At 100 Â°C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg.
The Eiffel Tower, La Tour Eiffel in French, was the main exhibit of the Paris Exposition â or World's Fair â of 1889. It was constructed to commemorate the centennial of the French Revolution and to demonstrate France's industrial prowess to the world.
Known for great art, Franceâs Eiffel Tower brings technical and aesthetic genius into form in one of the worldâs most iconic monuments. It was France that coined the phrase les grands travaux (large-scale engineering works). Eiffelâs tower has become synonymous with Paris and has appeared in over 200 films.