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EL BORO Y EL MUNDO ARN
(Pontificia Universidad Católica del Perú, 2019-11-20) Laos, Roberto; Benner, Steven
Besides its multiple commercial uses, borate minerals have been recently of great interest for researchers seeking for an explanation to the origin of life on Earth. The largest borate mineral deposit in Peru is located in a salt flat in the Arequipa province.
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El cadmio, ¿su presencia nos alerta de la contaminación antropogénica?
(Pontificia Universidad Católica del Perú, 2019-11-26) Gamboa, Nadia
Cadmium is very scarce in nature and its presence in the environment is due to industrial development. Irresponsible waste management makes it appear in freshwaters and agricultural soils. It is very toxic and bioaccumulative, causing itai-itai disease.
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Celebrando los 150 años de la tabla periódica
(Pontificia Universidad Católica del Perú, 2019-11-30) Ortega-San-Martin, Luis
No presenta resumen
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El cobre: un metal indispensable en la vida cotidiana y en los organismos
(Pontificia Universidad Católica del Perú, 2019-11-25) Requejo-Roque, Katherinne I.
Copper is a metal whose versatility has enabled its application in medicine, agriculture, and materials science. In nature, copper is available in the metallic form with an orange-red color and in copper compounds found in minerals. The metallic ions Cu(I) and Cu(II) enable biological functions such as cellular respiration. Besides, copper is used as a catalyst to obtain natural products and polymers.
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Descubriendo ambas caras de un mismo elemento inusual: el mercurio
(Pontificia Universidad Católica del Perú, 2019-11-26) Cañari-Chumpitaz, Cristhian
The only liquid metal on the periodic table (at room temperature) that has changed the way we think on modern chemistry, introducing the concepts of pressure, vacuum and properties of gases, is mercury. Nevertheless, currently its high toxicity has made this element become a threat on public health. In this article we will describe the applications and hazards associated to this unique element.
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Dos opciones entretenidas para acercarnos a la tabla periódica de los elementos químicos
(Pontificia Universidad Católica del Perú, 2019-11-27) Hernández, Yulán
En esta recomendación se hace una pequeña revisión de los aspectos más destacados de dos libros sobre la tabla periódica: "Los elementos”, de Theodore Grey, y "Los elementos. La nueva guía de los componentes básicos del universo", de Jack Challoner.
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Estaño: transcendencia mundial, producción en Perú
(Pontificia Universidad Católica del Perú, 2019-11-26) Sojo Cardozo, Pedro
A brief review about the importance of tin on a great variety of industrial and human life applications is presented. Toxicity of some tin organometallic compounds is also put forward.
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Mendeleev: más allá de la tabla periódica
(Pontificia Universidad Católica del Perú, 2019-11-27) Rabinovich, Daniel
The stamps issued in the world that celebrate 150 years of the periodic table of the elements and pay tribute to the Russian chemist Mendeleev
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El molibdeno, un elemento tan versátil como vital
(Pontificia Universidad Católica del Perú, 2019-11-25) Gutiérrez-Zorrilla, Juan M.
Molybdenum, produced in Peru as a byproduct of the copper mining industry, was discovered in the XVIIIth century. It is usually added to steel alloys, is amply used in different pigments and its presence in enzymes makes it a relevant element in life.
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La OPQ celebra los 150 años de la Tabla Periódica en París y Oporto
(Pontificia Universidad Católica del Perú, 2019-11-27) Salas, Paloma; Coello, Yves; Chong, Miguel
In 2019, the sesquicentennial of the publication of the periodic table proposed by Dmitri Mendeleev is commemorated. As part of this celebration, the students selected by the 2018 Peruvian Chemistry Olympiad (OPQ) participated in two international competitions representing Peru.
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El oro: una materia prima esencial para el mundo
(Pontificia Universidad Católica del Perú, 2019-11-26) Marchese Morales, Adollfo
Gold is an inert metal of symbol Au and atomic number 79. Peru is the world's sixth-largest gold producer, and La Libertad is its first producer department of this metal. It is of great importance for jewelers, physicians, and, of course, in economics: gold is of great value to investors as a refuge asset.
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El telurio en la era tecnológica actual
(Pontificia Universidad Católica del Perú, 2019-11-26) Avila, Edward E.
Tellurium, Te, is a chemical element of low abundance on Earth. Its importance in the current technological era has given it preponderance for its non-linear optics properties in the development of devices with applications in alternative energies.
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Tesis de licenciatura y maestría Sección Química de la PUCP, 2019
(Pontificia Universidad Católica del Perú, 2019-11-28) autores, varios
Summary of the bachelor and master thesis defended (until October 2019) in the Chemical Section (PUCP)
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El wolframio: elemento imprescindible en nuestra vida diaria
(Pontificia Universidad Católica del Perú, 2019-11-26) Sánchez-Benítez, Javier
Tungsten has become an indispensable element for our daily life. Due to its physical and chemical properties, this metal, as well as its alloys, is considered nowadays as a strategic and necessary element, with which we share our life.
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Zinc, un elemento químico muy versátil
(Pontificia Universidad Católica del Perú, 2019-11-25) Piedra Marín, Gilberto
Zinc is a shiny metal whose surface quickly darkens upon contact with air. The main industrial application of this metal is the galvanization of iron and steel parts. Peru is the second largest producer of zinc worldwide, and regionally, the Ancash region is the first producer of this metal.