Chemwill Asia co.,Ltd is one of the leading manufacturer  in CHINA. 

Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary,  Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place. 

Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100ºC to +300ºC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis. 

1.Client is first.

2.Credibility is the most important.

3.Quality control is our life.

4.Great sense of responsibility.

5.We will be responsible for not only our products, our clients, also the society.

The corporation's destination: we will constantly strive to supply customers with new and high-tech products and will keep the leadership in the field. 

Cuprous iodide (CuI), cuprous chloride and cuprous bromide are three commonly used cuprous halides, all of which are white solid. Cuprous iodide is less sensitive than cuprous bromide and cuprous chloride, and iodine is decomposed under strong light. Exists in nature as iodide copper. Cuprous chloride and cuprous bromide can be prepared by reacting with copper in an acidic solution of the corresponding bivalent copper salt. Cuprous iodide can be prepared by adding Cu2Chemicalbook+ to a solution of potassium iodide. Phenylcopper can be prepared by the reaction of cuprous iodide with phenylmagnesium bromide or phenyllithium in ethyl ether. Methyl copper can be prepared by reaction of methyl lithium with cuprous iodide at -15℃ or by reaction of copper nitrate with tetramethyl lead in ethanol at -60 ~ -40℃. Grignard's reagent reacts with cuprous halide to produce hydrocarbon copper. Cuprous halide can be cuprous iodide, cuprous bromide and cuprous chloride.

Cuprous iodide (CuI), white cubic crystal or off-white powder, toxic. Relative density 5.62, melting point 605℃, boiling point 1290℃. Stable to light and air. Cuprous iodide is almost insoluble in water and ethanol, soluble in liquid ammonia, dilute hydrochloric acid, potassium iodide, potassium cyanide, or sodium thiosulfate solutions, and can be decomposed by concentrated sulfuric acid and nitric acid. Add excessive potassium iodide to the acidic solution of copper sulfate or drop the mixed solution of potassium iodide and sodium thiosulfate into the copper sulfate solution under stirring Chemicalbook, and then precipitate and get cuprous iodide. In addition to its general use as a reagent, cuprous iodide is also used as a material in the production of conductive layers for electrically heated paper, as a disinfectant in medicine, as a temperature measuring agent in mechanical bearings, and for trace analysis of mercury. Toxicity: long-term repeated contact with the body is harmful, direct contact with the body should be avoided. Ingestion is very harmful to the body.