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Hexavalent refers to a chemical compound or element that has a valence (combining capacity) of six. This term is commonly used in chemistry to describe elements like chromium and molybdenum that can form six bonds with other elements. Hexavalent compounds can have unique chemical properties and applications.
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Sulfur hexafluoride is an example of a what?
Sulfur hexafluoride is an example of a chemical compound, specifically a hexavalent sulfur compound containing one sulfur atom and six fluorine atoms. It is commonly used as a non-toxic gas insulator in electrical equipment due to its high dielectric strength.
Is chromium reactive or non-reactive?
Chromium is considered to be non-reactive in its elemental form. However, it can exhibit varying levels of reactivity depending on its oxidation state. For example, hexavalent chromium compounds can be highly reactive and toxic, whereas trivalent chromium compounds are less reactive.
What is the equivalent zinc plating designation to Type II class 3 of QQZ325 except in ASTM B633?
The equivalent zinc plating designation in ASTM B633 for QQZ325 Type II class 3 is Fe/Zn 25. Fe/Zn 25 refers to a zinc plating with a minimum thickness of 8µm (0.0003 inches) and a supplementary hexavalent chromate conversion coating.
Chrome plating disadvantages and advantages?
Advantages of chrome plating include durability, resistance to corrosion, and an attractive finish. Disadvantages include high cost, environmental concerns during the plating process, and potential health risks associated with exposure to hexavalent chromium.
Does dependent mean to replace?
No, dependent means to rely on or be influenced by something else. It does not mean to replace.
What is the purpose of hexavalent chromium?
Hexavalent chromium is a chemical used with wood preservation, textile dyes, and leather tanning. When it is inhaled it is considered to be a carcinogen.
What is the chemical make up of hexavalent chromium?
It is a valence of chromium. The hexavalent chromium is present in anions as CrO42- and Cr2O72-.
What is the charge of ion phosphorus?
Phosphorus can be bi-, tri-, penta- and hexavalent.
What chemical was responsible for poisoning the ground water in Erin Brockovich?
hexavalent chromium
Why can't extrinsic semiconductors be fabricated from bivalent and hexavalent elements?
My thinking is ... If intrinsinc semicoductor is doped with Hexavalent Impurity, then energy level of outermost orbit of hexavalent atom, will fall below than that of pentavalent atom, so more amout of energy will be required to move this newly generated electron to move from fermi level to conduction band of semicondoctor. And vice versa for Bavalent.
What chemical did Erin Brockovich dis cover was poisoning the water in Hinckley CA?
Hexavalent Chromium
Use hexavalent or divalent impurity in diode?
Called "doping" forget specifics--studied long ag
What are words that start with hex that mean six?
cachexiascachexiccachexiescachexycathexescathexiscyclohexanecyclohexanescyclohexanonecyclohexanonescycloheximidecycloheximidescyclohexylaminecyclohexylamineshexhexachlorethanehexachlorethaneshexachloroethanehexachloroethaneshexachlorophenehexachloropheneshexachordhexachordshexadhexadehexadecimalhexadecimalshexadeshexadichexadshexagonhexagonalhexagonallyhexagonshexagramhexagramshexahedrahexahedronhexahedronshexahydratehexahydrateshexameterhexametershexamethoniumhexamethoniumshexamethylenetetraminehexamethylenetetramineshexaminehexamineshexanehexaneshexaplahexaplarhexaplashexaploidhexaploidieshexaploidshexaploidyhexapodhexapodieshexapodshexapodyhexarchieshexarchyhexedhexerhexereihexereishexershexeshexinghexobarbitalhexobarbitalshexokinasehexokinaseshexonehexoneshexosaminidasehexosaminidaseshexosanhexosanshexosehexoseshexylhexylresorcinolhexylresorcinolshexylsnarthexnarthexesunnilhexiumunnilhexiums
What are some words that begin with the hexa prefix?
hexahedron, hexaphyllous, hexadactylia, hexacyclic, hexactine, hexavalent, hexavaccine, hexapod, hexaploid, hexane, hexagram,
How do you store hexavalent chromium?
For example potassium dichromate is not stored in metal containers, not close to combustible materials, it is placed in a controlled area, works permitted only for skilled personnel.
Can hexavalent chromium be generated from grinding?
Yes, hexavalent chromium can be generated from grinding processes on materials that contain chromium, such as stainless steel. Dust and fumes created during grinding can contain hexavalent chromium if the material being ground is heated to high temperatures, leading to its formation through oxidation. Protection measures, such as using proper ventilation and personal protective equipment, should be implemented to prevent exposure to hexavalent chromium during grinding operations.
What has the author Donald G Lee written?
Donald G. Lee has written: 'The oxidation of organic compounds by permanganate ion and hexavalent chromium' -- subject(s): Oxidation, Permanganates, Chromium ions
