Rheological behavior of sodium alginate solutions with added divalent metal salts and their use as thickeners in cotton printing with reactive dyes

2001 ◽  
Vol 20 (1) ◽  
pp. 58-71 ◽  
Author(s):  
M. M. El-Molla ◽  
H. S. El-Sayad
Keyword(s):  
Sodium Alginate ◽  
Rheological Behavior ◽  
Reactive Dyes ◽  
Divalent Metal ◽  
Metal Salts

scholarly journals Synthesis and Bioactivity of Quinone Mono- and Dioxime Salts

2020 ◽  
Vol 10 (5) ◽  
pp. 6148-6156
Keyword(s):  
Alkali Metal ◽  
Phytophthora Infestans ◽  
Metal Salt ◽  
Human Life ◽  
Alkali Metal Hydroxide ◽  
Divalent Metal ◽  
Metal Salts ◽  
Zinc Salts ◽  
Harmful Organisms ◽  
Two Stages

Eliminating all kinds of harmful organisms is an important task in agriculture, food production, and human life. Quinone oximes and their salts are good bioactive compounds to attain this aim. The alkali metal salts of quinone mono- and dioxime have been synthesized by the reaction of the corresponding quinone oxime with alkali metal hydroxide. The divalent metal salts have been obtained in two stages. The first stage is the synthesis of the sodium salt of the quinone oxime. The second step is the reaction of the latter with a divalent metal salt. Copper and zinc salts of [(4-oxocyclohexa-2,5-dien-1-ylidene)amino]oxidanide have the highest insecticidal activity against the housefly and rice weevil. The death index is 90–100%. Copper {[2-methyl-4-oxo-5-(propan-2-yl)cyclohexa-2,5-dien-1-ylidene]amino}oxidanide shows good activity against Phytophthora infestans. Inhibition of the growth and development of the Phytophthora infestans is 80%.

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