Specifications
Typical guar gum specifications
These ranges describe the commercial grades we offer. They are not a certificate. Every shipment is sold against the certificate of analysis for that lot, including the test method. Viscosity below is the usual Brookfield reading: 1% solution, 25°C, after hydration, spindle and speed as printed on the COA.
Food grade
| Parameter | Typical limit |
|---|---|
| Appearance | Cream to pale yellow powder |
| Mesh | 200 or 300, minimum 98% passing the stated sieve |
| Moisture | Maximum 12% |
| Viscosity, 1% solution | Typically 3,500–5,500 cP, band stated per lot |
| pH, 1% solution | 5.5–7.0 |
| Ash | Maximum 1.0% |
| Protein | Maximum 5% |
| Acid insoluble residue | Maximum 3% |
| Galactomannan | Minimum 80% |
| E. coli / Salmonella | Absent in the stated sample size |
Industrial and oilfield
| Parameter | Typical limit |
|---|---|
| Mesh | 100 or 200, as specified |
| Moisture | Maximum 12% |
| Viscosity, 1% solution | Typically 4,000–6,000 cP |
| Hydration | Regular or fast, named on the offer |
| pH, 1% solution | 5.5–7.5 |
| Residue | As per the industrial specification agreed |
What to send with an inquiry
- Grade: food 200, food 300, fast hydration, or oilfield.
- Viscosity minimum you will accept, and the test method if your lab uses a fixed one.
- Quantity in metric tonnes, and whether this is a trial or a repeating order.
- Destination port and preferred Incoterm: FOB or CIF.
- Any buyer specification, allergen statement, or regulatory certificate the destination requires.