نتایج جستجو برای: mixed trialkylphosphates
تعداد نتایج: 220707 فیلتر نتایج به سال:
the transesterification process of trimethylphosphate with ethanol and isopropanol is examined. it is found that the reaction does not proceed in the absence of base even at temperature up to 100°c, whereas in the presence of sodium alkoxide as a catalyst it takes place at room temperature leading to a mixture of mono-,bi-, tri-substitute esters as well as the minor by-products resulting from t...
Trialkylphosphates are of considerable interest from the military-chemical point view as precursors highly toxic organophosphorus toxicants, possible products their decontamination, complexing agents in processes reprocessing used nuclear fuel, etc. Meanwhile, development ways to identify these substances is still its infancy. In addition, trialkylphosphates an interesting subject for search a ...
The transesterification process of trimethylphosphate with ethanol and isopropanol is examined. It is found that the reaction does not proceed in the absence of base even at temperature up to 100°C, whereas in the presence of sodium alkoxide as a catalyst it takes place at room temperature leading to a mixture of mono-,bi-, tri-substitute esters as well as the minor by-products resulting from t...
copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.
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