Chemical Property of Aragonite (Ca(CO3)) (9CI)
Chemical Property:
- Appearance/Colour:White powder
- Melting Point:825 °C
- Refractive Index:1.6583
- Boiling Point:333.6oC at 760mmHg
- Flash Point:197oC
- PSA：63.19000
- Density:2.93 g/mL at 25 °C(lit.)
- LogP:-2.44700
- Storage Temp.:Store at RT.
- Solubility.:5 M HCl: 0.1 M at 20 °C, clear, colorless
- Water Solubility.:Insoluble
- Hydrogen Bond Donor Count:2
- Hydrogen Bond Acceptor Count:3
- Rotatable Bond Count:0
- Exact Mass:101.9629848
- Heavy Atom Count:5
- Complexity:26.3
- Purity/Quality:
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≥98% *data from raw suppliers
Calcium carbonate 95% *data from reagent suppliers
Safty Information:
- Pictogram(s):
Xi
- Hazard Codes:Xi
- Statements:
37/38-41-36/38-36
- Safety Statements:
26-36/37/39-37/39-37
- MSDS Files:
-
SDS file from LookChem
Total 1 MSDS from other Authors
Useful:
- Canonical SMILES:C(=O)(O)O.[Ca]
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Natural Occurrence and Biological Functions
Calcium carbonate is found in sedimentary rocks such as marble, limestone, and chalk, as well as in marine sediments.
It serves various functions in living organisms, including structural support (e.g., in algae, corals), protection (e.g., shells), buoyancy (e.g., cuttlebone), and in photoreceptor systems.
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Polymorphs and Phases
Calcium carbonate exhibits different polymorphs, including vaterite, aragonite, and calcite, with varying thermodynamic stability. Hydrated crystal phases such as monohydrocalcite, ikaite, and hemihydrate have also been identified, along with an amorphous phase (ACC) found in various organisms.
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Applications and Research
Calcium carbonate is widely used as a filler material in various industries including paper, plastics, rubber, paints, and foodstuffs.
Synthetic calcium carbonate micro/nanoparticles (MNPs) are tailored for specific applications by controlling their dimensions, polymorphs, morphologies, and surface functionalities. Research focuses on synthesizing calcium carbonate with specific properties such as size, morphology, polymorph, or surface functionality, leading to new applications in biomaterials, biomedicines, and environmental applications.
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Biomedical and Therapeutic Applications
Calcium carbonate particles are stable at neutral pH but dissolve under acidic conditions, making them useful for targeted drug delivery.
They are employed in chemotherapy, photothermal therapy (PTT), photodynamic therapy (PDT), wound healing, blood clotting, ultrasound (US), fluorescence, magnetic resonance imaging (MRI), and multimodal imaging and therapy.
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Synthesis Methods
Various synthesis methods have been developed for calcium carbonate, including liquid-liquid or solid-liquid-gas routes tailored by adding organic compounds or polymers. The carbonation method is considered eco-friendly and innovative, with potential for CO2 mitigation.
