Calcium Carbonate

Calcium Carbonate; CaCO3
CAS No. 471-34-1

Calcium carbonate (CaCO) is a low-cost, multi-functional filler/calcium source applicable to the food, feed, industrial, pharmaceutical, and daily chemical industries. Its core uses include calcium supplementation, filling, anti-caking, leavening, reinforcement, and flame retardancy.

I. Core Applications (by Grade)

1. Food-grade Calcium Carbonate (GB 1886.214, high purity, low heavy metals)
Calcium Fortification: Dairy products, infant formula, solid beverages, high-calcium biscuits, noodles, oatmeal (National Standard GB 14880).

Anti-caking/Anti-lumping: Salt, powdered sugar, starch, milk powder, seasonings (added 0.1%-2%).

Leaving/Acidity Adjustment: Baked pastries, biscuits, fermented dough products (combined with acids to produce gas, adjust pH).

Stabilization/Filling: Soy products, meat products, plant-based meat, edible packaging.

Daily Chemicals: Toothpaste abrasive (gentle cleaning, safe for consumption). 2. Feed-grade Calcium Carbonate (Primarily for Cost-Effectiveness)
Livestock/Aquatic Feed: Supplements calcium and phosphorus, promotes bone development, increases eggshell hardness, egg production rate, and weight gain.

Carrier: Premixed feed, vitamin carrier, trace element carrier.

3. Industrial-grade Calcium Carbonate (Largest Usage, Divided into Heavy Calcium/Light Calcium/Nano)

Plastics/Rubber: Filler for cost reduction, enhances rigidity, wear resistance, heat resistance, and improves processing (additional 10%â??50%).

Paper Making: Improves whiteness, smoothness, opacity, and stiffness (additional 5%â??15%).

Coatings/Inks: Thickener, cost reduction, improved hiding power, and weather resistance.

Building Materials: Cement, concrete, putty, calcium silicate board, fireproofing materials, tiles (reinforcement, flame retardancy, cost reduction).

Environmental Protection/Chemicals: Wastewater treatment neutralizer, flue gas desulfurization, plastic foaming agent, catalyst carrier.

4. Pharmaceutical grade: Calcium supplements (calcium tablets, calcium oral solutions), pharmaceutical excipients (fillers, suspending agents, disintegrants).