Preparation method and application of ammonium N-alkyl dithiocarbamate and water aqua thereof
An alkyl dithioamino, ammonium formate technology, applied in the application, herbicides and algaecides, weed elimination equipment and other directions, can solve the problems of single variety, soil compaction and other problems, achieve convenient preparation, obvious effect, The effect of good application prospects
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Embodiment 1
[0039]1000 ml reaction bottle, add 68.5 grams of water, add 100 grams of 40% monomethylamine, 176 grams of 25% ammonia water, control the temperature at 25-30 ° C, slowly add 100 grams of 97% carbon disulfide dropwise under airtight conditions, drop after 2 hours, add dropwise After the completion, the temperature was controlled at 25-30° C., and the stirring reaction was continued for 1 hour to obtain 436 grams of N-methyl ammonium dithiocarbamate aqueous preparation, with a content of 35.4% and a yield of 98.1%. Reaction formula:
[0040] .
Embodiment 2
[0042] 1000 ml reaction bottle, add 136 grams of water, add 83 grams of 70% monoethylamine, 176 grams of 25% ammonia water, control the temperature at 25-30 ° C, slowly add 100 grams of 97% carbon disulfide dropwise under airtight conditions, drop after 2 hours, add dropwise After completion, control the temperature at 25-30°C, continue stirring and reacting for 1 hour, and obtain 485 grams of N-ethylammonium dithiocarbamate aqueous preparation, with a content of 35.5% and a yield of 98.0%; the reaction formula:
[0043] .
Embodiment 3
[0044] Embodiment 3 (one-step method prepares N-isopropyl ammonium dithiocarbamate aqueous solution)
[0045] 1000 ml reaction bottle, add 191 grams of water, add 76 grams of 99% isopropylamine, 176 grams of 25% ammonia water, control the temperature at 25-30 ° C, slowly add 100 grams of 97% carbon disulfide dropwise under airtight conditions, and drop it in 2 hours. Control the temperature at 25-30°C, continue to stir and react for 1 hour to obtain 533 grams of N-isopropylammonium dithiocarbamate aqueous solution, with a content of 35.5% and a yield of 98.2%; the reaction formula:
[0046] .
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