推荐产品
等级
puriss. p.a.
检测方案
≥99%
形式
powder
杂质
≤0.001% total nitrogen (N)
≤0.005% insoluble in hydrochloric acid
溶解性
H2O: insoluble
密度
2.93 g/mL at 25 °C (lit.)
痕量阴离子
chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg
痕量阳离子
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
SMILES字符串
[Ca++].[O-]C([O-])=O
InChI
1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI key
VTYYLEPIZMXCLO-UHFFFAOYSA-L
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一般描述
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.
应用
Calcium carbonate was used in the synthesis of hybrids of nanocrystalline cellulose (NCC) and amorphous calcium carbonate (ACC) nanoparticles.
其他说明
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.
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Gloves
法规信息
新产品
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
Eagleson M.
Concise Encyclopedia Chemistry, 162-162 (1994)
Munlika Bootklad et al.
Carbohydrate polymers, 97(2), 315-320 (2013-08-06)
Thermoplastic starch (TPS) was prepared using compression molding and chicken eggshell was used as a filler. The effect of the eggshell powder (EP) on the properties of TPS was compared with the effect of commercial calcium carbonate (CC). The organic
M Azizur Rahman et al.
PloS one, 8(3), e58781-e58781 (2013-03-26)
An organic matrix consisting of a protein-polysaccharide complex is generally accepted as an important medium for the calcification process. While the role this "calcified organic matrix" plays in the calcification process has long been appreciated, the complex mixture of proteins
Jane A Cauley et al.
Journal of women's health (2002), 22(11), 915-929 (2013-10-18)
Clinical outcomes of the Women's Health Initiative (WHI) calcium plus vitamin D supplementation trial have been reported during 7.0 years of active intervention. We now report outcomes 4.9 years after the intervention stopped and cumulative findings. Postmenopausal women (N=36,282) were
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