Results 131 to 140 of about 70,987 (287)

Preparation and Structures of Crystalline Aromatic Cation-Radical Salts. Triethyloxonium Hexachloroantimonate as a Novel (One-Electron) Oxidant [PDF]

open access: yes, 1998
Triethyloxonium hexachloroantimonate [Et3O+SbCl6-] is a selective oxidant of aromatic donors (ArH), and it allows the facile preparation and isolation of crystalline paramagnetic salts [ArH+•, SbCl6-] for the X-ray structure determination of various ...
Kochi, Jay K.   +3 more
core   +1 more source

Chemo‐Enzymatic Route for Covalent Cellulose Fiber Dyeing

open access: yesChemistry – A European Journal, EarlyView.
This work presents a proof of concept for a chemo‐enzymatic approach to the covalent dyeing of cotton fibers. Laccase/TEMPO oxidation introduces aldehyde groups, enabling subsequent reductive amination with amino dyes. Excellent color homogeneity and wash fastness were demonstrated using acid red 33, highlighting the robustness of the approach and its ...
Awilda Maccow   +6 more
wiley   +1 more source

The Influence of Single, Two, and Three Stage Bleaching on Fading Characteristic of Deinked Stock [PDF]

open access: yes, 1952
A literature survey on the various bleaching methods used on deinked stock and the factors which influence the fading characteristic of deinked stock is compiled. Mention is also made of various additives which have an influence on the fading of a sheet.
Avery, Phillip H.
core   +1 more source

Room‐Temperature Helix‐to‐Disc Conversion of Thia[6]helicene S,S‐Dioxides to Coronene via In Situ Phenoxide Anion Generation

open access: yesChemistry – A European Journal, EarlyView.
In situ phenoxide formation at the benzene terminus triggers room‐temperature conversion of thia[6]helicene S,S‐dioxides to coronene. The solubility contrast drives product precipitation, enabling isolation by simple filtration. This pericyclic annulation between the helical termini provides direct access to coronene‐type planar architectures ...
Kaito Seino, Takashi Murase
wiley   +1 more source

FACTORS RELEVANT TO THE USE OF 1 PERCENT CHLORINE FOR CHLORINATION IN FAMILIES

open access: yesنشریه پرستاری ایران, 2003
According to the reports of world health organization (WHO), 80 percent of human diseases are due to contaminated water either for drinking or sanitation.
Gharibi, M, Dabbaghi, F, Kermansaravi, F
doaj  

Fluidized bed desulfurization [PDF]

open access: yes, 1985
High sulfur content carbonaceous material, such as coal is desulfurized by continuous fluidized suspension in a reactor with chlorine gas, inert dechlorinating gas and hydrogen gas. A source of chlorine gas, a source of inert gas and a source of hydrogen
Kallvinskas, J. J., Ravindram, M.
core   +1 more source

Toward Larger Cyclo‐9,10‐Anthryleneparaphenylenes

open access: yesChemistry – A European Journal, EarlyView.
During a macrocyclization with a dihydroanthracene diol as corner unit, larger oligomers than the trimer and tetramer were formed and isolated up to the nonamer. Their three‐dimensional structures were studied by X‐ray diffraction. The most abundant macrocycles were rearomatized to the corresponding CPP derivatives.
Moritz P. Schuldt   +3 more
wiley   +1 more source

Synthesis and Reactivity of Extremely Electron‐Poor Au(III) Complexes Bearing OTf− or NTf2− Ligands

open access: yesChemistry – A European Journal, EarlyView.
A new family of electron‐poor Au(III) cations bearing bistriflimide or triflate ligands is reported. These cations can undergo direct C─H metalation with simple arenes to give mono‐aryl cations. Subsequent addition of simple halide sources allows for reductive elimination of aryl halides, formally from Ar─H and X−. ABSTRACT The synthesis and structural
Lachlan Barwise   +6 more
wiley   +1 more source

Innovative Approaches for Minimizing Disinfection Byproducts (DBPs) in Water Treatment: Challenges and Trends

open access: yesApplied Sciences
Growing concerns over public health and environmental safety have intensified the focus on minimizing harmful disinfection byproducts (DBPs) in water treatment.
Spyridon K. Golfinopoulos   +2 more
doaj   +1 more source

Coal desulfurization by low temperature chlorinolysis, phase 1 [PDF]

open access: yes
The reported activity covers laboratory scale experiments on twelve bituminous, sub-bituminous and lignite coals, and preliminary design and specifications for bench-scale and mini-pilot plant ...
Andress, D. F.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy