Vapor pressure 9.9 x 10-18 mm Hg. 23. 24 KI crystallizes in the sodium chloride structure, hexahedral crystals. It is less hygroscopic than sodium. 25 iodide, making it easier to work with. Potassium iodide is stable in dry air but slightly hygroscopic in. 26 moist air.
Earlier this year China opened the Quindao Haiwan Bridge, the world's longest bridge over water stretching 26.4 miles. With the opening of the Quindao Haiwan, Louisiana's Lake Pontchartrain Bridge fell to second longest after holding the top spot since it opened in 1956. Click here to see the bridges > Â».
10 of the world's longest bridges. Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds. Longest suspension bridge â The world's longest suspension bridge, the Akashi-Kaikyo Bridge in Japan, spans the Akashi Strait that separates Kobe from Iwaya. Longest inhabited bridge â KrÃ¤merbrÃ¼cke, the longest inhabited bridge, is located in Erfurt, Germany. It's a stone arch bridge dating back to 1325.