High-performance biopolymer for rheology control in oilfield drilling fluids, food products, and industrial applications. Supplied to API and GB/T5005 standards.
Xanthan Gum is a high-molecular-weight polysaccharide produced by fermentation of Xanthomonas campestris. It is widely valued for its exceptional pseudoplastic rheology — providing high viscosity at low shear rates while flowing freely under pumping conditions — making it ideal for both oilfield and food applications.
ZHAOYUAN supplies Xanthan Gum in oilfield grade (compliant with API and GB/T5005 standards) and food grade (E415). Products are manufactured to consistent quality with full COA documentation provided for every shipment.
| Parameter | Specification | Test Method |
|---|---|---|
| Standard | GB/T5005 · API | — |
| Appearance | Off-white or light yellow free-flowing powder or granular | Visual |
| Dry Sieve Analysis — US #40 | ≥ 95.0% | GB/T500515.5 |
| Dry Sieve Analysis — US #200 | ≤ 50.0% | GB/T500515.5 |
| pH (1% solution) | 6.0 – 8.0 | Manufacturer's standard |
| Shearing Ratio | ≥ 6.5 | GB1886.41 |
| Loss on Drying | ≤ 13.0% | GB1886.41 |
| Ash Content ★ | ≤ 13.0% | GB1886.41 |
| Pyruvic Acid ★ | ≥ 1.5% | GB1886.41 |
| Starch / Starch Derivatives | Absent | GB/T500515.2 |
| Guar Gum ★ | Absent | GB/T500515.3 |
| Dispersion | No lumps | Manufacturer's standard |
| Viscosity @ 600 rpm (dial reading) | ≥ 70 | GB/T500515.6 |
| Viscosity @ 300 rpm | ≥ 55 | GB/T500515.6 |
| Viscosity @ 200 rpm | ≥ 45 | GB/T500515.6 |
| Viscosity @ 100 rpm | ≥ 35 | GB/T500515.6 |
| Viscosity @ 6 rpm | ≥ 18 | GB/T500515.6 |
| Viscosity @ 3 rpm | ≥ 16 | GB/T500515.6 |
| Apparent Viscosity @ 1.5 r/min | ≥ 1,950 mPa·s | GB/T500515.7 |
★ Items marked are guaranteed specification items. Full COA provided with every shipment.
| Parameter | Specification | Test Method |
|---|---|---|
| Standard | Food Grade · E415 | — |
| Appearance | Off-white to cream free-flowing powder | Visual |
| Viscosity (1% solution, 25°C) | ≥ 1,200 mPa·s | Brookfield |
| Loss on Drying | ≤ 13.0% | — |
| pH (1% solution) | 6.0 – 8.0 | pH meter |
| Ash Content | 6.5 – 16.0% | — |
| Pyruvic Acid | ≥ 1.5% | — |
| Total Plate Count | ≤ 2,000 cfu/g | — |
Food grade COA and MSDS available on request. Contact us for specific food application requirements.
| Standard Packaging | 25 kg kraft paper bags with inner polyethylene liner |
| Bulk Packaging | 500 kg / 1,000 kg jumbo bags available on request |
| Storage Conditions | Store in a cool, dry, well-ventilated area. Keep away from moisture and direct sunlight. |
| Shelf Life | 2 years from date of manufacture under recommended storage conditions |
| HS Code | 3913.90 (Polysaccharides and their derivatives) |
Oilfield-grade xanthan gum works as a viscosifier and suspension agent in water-based drilling fluids. Its shear-thinning properties let the fluid pump easily under flow while still maintaining suspension and wellbore stability when circulation stops.
Oilfield grade is tested against drilling-fluid specific parameters including shearing ratio (≥6.5) and viscosity readings at multiple rotational speeds (600 down to 3 rpm). Food-grade xanthan gum meets E415 specification, with viscosity ≥1,200 mPa·s (1% solution) and a total plate count limit of ≤2,000 cfu/g for food safety.
No — both starch/starch derivatives and guar gum are tested as absent per GB/T500515.2 and GB/T500515.3, two of the guaranteed specification items covered by the certificate of analysis (COA) provided with every shipment.
Yes — xanthan gum is applied in polymer flooding EOR projects to improve sweep efficiency and mobility control under reservoir conditions, in addition to its use in HDD/tunneling fluids, industrial thickening, and agricultural suspension applications.
Pyruvic acid content is guaranteed at ≥1.5% for both oilfield and food grades. Pyruvic acid substitution level is directly linked to the polymer's viscosity-building performance, so this is one of the guaranteed specification items backed by COA on every shipment.
Standard packaging is 25 kg kraft paper bags with an inner polyethylene liner, with 500 kg or 1,000 kg jumbo bags available for bulk orders. Shelf life is 2 years from the manufacture date when stored in a cool, dry, well-ventilated area away from moisture and direct sunlight.
Pricing depends on grade (oilfield vs. food), viscosity performance, order quantity, packaging, and destination/shipping terms. Contact us with your grade and quantity for a quote.
Yes — a full certificate of analysis (COA) covering the guaranteed specification items and a material safety data sheet (MSDS) are available on request with every shipment.
ZHAOYUAN supplies xanthan gum directly from China with export capability for bulk orders worldwide, and also delivers turnkey EPC engineering for cellulose ether production plants — giving customers both a chemical supply source and a manufacturing-side engineering partner.