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Secondary efflorescence on the dam of the Robert Moses Niagara Power Plant.
Secondary efflorescence on the dam of the Robert Moses Niagara Power Plant.
Primary efflorescence on a brick wall in Germany.
Primary efflorescence on a brick wall in Germany.
Primary efflorescence on a firestop mortar at Mississauga Civic Centre in Mississauga, Ontario City Hall.
Primary efflorescence on a firestop mortar at Mississauga Civic Centre in Mississauga, Ontario City Hall.
Substantial primary efflorescence on a building in Denver, Colorado.
Substantial primary efflorescence on a building in Denver, Colorado.
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Sodium carbonate
Sodium carbonate