The Thermavault refrigeration unit can keep vaccines cool with a reusable salt solution. The teens who built it plan to test ...

Three teens from India created a refrigerator that doesn’t need electricity to work. The Thermavault uses salt to stay cool.

Dhruv Chaudhary, Mithran Ladhania, and Mridul Jain — have developed a self-cooling mini fridge called Thermavault, powered by ...

A white ring of solid ammonium chloride forms where the two gases meet inside the tube. If necessary, protect non-glass surfaces of an overhead projector with clear plastic. Dip one Q-tip into ...

The equation shows that ammonium chloride (a white solid ... reaction takes place between anhydrous cobalt(II) chloride (which is blue) and water to produce hydrated cobalt(II) chloride (which ...

But lurking on the edge of this flavorful lineup is a lesser-known sensation: ammonium chloride. Best known as the tongue-tingling punch behind salty licorice, this sharp taste might just deserve ...

When solid ammonium chloride is shaken with water, a colourless solution forms and the temperature changes from 20°C to 16°C. Give the name of the type of heat change occurring. Zinc reacts with ...

One advantage of the ammonium chloride solution ... Rather, you can remove the saltwater from the box, boil away the water, and collect the salt in its solid form, ready to dissolve in new ...