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  2. Dysprosium - Wikipedia

    en.wikipedia.org/wiki/Dysprosium

    Dysprosium fluoride and dysprosium oxide are non-flammable. [66] [67] Dysprosium nitrate, Dy(NO 3) 3, is a strong oxidizing agent and readily ignites on contact with organic substances. [10] Soluble dysprosium salts, such as dysprosium chloride and dysprosium nitrate are mildly toxic when ingested.

  3. Rare-earth element - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_element

    The price of dysprosium oxide was US$994/kg in 2011, but dropped to US$265/kg by 2014. [ 63 ] On August 29, 2014, the WTO ruled that China had broken free-trade agreements, and the WTO said in the summary of key findings that "the overall effect of the foreign and domestic restrictions is to encourage domestic extraction and secure preferential ...

  4. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    As 99.9% pure thorium oxide, price per thorium contained. Free on Board port of entry, duty paid. 91: Pa: Protactinium: 15.37: 1.4×10 −6 [i] (3.878 × 10 10 kg) No reliable price available. In 1959–1961 Great Britain Atomic Energy Authority produced 125 g of 99.9% pure protactinium at a cost of $ 500 000, giving the cost of 4 000 000 USD ...

  5. Dysprosium(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Dysprosium(III)_oxide

    Dysprosium oxide (Dy 2 O 3) is a sesquioxide compound of the rare earth metal dysprosium. It is a pastel yellowish-greenish, slightly hygroscopic powder having specialized uses in ceramics, glass, phosphors, lasers, dysprosium metal halide lamps, and as a Faraday rotator [3]. It can react with acids to produce the corresponding dysprosium (III ...

  6. Neodymium magnet - Wikipedia

    en.wikipedia.org/wiki/Neodymium_magnet

    As of 2012, 50,000 tons of neodymium magnets are produced officially each year in China, and 80,000 tons in a "company-by-company" build-up done in 2013. [29] China produces more than 95% of rare earth elements and produces about 76% of the world's total rare-earth magnets, as well as most of the world's neodymium.

  7. Visa policy of India - Wikipedia

    en.wikipedia.org/wiki/Visa_policy_of_India

    From 1 April 2017 e-visas are granted under three categories of tourist, business and medical. The window for application under e-visa scheme was increased from 30 days to 120 days, and duration of stay on e-visa was increased from 30 days to 60 days, with double entry on e-tourist and e-business visa, and triple entry on e-medical visa. [82]

  8. Praseodymium - Wikipedia

    en.wikipedia.org/wiki/Praseodymium

    Praseodymium. double hexagonal close-packed (dhcp) (hP4) Praseodymium is a chemical element; it has symbol Pr and the atomic number 59. It is the third member of the lanthanide series and is considered one of the rare-earth metals. It is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical ...

  9. Indian passport - Wikipedia

    en.wikipedia.org/wiki/Indian_passport

    The Indian passport is a passport issued by the Ministry of External Affairs of the Republic of India to Indian citizens for the purpose of international travel. It enables the bearer to travel internationally and serves as proof of Indian citizenship as per the Passports Act (1967). The Passport Seva (Passport Service) unit of the Consular ...