Vaterite is the least thermodynamically stable anhydrous calcium carbonate polymorph. Its
existence is very rare in nature, eg, in some rock formations or as a component of …

Carbon capture, utilization, and storage (CCUS) technologies are being developed to
address the increasing CO2 emissions, mitigating the global warming and climate change …

Colorimetric indicators are useful in intelligent food packaging applications. As a natural
food colorant, curcumin is a promising colorimetric indicator for the detection of alkaline …

A new method for reducing heavy metals in municipal solid waste incineration (MSWI) fly
ash was investigated. In many previous studies, acidic leaching was regarded as a standard …

Calcium carbide residue (CCR) is a waste obtained from the production of acetylene gas by
the hydration reaction of calcium carbide. This residue is generated in large quantities …

Highlights•Vaterite with more than 95% content was prepared by a one-step carbonization
method using WCS as raw material in the ammonium system.•Influence of NH 4 Cl, CH 3 …

Polymorphism-or morphology-controllable synthesis of CaCO 3 is of significance. Usually
only calcite CaCO 3 can be obtained from the ordinary CO 2-Ca (OH) 2 solution route; the …

In this paper, the production of CaCO3 particles via the carbonation route in the reaction of
CaCl2 and CO2, using NH3 as a promoter of CO2 absorption, was studied. The solvents …

Among various kinds of methods for the stabilization of heavy metals in municipal solid
waste incineration fly ash (MSWI FA), acid leaching is the most prevalent. However, the …

Colorimetric indicators are versatile for applications such as intelligent packaging. By
interacting with food, package headspace, and/or the ambient environment, color change in …