. Viscosity remains consistent between pH 5–10, with only minor fluctuations below pH 4 or above pH 11. Within the pH 3–11 range, viscosity variations remain under 10%. It is soluble in various acidic solutions, including 5% sulfuric acid, 5% nitric acid, 5% acetic acid, 10% hydrochloric acid, and 25% phosphoric acid, maintaining long-term stability at room temperature without performance degradation. Additionally, it dissolves effectively in sodium hydroxide solutions, providing stable thickening properties. However, strong oxidizers (e.g., perchloric acid, persulfuric acid) can degrade Xanthan gum, with degradation accelerating at higher temperatures.

Salt Stability

Xanthan gum solutions are highly compatible with salt solutions (e.g., potassium, sodium, calcium, and magnesium salts), retaining viscosity even in high-salinity environments. Remarkably, it remains soluble without precipitation or flocculation in saturated salt solutions, with negligible impact on viscosity.