Audited Supplier
Polyaspartic Acid Potassium Salt (Potassium polyaspartate, CAS Number 64723-18-8, is proposed for use as a stabiliser against tartrate crystal precipitation (anti-scaling additive) in wine (red, rosé and white wine) in European Union, with a maximum use level of 300 mg/L and typical levels in the range of 100-200 mg/L.
| CAS number | 64723-18-8 |
| Chemical name | L-aspartic acid, homopolymer, potassium salt |
| Assay | Not less than 98 % on dry weight basis |
| Particle size | Not less than 45 μm (not more than 1 % in weight of particles of less than 45 μm) |
| Description | A light brown odourless powder |
| Solubility | Very soluble in water and slightly soluble in organic solvents |
| pH | 7.5-8.5 (40 % aqueous solution) |
| Loss on drying | Not more than 11 % (105°C,12 hours) |
| Potassium hydroxide | Not more than 2 % |
| Aspartic acid | Not more than 1 % |
| Other impurities | Not more than 0.1 % |
| Arsenic (As) | Not more than 2.5 mg/kg |
| Lead (Pb) | Not more than 1.5 mg/kg |
| Mercury (Hg) | Not more than 0.5 mg/kg |
| Cadmium (Cd) | Not more than 0.1 mg/kg |
• Strongly effective for tartrate stabilization in red and rosé wines: potassium polyaspartate interferes with the formation and growth of potassium bitartrate crystals, thus preventing their precipitation in bottle. It can stabilize highly unstable wines. Rapid and easy-to-use, is a great alternative to physical treatments (cooling, cations exchange resins and electrodialysis) and other stabilizing agents.
• Long-lasting stabilizing effect: It can stabilize wines for a few years.
• Environmentally sustainable: the use of Potassium polyaspartate to stabilize wines for tartrates consumes small amount of water, power and produces little greenhouse gases.
• Respectful of wine quality: no impact on wine sensory profile, less risk of oxidation, preservation of aromatics, color and wine structure.
• Practical, fast and easy: Its application does not require investment in special equipment or specific skilled labor.
Shandong Longilat Biotechnology Co., Ltd was established in 2015. It is a high-tech professional and technological enterprise integrating R & D, production, and sales.
Longilat 's main products are food additives, plant extracts, cosmetic raw materials, feed additives, animal extract, amino acids and vitamins. Most of our products are derived from natural plants. Marketing services are available in many countries around the world.
1.Can I get some samples?
Yes, usually a 10-20g sample.
2.What's your MOQ?
Our MOQ is flexible, usually 1kg-10kg for a trial order is acceptable.
3. Is there a discount?
Of course, welcome to contact us. Price would be different based on different quantities. For bulk quantity, we will have a discount for you.
4. How to deliver the goods?
≤50kg ship by FedEx or DHL etc, ≥50kg ship by Air, ≥100kg can be shipped by Sea. If you have special request on delivery, please contact us.
5. What is the shelf life for the products?
Most products shelf life 24-36 months.
6. What's your delivery time?
Usually, shipment will be made within 7-15 days against confirmed order.
7. How about the validity of the offer?
Usually, our offer is valid for 1 week. However, validity might vary between different products.
