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Calcium Carbonate (Feed Grade)
- Origin
- Vietnam
- CAS Number
- 2836-50-00
- HS Code
- 2836.50.00
Basic Info
- Physical State
- Solid
- Appearance / Color
- White to off-white powder
- Odor
- Odorless
- Moisture Content (%)
- <0.5%
- pH
- 8.5-9.5 (suspension)
- Synonyms & Trade Names
- Calcium carbonate; Ground limestone; Oyster shell flour; E170
- Total Plate Count (TPC)
- Not applicable
- Yeast & Mould
- Not applicable
- E. Coli
- Not applicable
- Coliform Bacteria
- Not applicable
- Salmonella
- Not applicable
- Shelf Life
- 36 months
- Packaging Size
- 25 kg / 50 kg
- Packaging Type
- PP woven bag
- Storage Conditions
- Cool, dry place
- Halal Certification
- Available
- Kosher Certification
- Available
- ISO / HACCP
- Yes
- Food Grade / Regulatory Status
- Feed grade
- Calcium Content, Ca (%)
- 36-38% Ca
- Total Volatile Basic Nitrogen (TVN/TVBN, mg/100g)
- Not applicable
- Bulk Density
- ~1.30 g/cm³
- Active Ingredient Assay (%)
- 98% min CaCO3
- Antioxidant Treatment
- None
- Species of Origin Declaration
- N/A (mineral)
- EU Feed Additive Authorization No.
- E170
- Aflatoxin B1
- Not applicable
- Heavy Metals — Feed (As, Pb, Hg, Cd)
- Compliant (Pb <2 ppm)
- Dioxins & PCBs (pg WHO-TEQ/g fat)
- Not applicable
Categories
Technical Document
Brief Overview
Calcium carbonate is known by aragonite or limestone come with chemical formula CaCO3. It comprises 4% of the earth’s total crust and is found in egg shells, snails, mineral rocks, pearls, shells of marine organisms and so on. It is an odourless, tasteless powder used in health supplements, agricultural industry, for environmental applications and many more.
Manufacturing Process
Producion of the pure calcium carbonate can be from marble, or by passing carbon dioxide into a solution of calcium hydroxide. In the later case, calcium carbonate is derived from the mixture, forming a grade of product called "precipitated calcium carbonate,” or PCC. A slurry of calcium hydroxide is agitated in a pressurized reactor, and carbon dioxide is provided under pressure to the reactor to produce precipitated calcium carbonate at a high reaction rate. Carbon dioxide is utilized at a high efficiency. Solubilized calcium ions and carbonate ions react to produce a calcium carbonate precipitate. Control of process conditions such as temperature, slurry concentration, and pressure, enables production of a desired crystal habit (including sclenohedral, rhombohedral, stacked rombohedral, or aragonite crystal structures), crystal size, or crystal aspect ratio.
