推薦產品
等級
ACS reagent
品質等級
化驗
≥99.0%
形狀
powder
雜質
≤0.002 meq/g water-soluble titr. base
≤0.005% oxidizers
≤0.01% NH4OH pptd.
≤0.01% insol. dil. HCl
pH值
8
密度
2.93 g/mL at 25 °C (lit.)
負離子痕跡
chloride (Cl-): ≤0.001%
fluoride (F-): ≤0.0015%
sulfate (SO42-): ≤0.01%
正離子痕跡
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-OES)
SMILES 字串
[Ca++].[O-]C([O-])=O
InChI
1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
InChI 密鑰
VTYYLEPIZMXCLO-UHFFFAOYSA-L
尋找類似的產品？ 前往 產品比較指南
一般說明
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。
應用
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。
法律資訊
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
nwg
閃點（°F）
Not applicable
閃點（°C）
Not applicable
分析證明 (COA)
輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號，寫有 ‘Lot’或‘Batch’.。
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