Stewart was adept enough at chemistry to make Prussian blue and began selling laundry bluing. It grew into a huge business with the product available across Canada and the United States.

Over 500 postcard-size watercolour paintings enliven the gallery space at Prussian Blue Art Hub. The exhibition that features the works of 32 artists from across India is part of the gallery’s ...

Big Ben, the iconic clock tower in London, is returning to its former glory. The clock's north face has been restored to its original Prussian blue and gold colors. Sir Charles Barry built the ...

Prussian blue material manufactured by Draslovka to become crucial part of Natron’s sodium-ion battery supply chain New reference facility to be designed and built in Kolin to supply Natron’s ...