0
What else can I help you with?
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?
DISADVANTAGES OF CHROME PLATING : - A high price, not only plated high costs, & they would go after plating processing. - Second, not siutable for the more complex parts of the surface. - Third, thin, generally only about 0.05-0.15 mm. - Fourth, the part surfaces finish requirements.
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 can hexavalent chromium be harmful on the nose throat and lungs?
Hexavalent chromium can be harmful when inhaled, leading to irritation and damage to the mucous membranes in the nose and throat. Exposure can cause respiratory issues, including coughing, wheezing, and shortness of breath. Prolonged inhalation may result in more severe conditions, such as lung cancer and chronic respiratory diseases. Overall, it poses significant health risks due to its toxic and carcinogenic properties.
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?
I didn't think it was possible but apparently it is (from grinding stainless steel, that is). I guess if the chromium metal gets hot enough from the friction of the grinding wheel, then some of the chrome will convert to chrome 6. Below is a link. See Table 2. Also see the authors comment before Table 2: "Surprisingly the highest numbers are from arc-air, grinding and welding". The report doesn't give many details. it would have been nice to know if maybe these welders were working in an area with another possible source of chrome 6 such as welding.
