Biological Calcium Carbonate Oyster Shell Powder

Biological Calcium Carbonate (Oyster Shell Powder) – Natural Calcium Source for Food and Supplements

Basic Information

• CAS Number: 471-34-1

• Molecular Formula: CaCO₃

• Molecular Weight: 100.09 g/mol

• Appearance: White or almost white powder

• Packaging: 25 kg (inner food-grade polyethylene bag, outer composite paper bag) – custom packaging available

• Storage: Store in a dry, clean, cool, and well-ventilated area. Shelf life: 2 years under recommended conditions.

Overview
Biological calcium carbonate derived from oyster shells is a natural, renewable source of calcium. Eggshells, snail shells, and most marine shells are primarily composed of calcium carbonate and serve as practical industrial sources. Oyster shells, in particular, have gained recognition both as a dietary calcium source and as a versatile industrial raw material. Our product is processed to meet food-grade standards while retaining its natural bioavailability.

Key Benefits as a Calcium Supplement

• Natural origin: Safer, more easily digested and absorbed by the human body compared to synthetic or inorganic calcium sources.

• High calcium content: Contains three times more calcium than calcium lactate and four times more than calcium gluconate.

• Superior bioavailability: Superior nutritional metrics – absorption rate, utilization rate, and animal weight gain – all exceed those of milk-based calcium.

• Odorless and low side effects: No characteristic odor, minimal adverse reactions.

• Multifunctional: In addition to being a calcium source, it can be used as an alkaline agent, dough regulator, and anti-caking agent.

Applications

• Food industry: Used as a calcium fortifier in supplements, functional foods, baked goods, and beverages.

• Pharmaceuticals: Employed as a filler, excipient, and active ingredient in calcium-based preparations.

• Agriculture: Used as a soil conditioner and animal feed additive.

• Industrial: Applied in plastics, rubber, paints, and paper as a filler and coating pigment.

• Construction: Used in cement, lime, and building materials.

Key Properties

• High purity and food-grade quality.

• Excellent solubility in acidic media, supporting bioavailability.

• Non-toxic and safe for human consumption.

• Stable under recommended storage conditions.

Handling and Storage

• Store in a dry, clean, cool, and well-ventilated area.

• Keep away from moisture and strong acids (may release CO₂).

• Use appropriate personal protective equipment (dust mask, gloves, safety goggles) when handling.

Quality Assurance
Each batch is tested for calcium content, heavy metals, and microbial contamination to ensure compliance with food and industrial standards.