239216
碳酸钙
ACS reagent, ≥99.0%, powder
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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
UNSPSC Code:
12352300
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-439-9
Beilstein/REAXYS Number:
8008338
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder
grade
ACS reagent
Quality Segment
assay
≥99.0%
form
powder
impurities
≤0.002 meq/g water-soluble titr. base, ≤0.005% oxidizers, ≤0.01% NH4OH pptd., ≤0.01% insol. dil. HCl
pH
8
density
2.93 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, fluoride (F-): ≤0.0015%, sulfate (SO42-): ≤0.01%
cation traces
Ba: ≤0.005%, Fe: ≤0.003%, K: ≤0.01%, Mg: ≤0.02%, NH4+: ≤0.003%, Na: ≤0.1%, Sr: ≤0.1%, heavy metals: ≤0.001% (by ICP)
SMILES string
[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
General description
CaCO3 天然存在，是石灰石、大理石和白垩的主要成分，可通过氢氧化钙溶液和二氧化碳沉淀制备。
Application
碳酸钙可作为前体制备Pd/CaCO3，它可以作为催化剂用于：
- Miyaura-Suzuki交叉偶联反应。
- 通过芳基卤化物和三丁基苯基锡的无配体Stille交叉偶联反应合成联苯。
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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存储类别
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable