No hay artículos en el carro
No hay artículos en el carroZinc puro 99.99 divertido para jugar y derretir. Cada pieza pesa aproximadamente 12 gramos cada pieza es de aproximadamente 0.3 pulgadas de grosor y de longitud con una diagonal de 0.65 pulgadas. Tienen un patrón más denso y una disposición de moléculas, ya que primero se moldean en una placa enrollada y luego se sellan. Son ideales para un fácil pesaje sin medidas más precisas. Cada pieza pesa aproximadamente 0.028-0.33 libras. Número atómico = 30 Punto de fusión (F) = 787.15 Masa atómica = 65.32 Punto de ebullición (F) = 1665 Densidad (g/cm3) = 7.14 Composición química Zinc 999. 95%% Plomo 0,003% máximo cadmio, 0,003% máximo hierro 0,002% estaño máximo 0,001% cobre máximo 0,001% aluminio máximo 0,001% máximo impurezas totales
Customer
Comentado en los Estados Unidos el 14 de marzo de 2024
Perfect, Just What I needed!Thank you
Keith
Comentado en los Estados Unidos el 29 de junio de 2023
Received my order in 2 days. Shipping was super fast. Pieces are perfect and super pure. Just what I needed for my son’s high school project.
Gary Floyd
Comentado en los Estados Unidos el 13 de enero de 2023
This is for use in making bronze alloys. Is exactly what I ordered.
Cheryl M.
Comentado en los Estados Unidos el 20 de noviembre de 2018
I am using for a rather "strange" application. Read in a book by Mellie Uyldert that soldiers that suffered asthma at home did not have asthma at the front. The improvement was caused by the wearing of zinc identity tags against their chest/windpipe. Zinc was continuously absorbed through the pores. The author suggests wearing a piece of zinc against the the skin by the windpipe. These pieces are just the right size. Taped it there last night and have not had to use my inhaler yet today. Weird...I know...but worth a try. He mentions that the breathing difficulties have something to do with low alkali reserves in the blood with an acidified organism unable to purify itself due to breathing problems. The name of the book is "Metal Magic, The Esoteric Properties and Uses of Metals." It's old but VERY interesting. Bought it "used".
Customer
Comentado en los Estados Unidos el 20 de enero de 2017
I bought these for middle-school science club for a density project. I am measuring density at about 7.6 g/cm3 using the Archimedes method, and the official zinc density is 7.13. I am using a 50mL graduated cylinder to measure the volume and a basic calibrated digital scale, so there is room for error there for sure. But I do wonder about the 99.99 pure statement. But for my purposes they work fine.
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