铬酸 - 百度百科
网页铬酸，是一种无机化合物，化学式为H2CrO4。. 2017年10月27日，世界卫生组织国际癌症研究机构公布的致癌物清单初步整理参考，铬（6价）化合物在1类致癌物清单中。.
Chromic acid - Wikipedia
网页Chromic acid may also refer to the molecular species, H2CrO4 of which the trioxide is the anhydride. Chromic acid features chromium in an oxidation state of +6 (and a valence of VI or 6). It is a strong and corrosive oxidising agent and a moderate carcinogen.
hydrogenchromate | HCrO4 - ChemSpider
网页ChemSpider record containing structure, synonyms, properties, vendors and database links for hydrogenchromate.
Chromate and dichromate - Wikipedia
网页Chromate containing minerals are rare. Crocoite, PbCrO 4, which can occur as spectacular long red crystals, is the most commonly found chromate mineral. Rare potassium chromate minerals and related compounds are found in the Atacama desert. Among them is lópezite – the only known dichromate mineral.
Reagent Friday: Chromic Acid, H2CrO4 - Master Organic Chemistry
网页2011年6月3日 · H 2 CrO 4 As A Reagent For The Oxidation Of Alcohols. Once H 2 CrO 4 is formed, its reactions are pretty straightforward: it converts primary alcohols (and aldehydes) to carboxylic acids and secondary alcohols to ketones. Oxidation Of Primary Alcohols To Carboxylic Acids With Chromic Acid: How It Works.
The Cr2O72− CrO42− HCrO4− system revisited - ScienceDirect
网页1997年1月1日 · Abstract. The electronic spectra of aqueous Cr VI solutions in the pH range 3–11 have four isosbestic points, located at 246, 293, 338 and 441 nm. These positions are independent of the total concentration of Cr VI. The existence of the isosbestic points indicates that only two species are present, namely CrO 42− and Cr 2 O 72−, and that ...
Chromic acid | H2CrO4 - ChemSpider
网页Chromic acid. Molecular formula: H 2 CrO 4. Average mass: 118.008. Monoisotopic mass: 117.935816. ChemSpider ID: 22834.
New spectrophotometric evidence for the existence of HCrO4−
网页1998年1月1日 · A spectrophotometric study of the protonation and dimerization of CrO 42− at different concentrations in the pH range 8-2.5 at 25°C in 0.1 M (Na)Cl medium led to the characterization of HCrO 4− and Cr 2 O 72− in terms of …
Advances in the Mechanism of Deposition of the CrO42-, HCrO4-, …
网页1997年2月5日 · Following a methodology based on the “2p K /one site” and “triple layer” models, we further investigated the mechanism of deposition of the CrO 42-, HCrO 4-, and Cr 2 O 72- species on the titania/electrolyte solution interface. The surface of the titania used is consisted of anatase and rutile patches.
New spectrophotometric evidence for the existence of HCrO4−
网页1998年1月1日 · Our spectroscopic data shows that HCrO4− is the predominant species in the MRP in the ABS L64 + Na2SO4 + H2O and PEO1500 + Na2SO4 + H2O, since they exhibited bands around 261 and 353 nm with more intense first bands.
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