In heterogeneous catalysis, the catalyst is in a different phase from the reactants. COA of Formula: C4H2Cl2N2O, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 932-22-9, name is 4,5-Dichloro-3(2H)-pyridazinone. In an article，Which mentioned a new discovery about 932-22-9
Process for dyeing mixed anionic/cationic polyamide substrates with a specific type of vinyl sulfone dye
The invention is a process for dyeing polyamide substrates comprising anionic and cationic fibers in multi-colored patterns. Cross-staining or dyeing of the cationic fibers by the anionic-dyeable nylon colorant is avoided. The anionic dyeable fiber portion is dyed with a fiber-reactive vinyl sulfone dye having one or more sulfonic acid substituents and one or more vinyl sulfone groups with the proviso that the sum of the number of sulfonic acid and vinyl sulfone substituents is at least three. The dyeing process is conducted at a pH of about 2 to about 4. Optionally the cationic portion of the substrate may be dyed with a basic dye in admixture with the vinyl sulfone dye.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 932-22-9, help many people in the next few years.COA of Formula: C4H2Cl2N2O
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2252 – PubChem