31208
碳酸钙
puriss. p.a., ≥99%
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关于此项目
线性分子式:
CaCO3
化学文摘社编号:
分子量:
100.09
EC Number:
207-439-9
UNSPSC Code:
12352300
PubChem Substance ID:
Beilstein/REAXYS Number:
8008338
MDL number:
InChI key
VTYYLEPIZMXCLO-UHFFFAOYSA-L
InChI
1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
SMILES string
[Ca++].[O-]C([O-])=O
grade
puriss. p.a.
assay
≥99%
form
powder
impurities
≤0.001% total nitrogen (N), ≤0.005% insoluble in hydrochloric acid
solubility
H2O: insoluble
density
2.93 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg
cation traces
Ba: ≤50 mg/kg, Cu: ≤5 mg/kg, Fe: ≤10 mg/kg, K: ≤100 mg/kg, Mg: ≤500 mg/kg, Na: ≤2000 mg/kg, Pb: ≤5 mg/kg, Sr: ≤1000 mg/kg
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General description
Calcium carbonate (CaCO3) exists in three anhydrous crystalline polymorphic forms: trigonal(calcite), rhombic aragonite and hexagonal vaterite. On crystallization from water at low temperatures it affords rhombohedral calcium carbonate hexahydrate. On thermal decomposition it affords CaO and CO2. CaCO3 is a mineral found abundantly in mussel shells, exoskeleton of chorals and algae, the carapace of crayfish and lobsters. Its μm sized crystals have industrial importance.
Application
Calcium carbonate was used in the synthesis of hybrids of nanocrystalline cellulose (NCC) and amorphous calcium carbonate (ACC) nanoparticles.
Other Notes
A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.
存储类别
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
法规信息
新产品
此项目有
Eagleson M.
Concise Encyclopedia Chemistry, 162-162 (1994)
Denis Gebauer et al.
Nanoscale, 3(9), 3563-3566 (2011-08-19)
Nanocellulose hybrids are promising candidates for biodegradable multifunctional materials. Hybrids of nanocrystalline cellulose (NCC) and amorphous calcium carbonate (ACC) nanoparticles were obtained through a facile chemical approach over a wide range of compositions. Controlling the interactions between NCC and ACC
Sophie A Jamal et al.
Lancet (London, England), 382(9900), 1268-1277 (2013-07-23)
Phosphate binders (calcium-based and calcium-free) are recommended to lower serum phosphate and prevent hyperphosphataemia in patients with chronic kidney disease, but their effects on mortality and cardiovascular outcomes are unknown. We aimed to update our meta-analysis on the effect of
Polysaccharides and proteoglycans in calcium carbonate-based biomineralization.
José L Arias et al.
Chemical reviews, 108(11), 4475-4482 (2008-07-26)
Ling Li et al.
Nature materials, 13(5), 501-507 (2014-04-01)
Hierarchical composite materials design in biological exoskeletons achieves penetration resistance through a variety of energy-dissipating mechanisms while simultaneously balancing the need for damage localization to avoid compromising the mechanical integrity of the entire structure and to maintain multi-hit capability. Here
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