Document Details

Document Type : Project 
Document Title :
Effect of solvent on the rate of speed of reaction: substitution reactions neighborhoods in anhydrous solvents.
تأثير المذيب على معدل سرعة التفاعل: تفاعلات إبدال المجاورات في المذيبات اللامائية.
 
Document Language : Arabic 
Abstract : Try the effect of some local plants in the Kingdom of Saudi Arabia Euphorbia helioscopia jatropha glauca, Bulinus truncates, Biomphalaria Arabica on the families of the intermediate snail. Was J. glauca is more effective than E.helioscopia B.truncatus snails and plants are more vulnerable for Biamphalaria arabica. Alosithona was extracted from each plant extract is more effective than Alkruforma alcohol or water, and the (90 0 C) of the extract Alosithona E. helioscopia for snails Biamphalaria arabica truncates 50 and 40 ppm respectively and the ratios for the plant J. . glauca 35,45 ppm, respectively. Increased the effect of plants with increasing duration of exposure (resulting in the death of 100% of the snails during the period of 48 hours in the effective dose) and with increasing temperature, and extracts from plants subjected to sunlight for a period of 8 hours to a slight decrease in the effectiveness of the plants. Experience has led the field on the aqueous extract of the plant J. glauca to the death of 37.5% of snail shells with natural Biamphalaria Arabica 32.98% of snails in the cages was a plant with a lethal effect (100%) on Sorcaraa Hitosoma Mansona after 2.5 hours of exposure to 50-300 ppm. The fish died after 3 or 4 hours of exposure to 50 or 100 ppm of aqueous extract of J. glauca and E.helioscopia respectively. 
Publishing Year : 1408 AH
1988 AD 
Sponsor Name : kau 
Sponsorship Year : 1408 AH
1988 AD 
Added Date : Wednesday, April 30, 2008 

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Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عباس عباس العوضيalawadhi, abbas abbasInvestigatorDoctorate 

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