Results 21 to 30 of about 2,245 (216)
Can Telluric Acid Replace Chromate as a Homogeneous Catalyst in the Chlorate Process?
ChemElectroChem, 2023 Finding an alternative to Cr(VI) as catalyst for the conversion of hypochlorite/hypochlorous acid to chlorate is of critical importance to render the industrial chlorate process safe and sustainable.
Annicka Sellin +4 more
doaj +1 more source
Spectroscopic Study of Rare Earth Chromates: Relation to the Structure [PDF]
, 1996 The luminescence spectra of the trivalent europium ion embedded in various rare earth chromates were analyzed. The spectroscopic data in most of chromates are in agreement with the structural determination but for some others the discrepancy between two ...
Lemaitre-Blaise, M. +2 more
core +1 more source
The HBM4EU chromates study – Outcomes and impacts on EU policies and occupational health practices
, 2023 Within the EU human biomonitoring initiative (HBM4EU), a targeted, multi-national study on occupational exposure to hexavalent chromium (Cr(VI)) was performed.
Iavicoli I., Leso V.
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THE CHROMATES OF SILVER AND COPPER
, 1947 At 30 °C. silver oxide reacts with an aqueous solution of chromium trioxide to form the normal silver chromate, Ag2CrO4, and a limited series of solid solutions of silver chromate in silver dichromate (Ag2Cr2O7).
A. N. Campbell, H. P. Lemaire
core +1 more source
New bounds for chromatic polynomials and chromatic roots
Discrete Mathematics, 2015 If $G$ is a $k$-chromatic graph of order $n$ then it is known that the chromatic polynomial of $G$, $π(G,x)$, is at most $x(x-1)\cdots (x-(k-1))x^{n-k} = (x)_{\downarrow k}x^{n-k}$ for every $x\in \mathbb{N}$. We improve here this bound by showing that \[ π(G,x) \leq (x)_{\downarrow k} (x-1)^{Δ(G)-k+1} x^{n-1-Δ(G)}\] for every $x\in \mathbb{N},$ where $
Jason I. Brown, Aysel Erey
openaire +3 more sources
Case Report: Two Cases of Salivary Duct Carcinoma in Workers With a History of Chromate Exposure
Frontiers in Medicine, 2021 Background: Salivary duct carcinoma (SDC), one subtype of the 22 different salivary gland cancers, is a rare malignancy. Risk factors for the development of salivary gland cancer and SDC are largely unknown, although pollution has been described as one ...
Imran Seçin +4 more
doaj +1 more source
Chromatic index determined by fractional chromatic index [PDF]
Journal of Combinatorial Theory, Series B, 2018 21pages
Guantao Chen +4 more
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Lithium intercalation into double rare earth chromates
, 1994 Lithium intercalation into double rare earth chromates was carried out. It was found that the compounds NaxLi1-xLa(CrO4)2 belong to the NaLa(CrO4)2 structural type and may be recommended as fast ionic conductors. At small values of x a third polymorphous
Melnikov, Petr [UNESP], Melnikov, Petr
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Dataset for the selection of electrolytes for Electropolymerization of aniline
Data in Brief, 2021 The most investigated conducting polymer (CP) is polyaniline (PANI)), a promising polymer due to its excellent environmental stability, simplicity of synthesis, and high electrical conductivity [1–4].
Dipak Kumar Gupta +4 more
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The Characterization of Some Iron Chromates
, 1987 As the first step in a systematic review of a range of iron(III) chromates, the Mossbauer chemical shifts, quadrupole splittings and linewidths have been measured for a number of compounds.
PJ Mineely, DL Scott
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