Freeze-drying yields stable and pure amorphous calcium carbonate (ACC).

Freeze-drying yields stable and pure amorphous calcium carbonate (ACC).

Chemical communications (Cambridge, England) (2013-03-13)

Johannes Ihli, Alexander N Kulak, Fiona C Meldrum

摘要

A simple synthetic method is presented for the precipitation of high purity, dry amorphous calcium carbonate (ACC) based on freeze-drying saturated, counter ion free CaCO3 solutions, where the ACC produced shows an extended atmospheric stability. Translation of the methodology to amorphous calcium phosphate demonstrates the generality of the approach.

材料

產品編號

品牌

產品描述

239216

Sigma-Aldrich

碳酸钙, ACS reagent, ≥99.0%, powder

12010

Sigma-Aldrich

碳酸钙, puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E170, precipitated, 98.5-100.5% (based on anhydrous substance)

310034

Sigma-Aldrich