okt 21, 2023 | Ikke kategoriseret
Eliminate the reaction DBU has been used in a variety of elimination reactions to enable reagent molecules to introduce unsaturated bonds, som mellemprodukter og råvarer til organisk syntese, and just a few examples are enough to see the application of DBU in...
okt 20, 2023 | Ikke kategoriseret
1. Application in hair treatment agent The important characteristic of diamine is that its homopolymer or copolymer is insoluble in water, but it has “water respiration”, the water absorption rate reaches 20% til 30% of its own weight, and when the...
okt 20, 2023 | Ikke kategoriseret
1. Used as an acid-base indicator and an indicator for determining the acid value of oil Phenolphthalein has a very interesting color-changing reaction. Under syre-nær-neutrale forhold (PH0-8.2), phenolphthalein -molekyler adskiller sig ikke og er farveløse. In the...
okt 20, 2023 | Ikke kategoriseret
Trimethyl orthoacetat, Også kendt som trimethoxyethan, er en vigtig primær syreester, den molekylære formel (C5H12O3) bruges hovedsageligt i medicin, pesticider, krydderier og anden syntese. De sædvanlige syntesemetoder er acetonitrilproces, which uses...
okt 20, 2023 | Ikke kategoriseret
Dichloroacetyl chloride is an important intermediate in the production of insecticides and herbicides, og er også vidt brugt inden for hjælpestoffer og farmaceutisk syntese. The main synthesis methods are dichloroacetate acyl chloride method and...
