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3 de may. de 2024 · Hydrogen peroxide is a chemical compound with the formula H 2 O 2. In its pure form, it is a very pale blue [5] liquid that is slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use.
- H₂O₂
- 34.014 g·mol−1
- −0.43 °C (31.23 °F; 272.72 K)
- Miscible
Hace 6 días · hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also associated with this nucleus.
27 de abr. de 2024 · Apr. 26, 2024, 10:42 AM ET (BBC) Zane Gbangbola: Boy's flood death to be highlighted by minister. hydrogen cyanide, a highly volatile, colourless, and extremely poisonous liquid (boiling point 26° C [79° F], freezing point -14° C [7° F]). A solution of hydrogen cyanide in water is called hydrocyanic acid, or prussic acid.
Hace 2 días · Mining of sulfur from a deposit at the edge of Ijen 's crater lake, Indonesia. Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.
Hace 1 día · Russia. Coordinates: Russia, [b] or the Russian Federation, [c] is a country spanning Eastern Europe and North Asia. It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. [d] It is the world's ninth-most populous country and Europe's most populous country.
21 de abr. de 2024 · Taj vodonik nazivamo belim, odnosno zlatnim vodonikom - najavio je istraživač USGS-a, upozorivši i kako se vodonik smatra važnim novim medijem za skladištenje i prenos energije. Osim SAD, beli vodonik traže (ili će tražiti) Australija, Španija, Francuska, Kanada i Južna Koreja, ali i manje razvijene države poput Kolumbije ...
13 de abr. de 2024 · Zeleni vodonik označen je kao gorivo budućnosti. Molova fabrika, kapaciteta je 10 megavata i proizvodiće 1.600 tona čistog vodonika godišnje, prenosi RTS. Novo postrojenje koristi isključivo struju iz obnovljivih izvora, dok je najveća korist smanjenje emisija ugljen-dioksida iz najveće mađarske rafinerije "Dunav" – za 25.000 tona godišnje.
