The invention relates to xanthan gum, which has the following properties in solution: a) viscosity at low shear rate at 3 rev. / min, which is more than about 1600 MPa × s where hydration in standard tap water at a concentration of xanthan gum 0.25 wt. %, B) toughness in seawater, which is more than about 20 at 1 lb / bbl (3.80 kg / m3) in the case hydration in synthetic seawater, c) hydration rate that is less than about 3 1 min masses. % NaCl solution at a concentration of xanthan gum 1 wt. %, And d) the ability to substantially complete hydration for less than about 10 minutes to 6 wt. % NaCl solution at a concentration of xanthan gum 1 wt. %. The invention also relates to xanthan gum, which has the following properties in solution: a) viscosity at low shear rate at 3 rev. / min, which is more than about 1600 mPa × s (cP) when hydration in standard tap water at a concentration of xanthan gum 0.25 wt. % Or viscosity at low shear rate at 3 rev. / Min, which is more than about 1750 mPa × s (cP) at 0.01 molar (M) NaCl solution at a concentration of xanthan gum 0.25 wt. % Or viscosity at low shear rate at 3 rev. / Min, which is more than about 1700 mPa × s (cP) at 0.1 molar (M) NaCl solution at a concentration of xanthan gum 0.25 wt. %, B) toughness in seawater, which is more than about 20 at 1 lb / bbl (3.80 kg / m3) in the case hydration in synthetic seawater, c) hydration rate of less than about 3 min 1 wt. % NaCl solution at a concentration of xanthan gum 1 wt. %, D) the ability to substantially complete hydration for less than about 10 minutes to 6 wt. % NaCl solution at a concentration of xanthan gum 1 wt. %, E) the ability to achieve full hydration after mixing propeller stirrer for about 1 hour. at 1800 rev. / min under ambient conditions of 10 wt. % Solution of ammonium nitrate at a concentration of xanthan gum 0.2 wt. %.Изобретение относится к ксантановой камеди, которая имеет такие свойства в растворе: a) вязкость при низкой скорости сдвига при 3 об. / мин,
