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PVP is also used in many technical applications: as a special additive for batteries, ceramics, fiberglass, inks, and inkjet paper, and in the chemical-mechanical planarization process
N-Vinylpyrrolidone (NVP) is an organic compound consisting of a 5-membered lactam ring linked to a (2 carbon) vinyl group. It is a colorless liquid although commercial samples can appear yellowish. It is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene. [2]
Satellite image of Africa, showing the ecological break that defines the sub-Saharan area. Another common approach divides Aregions, or vegetation types: Nubia (Lower Nubia) (Upper Nubia) Upper Egypt and Lower Egypt; The Maghreb is a region of northwest Africa encompassing the coastlands and Atlas Mountains of Morocco, Algeria, and Tunisia.
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Location of Egypt. Egypt is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula.Egypt's economy depends mainly on agriculture, media, petroleum imports, natural gas, and tourism; there are also more than three million Egyptians working abroad, mainly in Saudi Arabia, the Persian Gulf and Europe.
Largest cities See also Further reading External links 0-9 10th of Ramadan 15th of May 6th of October A Abu El Matamir Abu Hummus Abu Tesht Abu Tig Akhmim Al Khankah Alexandria Arish Ashmoun Aswan Awsim Ain El Sokhna B Badr Baltim Banha Basyoun Biyala Belqas Beni Mazar Beni Suef Beni Ebeid Biba Bilbeis Birket El Sab Borg El Arab Borg El Burullus Bush C Cairo D Dahab Dairut Damanhur Damietta ...
In 1952 Egypt’s private sector accounted for 76 percent of economic investment. Following the nationalization plans carried out by President Gamal Abdel Nasser in the effort to build a post-independence socialist state, this percentage drastically shifted within a few decades to government investment accounting for over 80 percent of economic investment. [1]
2-Pyrrolidone, also known as 2-pyrrolidinone or butyrolactam, is an organic compound consisting of a 5-membered lactam, making it the simplest γ-lactam. It is a colorless liquid that is miscible with water and most common organic solvents.