Electrodeposition at rotating cathodes from acidified copper sulphate solution

2007 ◽  
Vol 17 (2) ◽  
pp. 29-35 ◽  
Author(s):  
G. M. Kimber ◽  
D. H. Napier ◽  
D. H. Smith
Keyword(s):  
Copper Sulphate ◽  
Sulphate Solution ◽  
Copper Sulphate Solution

Fixation of Amine Copper Preservatives. Part 1. Reaction of Vanillin, a Lignin Model Compound with Monoethanolamine Copper Sulphate Solution

Holzforschung ◽  
2001 ◽  
Vol 55 (6) ◽  
pp. 585-589 ◽  
Author(s):  
J.N.R. Ruddick ◽  
C. Xie ◽  
F.G. Herring
Keyword(s):  
Copper Sulphate ◽  
Model Compound ◽  
Axial Direction ◽  
Sulphate Solution ◽  
Hydroxyl Group ◽  
Copper Sulphate Solution ◽  
Lignin Model Compound ◽  
Binuclear Molecule ◽  
Lignin Model ◽  
Fixation Reaction

Summary The fixation reaction of copper-ethanolamine preservatives in wood was studied using the reaction between vanillin, a lignin model compound, and ethanolamine-copper sulphate solution. The green compound precipitated after the reaction has been characterized spectroscopically as di(ethanolamine)-bis (vanillinato)dicopper(II); [Cu(vanillin) (ethanolamine)]2. Single crystal X-ray crystallographic studies showed that the crystals of [Cu(vanillin)(ethanolamine)]2 are triclinic with the space group P1 with a = 9.1271(7), b = 10.8723(9), c = 6.360(1) Å, α = 97.08(1), β = 100.63(1), and γ = 110.024(7)°. Z = 1. The binuclear molecule has crystallographic inversion symmetry. The ligand arrangement around the Cu(II) is a distorted square based pyramid, with a base plane made up of two oxygen atoms from the ethanolamine ligands, one oxygen atom from a hydroxyl group in vanillin and one nitrogen atom from ethanolamine. Two Cu-O [1.916(2) and 1.950(5) Å], one Cu-O (hydroxyl) [1.926(4) Å] and one Cu-N [1.999(3) Å] bonds form a plane with Cu-O (methoxyl) [2.303(2) Å] bond in an axial direction at an angle 77 ° to the plane. The result suggests that after treatment with copper-ethanolamine wood preservatives, stable copper-nitrogen-lignin complexes can be formed through reaction with guaiacyl units in lignin.

scholarly journals Preliminary Data on the In Vitro Effect of Copper-Based Compounds on Aerobic Bacterial Microflora Isolated from Sheep Footrot

2018 ◽  
Vol 75 (1) ◽  
pp. 83
Author(s):  
Flore CHIRILĂ ◽  
George Cosmin NADĂŞ ◽  
Sorin RĂPUNTEAN ◽  
Cosmina Maria BOUARI ◽  
Ioana MATEI ◽  
...  
Keyword(s):  
Copper Sulphate ◽  
Soft Tissues ◽  
Aqueous Suspension ◽  
Sulphate Solution ◽  
Gram Negative Bacteria ◽  
Genus Bacillus ◽  
Copper Sulphate Solution ◽  
Effect Of Copper ◽  
Vitro Effect

Contagious sheep footrot is an infectious disease with chronic evolution, usually enzootic, characterized by necrotic or necrotic-purulent inflammation of the soft tissues of the hoof, which causes partial or total detachment of the horn. Cu-based products represented by (I) 1-hydroxyquinoline + Cu on 5% hydroxyapatite, (II) 2 Hydroxyquinoline + Cu + NO3 on 5% Hydroxyapatite and (III) 3 Nitrohydroxyquinoline + Cu on 5% Hydroxyapatite were conditioned in aqueous suspension in a volume of 100 ml, pH 6,0 – 6,4. The products were placed into wells, 20 μL/well, along with 0.5 % copper sulphate solution (Cu control) and Enroxil and Oxitetracycline (control for antibiotics).The results demonstrated that 7 of the samples (58.33 %) are sensitive to the product I, 6 samples (50%) to the product III, 4 samples (33.33 %) to the product 2 and the 0.5% Copper sulphate solution only has a bacteriostatic effect. In comparison to the two antibiotics, 9 samples (75 %) are sensitive to enrofloxacin and only 5 samples (41.66 %) to oxytetracycline. Regarding the associations of microorganisms in the samples with resistance, we have found that these are represented by the most common germs of genus Bacillus, Corynebacterium and Gram negative bacteria, and rarer associations with Micrococcus and Staphylococcus.

The effect of an acidified, ionized copper sulphate solution on digital dermatitis in dairy cows

2012 ◽  
Vol 193 (3) ◽  
pp. 659-663 ◽  
Author(s):  
Menno Holzhauer ◽  
Chris J. Bartels ◽  
Christer Bergsten ◽  
Miriam M.J. van Riet ◽  
Klaas Frankena ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Copper Sulphate ◽  
Sulphate Solution ◽  
Digital Dermatitis ◽  
Copper Sulphate Solution
Sign in / Sign up

Export Citation Format

Share Document