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| Identifiers | |
|---|---|
3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.033.460 |
| EC Number |
|
PubChem CID | |
| UN number | 3098 [1] |
| |
| Properties | |
| Pr(ClO4)3 | |
| Molar mass | 439.259 [2] |
| Density | 1.563 [1] |
| Melting point | liquid at room temperature [1] |
| Vapor pressure | 0.21 psi (20 °C) [1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Praseodymium(III) perchlorate is the perchlorate salt of praseodymium, with the chemical formula of Pr(ClO4)3. [3]
Praseodymium(III) perchlorate can be prepared from praseodymium(III,IV) oxide. [4] [5] Dissolving praseodymium(III,IV) oxide in a slight excess of hydrochloric acid and adding a small amount of hydrogen peroxide can prepare praseodymium perchlorate. [5]
Praseodymium perchlorate can form two complexes with crown ether 18-crown-6 in stoichiometric ratios of 1:1 and 1:2., [6] and can form complexes with L-proline, [7] glutamic acid, [4] mandelic acid, [4] penicillamine. [4] It can also form complexes with imidazole and alanine. [5]
Terbium(III) chloride (TbCl3) is a chemical compound. In the solid state TbCl3 has the YCl3 layer structure. Terbium(III) chloride frequently forms a hexahydrate.
Hajime Tanabe was a Japanese philosopher of science, particularly of mathematics and physics. His work brought together elements of Buddhism, scientific thought, Western philosophy, Christianity, and Marxism. In the postwar years, Tanabe coined the concept of metanoetics, proposing that the limits of speculative philosophy and reason must be surpassed by metanoia.
Wuyi University is a public university based in Jiangmen, Guangdong, China.
Yoshio Nishi was a Japanese scholar of Tibeto-Burman linguistics. He first studied linguistics while a student at the International Christian University (Tokyo) under the leadership of Roy Andrew Miller. After the master's coursework at the University of Tokyo and his time studying at Rangoon University, he taught at Kyushu University, Kagoshima University, Ehime University, and Kobe City University of Foreign Studies. In 1996 when the university newly founded the doctoral course at its graduate school, he was the only D-maru-gō professor of linguistics qualified to supervise doctoral students. He is now a professor emeritus at Kobe City University of Foreign Studies, and was nominated in 1993 as a distinguished professor at Central University of Nationalities in Beijing.
Yang Shouren is a professor in the School of Earth and Space Sciences in Peking University.
Estradiol/megestrol acetate (E2/MGA), sold under the brand names Mego-E and Chinese injectable No. 2, is a form of combined injectable birth control which is used in the People's Republic of China. It contains 3.5 mg estradiol (E2), an estrogen, and 25 mg megestrol acetate (MGA), a progestin. It is a microcrystalline aqueous suspension with a defined particle size range. The medication is given once per month by injection into muscle.
Praseodymium(IV) oxide is an inorganic compound with chemical formula PrO2.
Dysprosium(III) fluoride is an inorganic compound of dysprosium with a chemical formula DyF3.
Terbium(III) fluoride is an inorganic compound with chemical formula TbF3. It is hard to dissolve in water. It can be produced by reacting terbium(III) carbonate and 40% hydrofluoric acid at 40°C.
Gadolinium(III) fluoride is an inorganic compound with a chemical formula GdF3.
Scandium perchlorate is an inorganic compound with the chemical formula Sc(ClO4)3.
Praseodymium(III) hydroxide is an inorganic compound with a chemical formula Pr(OH)3.
TMSR-LF1 is a 2 MWt molten salt reactor (MSR) pilot plant located in northwest China.
Nickel(II) perchlorate is a inorganic compound with the chemical formula of Ni(ClO4)2, and it is a strong oxidizing agent. Its colours are different depending on water. For example, the hydrate forms cyan crystals, the pentahydrate forms green crystals, but the hexahydrate (Ni(ClO4)2·6H2O) forms blue crystals.
Praseodymium(III) carbonate is an inorganic compound, with a chemical formula of Pr2(CO3)3. The anhydrous form is olive green, and many of its hydrates such as heptahydrate and octahydrate are known. They are all insoluble in water.
Terbium compounds are compounds formed by the lanthanide metal terbium (Tb). Terbium generally exhibits the +3 oxidation state in these compounds, such as in TbCl3, Tb(NO3)3 and Tb(CH3COO)3. Compounds with terbium in the +4 oxidation state are also known, such as TbO2 and BaTbF6. Terbium can also form compounds in the 0, +1 and +2 oxidation states.
Gallium perrhenate is an inorganic compound with the chemical formula of Ga(ReO4)3. It exists in the anhydrous and hydrate forms.
A niobate is an oxo-acid salt formed by niobium(V), and the common forms are metaniobate (NbO3−) and orthoniobate (NbO43−). The most common niobates are lithium niobate (LiNbO3) and potassium niobate (KNbO3).
Indium acetate is an acetate of indium, with the chemical formula In(CH3COO)3. It is soluble in water, acetic acid and mineral acids. It is the precursor of indium-containing compounds such as the solar cell materials CuInS2 and indium phosphide quantum dots.
China uses various methods to carry out nationwide anti-drug publicity and education and popularize drug prevention knowledge. The main purpose is to strengthen citizens' anti-drug awareness and improve citizens' awareness of the harm of drugs. A major task of comprehensive anti-drug publicity and education is to popularize drug prevention knowledge., reveal the serious harm of drug abuse to individuals, families, and society, strengthen the anti-drug awareness of the entire population, especially young people, educate the public security bureau to combat drug-related crimes, and build an effective mechanism for the whole society to prevent drug abuse.Minimize the proportion of new drug addicts.It can be said that the anti-drug publicity and education work with preventive education as the main task is the fundamental solution to the anti-drug work, and its effect kills two birds with one stone.
