Xanthum Gum
It is high-molecular weight biopolymer, provides versatile rheology control in a wide range of brines, drilling and fracturing fluids. Xanthan gum is considered non-hazardous and suitable for use in environmentally sensitive locations and applications. It is a highly dispersible powder that can be used for a variety of oilfield applications that use standard grade xanthan gum. It is readily disperses and can be mixed into water under low shear conditions without the formation of lumps and “fisheyes” often seen with non-dispersible polymers, improving utility and efficiency.
In addition to its improved dispersibility,it has the typical properties of xanthan gum for oilfield use – excellent rheological control for water-based drilling, completion and work-over fluids in a wide range of brines.
In the oil industry, Xanthan gum is used in large quantities, usually to thicken drilling mud. These fluids serve to carry the solids cut by the drilling bit back to the surface. Xanthan gum provides great "low end" rheology. When the circulation stops, the solids still remain suspended in the drilling fluid. The widespread use of horizontal drilling and the demand for good control of drilled solids has led to its expanded use. It has also been added to concrete poured underwater, to increase its viscosity and prevent washout.
In cosmetics, Xanthan gum is used to prepare water gels, usually in conjunction with bentonite clays. It is also used in oil-in-water emulsions to help stabilize the oil droplets against coalescence. It has some skin hydrating properties. Xanthan gum is a common ingredient in fake blood recipes, and in gunge/slime.
Dosage
Depending on the requirement 0.1-0.5% calculated based on the water content.
Solutions should not contain more than 1% Xanthum Gum.Considerably higher concentrations ensure no homogenous Dispersion.
Processing
Due to its specialized chemical surface treatment, the products tend not to clump. It can be incorporated with low shear forces. Solution can be created by simply stirring it into water.
IT should be prepared an neutral to acidic pH-value- ranges. The viscosity increases in this case as a function of time until complete swelling occurs. Immediate viscosity build up can be achieved by alkalizing the solution.
Advantage :
- Minimized pumping friction in lime, freshwater and saltwater muds.
- Maximized drill bit penetration.
- Accelerated drilling rates in low viscosity/high shear conditions.
- Efficient suspension/solids transport in high viscosity/low shear conditions.
- Decreased solids buildup in drilling fluids.
- Handling high gravel concentrations.
- High viscosity at low concentrations.
- Stabilization of hole-cleaning fluids.
- Decreased damage to oil formation.
- Decreased maintenance expense.
- Lower total cost of operation.
Physical Properties :
Appearance : Soluble white to off white powder or granules
Odour : Slight
pH : 7 ± 1.5
Melting point : Not Applicable
Boiling point : N/A – solid
Bulk density : 550-850 kg/m3 (depending upon grade)
Solubility : Soluble in Water, but forms very viscous solutions which become Pasty at concentrations greater than 5%
Thickening and thixotropic agent for aqueous systems. Application
Xanthum Gum is suitable for use as a thickener and stabilizing additive for all aqueous coating systems and technical applications such as water thinkable lacquers, dispersion paints and plasters, glues printing inks, silicon paints as well as pigments and filler preparations.
Xanthum Gum is a natural biopolymer based on poly saccharides. The average molarity is approximately 2x106 g/mol. IT is soluble in cold and hot water and yields highly viscous, shear and thinnable solutions. It is insoluble in most organic solvents. Xanthum Gum is fully soluble in water and mixtures of organic liquids with at least 60% water content. Ethanol content of up to 50% is also possible.
Xanthum Gum is stable in anionic and non Ionic systems. In cationic systems, it is not always compatible.
The solutions are pH- and temperature stable. There is almost no change in viscosity from pH 2-12.The temperature has relatively less influence on the on the viscosity of a solution of Xanthum Gum.
Xanthum Gum prevents settling of pigments and fillers and separation of the liquid phase during storage. Application is made easier through pronounced structural viscosity .The viscosity sinks when the shear force is increased. It rapidly returns to the starting value when the shear force is increased. It rapidly returns to the starting value when the sheer force is removed. The product is compatible with most commonly used binders and thickeners used in the coating industry.
Conservation
Solution of Xanthum Gum should be preserved if they are to be stored for more than 24 hours. Compatibility is given with preservatives which are common in the paint industry.
Storage conditions
Xanthum Gum can be stored for at least 24 months at room temperature and dry conditions.
Xanthum Gum should be stored cool (max 30° C) and dry (max 70% relative humidity) in closed packages.
Package Sizes
Paper / Hdpe bag (25kg net)
Safety Regulations
According to regulation (EC) No 1272/2008 Xanthum Gum is not classified as a dangerous product and therefore does not need to be labeled.
Due to the fine fractions of the product, measures for dust protection must be heeded and the buildup of electrostatic charge must be avoided.
Xanthum Gum exporter and supplier in Abudhabi, Dubai, Ajman, Sharjah, Fujairah, UAE Middle East, Oman Muscat Sohar, Barka, Mumbai, Kandla Gandhidham, Kolkata, Visakhapatnam, Chennai, Canada
| Physical Properties : | Thickening and thixotropic agent for aqueous systems |
| Appearance | White to off white powder or granules |
| Odour |
Slight |
| pH | 7 ± 1.5 |
| Melting point | Not Applicable |
| Boiling point | N/A – solid |
| Bulk density | 550-850 kg/m3 (depending upon grade) |
| Solubility | Soluble in Water, but forms very viscous solutions which become Pasty at concentrations greater than 5% |
| Chemical Description | Anionic heteropolysacchride (xanthan gum) |
| Physical Data | |
| Bulk density approx | 800 g/f |
| Viscosity of a 1% solution approx | 2700 mPa s |
| Appearance | Cream-colored free flowing powder |
| Information on basic physical and chemical properties | |
| Physical state at 20 °C | Solid. |
| Decomposition point [°C] | N/A |
| Critical temperature [°C] | N/A |
| Auto-ignition temperature [°C] | N/A |
| Flammability (solid, gas) | N/A |
| Flash point [°C] | N/A |
| Boiling point [°C] | N/A - SOLID |
| Melting point | N/A |
| Initial boiling point [°C] | N/A |
| Final boiling point [°C] | N/A |
| Vapour pressure [20°C] | N/A |
| Evaporation rate | N/A |
| Vapour pressure mm/Hg | N/A |
| Vapour density | N/A |
| Density [g/cm3] | 1.5 |
| Relative density, gas (air=1) | N/A |
| Relative density, liquid (water=1) | N/A |
| Solubility in water [% weight] |
Soluble in Water, but forms very viscous solutions which become Pasty at concentrations greater than 5% |
| Log Pow octanol / water at 20°C | No data available. |
| Explosive properties | N/A |
| Explosion limits - upper [%] | N/A |
| Explosion limits - lower [%] | N/A |
| Oxidising properties | No data available. |
