Product: Guar Gum
CAS‑No.: 9000‑30‑0
EC/EINECS‑No.: 232‑536‑8
INS/E‑No.: E412
1. Product Information
Guar gum is a natural high‑molecular‑weight galactomannan polysaccharide extracted from the endosperm of guar seeds (*Cyamopsis tetragonoloba*. It is a water‑soluble hydrocolloid widely used as thickener, stabilizer, binder and suspending agent in food, cosmetic, pharmaceutical and multiple industrial fields.
- Synonyms: Guaran, Gum Cyamopsis, Guar flour
- Molecular weight: 50,000‑8,000,000 g/mol
- Botanical source: *Cyamopsis tetragonoloba* seed endosperm
2. Chemical‑Physical Properties
Appearance: Off‑white to yellowish‑white free‑flowing powder
Odor: Nearly odorless, slight characteristic plant odor
Solubility: Soluble in cold/hot water; insoluble in ethanol and organic solvents
pH (1 % aqueous solution, 25 °C): 5.0 – 7.0
Bulk density: 0.5‑1.0 g/cm³
Decomposition temperature: Approx. 220 °C (no melting point)
Stability: Stable under normal conditions; fine dust may form explosive mixture with air; incompatible with strong oxidizing agents.3. Quality Specification (Food‑Grade Typical Standard, reference JECFA / FCC)
| Test Item | Specification Limit |
|---|---|
| Moisture (Loss on drying) | ≤ 12.0 % |
| Total Ash | ≤ 1.5 % |
| Acid‑insoluble matter | ≤ 7.0 % |
| Protein (N × 6.25) | ≤ 5.0 % |
| Viscosity (1 % solution, Brookfield, 25 °C) | 3500‑6000 mPa·s (grade‑dependent) |
| Starch test | Negative (no blue colour with iodine) |
| Borate test | Absent / Pass testFood and A... |
| Particle size | 95 % pass 200 mesh (customizable) |
| Lead | ≤ 2 mg/kg |
| Total Aerobic Count | ≤ 10 000 CFU/g |
| Yeast & Mould | ≤ 200 CFU/g |
| E. coli | Negative / 5 g |
| Salmonella spp. | Negative / 10 g |
4. Application & Use
Food industry (E412)
Thickener, stabilizer, suspending and water‑retention agent. Applied in ice‑cream, beverages, sauces, dressings, baked goods, meat products, dairy and instant foods. Permitted for use according to GMP in most regions.
Cosmetics & personal care
Viscosity modifier, stabilizer and conditioning agent for shampoos, lotions, creams and mask formulations.
Pharmaceutical
Tablet binder, disintegration‑assistant and controlled‑release excipient.
Industrial applications
- Petroleum: fracturing fluid thickener for oil‑well drilling- Textile: sizing agent
- Paper: wet‑end strength additive
- Water treatment, mining and adhesive formulations
5. Packing
Standard packing: 25 kg net weight per bag, multi‑layer paper bag with inner food‑grade PE liner.
Smaller packages (1 kg, 5 kg) are available upon request.
6. Transportation and Storage
Transportation- Transport as non‑hazardous goods. Avoid heavy rain, moisture and direct sunlight during transit.
- Keep away from strong oxidants, acid and alkali sources. Prevent bag damage and dust generation.
Storage
- Store in cool, dry, well‑ventilated warehouse. Recommended ambient temperature below 25 °C, relative humidity ≤ 65 %.
- Keep tightly closed, avoid moisture absorption and caking. Keep away from heat and direct sunlight.
- Shelf‑life: **24 months** under original sealed storage conditions.
- Once opened, seal bag immediately and consume as soon as possible.
Disclaimer: This TDS provides typical product information only. Real parameters shall follow the Certificate of Analysis for each production batch.
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