Precipitated calcium carbonate (PCC) with CAS number 471‑34‑1 supplied by Global Optimals has a purity of at least 99 % CaCO₃ and an average particle size of 0.5‑3 µm. The material is produced by reacting sodium carbonate with calcium chloride in aqueous solution, followed by controlled precipitation, thorough washing and low‑temperature drying, which yields highly uniform, low‑porosity crystals. This micronized structure enables rapid wetting and stable dispersion in both water‑based and solvent‑based systems without forming aggregates, a key factor for achieving smooth, defect‑free films. In paint technology PCC acts as an optical extender: at typical loadings of 5‑15 wt % it raises gloss, improves hiding power and reduces the amount of expensive resin needed, while maintaining colour stability over long service life. Beyond coatings, the same fine filler is employed in polymer compounding (polypropylene, polystyrene, PET) where it increases tensile strength, heat deflection temperature and scratch resistance, and helps control shrinkage during molding. In rubber formulations, especially with sulfide‑ and nitrile‑based elastomers, PCC contributes to flame retardancy and lowers thermal conductivity. The paper industry uses PCC to boost brightness, surface smoothness and printability, often in combination with starch‑based binders. Compatibility considerations include the need for adequate dispersants (polyacrylate, sulfonated melamine) and avoidance of excessively high pH, which can trigger re‑precipitation. Practical handling advice recommends dry blending PCC with other powders before introducing the mixture into a high‑shear disperser to obtain a stable suspension. For storage, keep the material in a dry, cool environment, protected from moisture and direct sunlight; multi‑layer polypropylene packaging preserves its properties for up to 12 months. Full technical documentation (TDS, SDS, COA) is available electronically, simplifying certification and quality control. From our Tashkent warehouse, fast delivery to Uzbekistan, Kazakhstan and Russia is achieved within 2‑3 business days after order confirmation. Choosing Global Optimals ensures compliance with international standards and reliable supply for large‑scale industrial projects.
| CaCO₃ | ≥99% |
| Белизна | ≥97% |
| D50 | 0.5–3 мкм |
| Маслоёмкость | 18–30 г/100г |
Bags 25 kg
The precipitated calcium carbonate should be stored in a dry, well‑ventilated area at ambient temperatures (approximately +5 °C to +25 °C), protected from direct sunlight and moisture. When the packaging remains intact, the typical shelf life is 12–24 months. During handling and unloading, avoid impacts, drops, and water contact, and use protective gloves and a dust mask to prevent inhalation. Ensure the multi‑layer polyethylene packaging stays undamaged to maintain moisture barrier integrity.
