42 results about "Triiodide" patented technology

The invention provides an improved method for synthesizing Ioversol, belonging to technology preparing non-ionic X contrast agent. The invention employs 5- hydroxyethyl amido- N, N' - (2,3-dihydroxy propyl)- 2, 4, 6- triiodide-1, 3- benezene diformamide and 2- chlorethanol to proceed nitrogen alkylation reaction in mixing solution of caustic soda and acetonitrile, neutralizing, desalting and desalting reacting solution, re-crystallizing with methyl glycol single dimethyl ether, and getting Ioversol. The invention is characterized by soft reacting condition, short reaction time, and stable quality, low cost and suitable for industrialized production.

An organic light emitting diode display includes: a substrate; an organic light emitting element on the substrate; and a capping layer on the organic light emitting element and including a high refraction layer formed of an inorganic material having a refractive index which is equal to or greater than about 1.7 and equal to or less than about 6.0, wherein the inorganic material includes at least one selected from CuI, thallium iodide (TlI), AgI, CdI₂, HgI₂, SnI₂, PbI₂, BiI₃, ZnI₂, MnI₂, FeI₂, CoI₂, NiI₂, aluminium iodide (AlI₃), thorium(IV) iodide (ThI₄), uranium triiodide (UI₃), MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, SnS, PbS, CdS, CaS, ZnS, ZnTe, PbTe, CdTe, SnSe, PbSe, CdSe, CuO, Cu₂O, WO₃, MoO₃, SnO₂, Nb₂O₅, Ag₂O, CdO, CoO, Pr₂O₃, Bi₂O₃, Fe₂O₃, AlAs, GaAs, InAs, GaP, InP, AlP, AlSb, GaSb, and InSb.

A chemically amplified resist composition comprising a quencher containing a quaternary ammonium iodide, dibromoiodide, bromodiiodide or triiodide, and an acid generator exhibits a sensitizing effect and an acid diffusion suppressing effect and forms a pattern having improved resolution, LWR and CDU.

The invention relates to a preparation method of three perovskite thin films added with triiodide. The perovskite thin film is doped with triiodide ions, the triiodide ions with a proper concentrationare doped in the shorter preparation time, other impurities are not introduced to participate in an intramolecular exchange process of perovskite, the internal defects of the perovskite material arepassivated, and the charge-carrier lifetime in perovskite is improved, so that the performance and stability of the perovskite material are improved, and the industrial production is promoted. The invention also discloses a preparation method of a perovskite cell containing the perovskite thin film and the prepared perovskite cell. According to the method, the triiodide ions can be rapidly fused in the perovskite precursor solution and are subjected to auxiliary crystallization, and the perovskite defects are passivated, so that the service life of charge carriers is prolonged, the space carrier dynamics is optimized, and more excellent photovoltaic device performance is realized.

The invention discloses a method for preparation of acetic anhydride and acetic acid by means of carbonyl synthesis of methyl acetate and methanol azeotrope. The synthesis reaction is operated in a carbonyl synthesizing kettle (1) which is provided with a mixer, a bypass circulation device controlled by a high-pressure pump and a gas distributor (8) at the bottom. The method includes steps of adding azeotrope and catalyst from the upper portion of the kettle, and gaseous carbon monoxide is fed into the kettle from the bottom of the kettle through the gas distributor (8). The internal pressureof the kettle is 3.0-4.5MPa, and the reaction temperature is 140-220 GEG C. The catalyst includes rhodium catalyst, catalysis-supporting methyl iodide and lithium acetate, the rhodium catalyst with the concentration ranging from 200ppm to 800ppm is selected from rhodium triiodide or rhodium chloride, adding quantity of the methyl iodide is 10-30% of that of the azeotrope, and the concentration ofthe lithium acetate is two to three times of that of the rhodium catalyst. Reaction liquid sequentially passes through a flash evaporation kettle (2), a light component removing tower (3), an acetic acid tower (4) and an acetic anhydride tower (5) to obtain acetic anhydride with purity higher than 97% and acetic acid with purity higher than 99%. The method effectively resolves the problem of comprehensive utilization of methyl acetate and methanol azeotrope.

The invention relates to a method for preparing for iodine yucca in the field of non-ionic X-ray contrast agent preparing technology. The chemical name of the iodine yucca is 5-5-[acetyl (2, 3-dihydroxy propyl)amido]-N-(2,3-dihydroxy propyl)-N'-(2-hydroxyl ethyl)-2,4,6-triiodide-1,3-benzene diformamide. The invention uses 5-amido -N-(2-hydroxyl ethyl)-2, 4, 6-triiodide formamide benzene carbonic acid as starting raw material to do acylating reaction, acylating chlorination reaction, amidation reaction and alkanisation reaction to obtain the iodine yucca product, which is a new type of non-ionic X-ray contrast agent.

Iodogallium phthalocyanine and bromogallium phthalocyanine having novel crystalline forms characterized by X-ray diffraction patterns according to CuKalpha characteristic X-ray diffraction method and exhibiting excellent zirconium phthalocyanine can be obtained through appropriate selection of a reaction solvent, followed by milling or stirring in an appropriate solvent. For example, alpha-chloronaphthalene is a suitable solvent for reaction between phthalonitrile and gallium triiodide or tribromide to provide iodogallium phthalocyanine or bromogallium phthalocyanine. Reaction of chlorogallium phthalocyanine or hydroxygallium phthalocyanine with hydroiodic (or hydrobromic) acid is also effective for providing a novel crystal form of iodo-(or bromo-)gallium phthalocyanine. Zirconium phthalocyanine exhibiting good electrophotographic performances can be obtained through a similar process.

The invention relates to a method for preparing 5-acetylamino-2, 4, 6-triiodide-1, 3-phthalic diamide. 5-acetylamino-2, 4, 6-triiodide isophthalic acid is adopted as raw material and ionic liquid is used as a reaction medium, which firstly are acyl chloridized with triphosgene under the function of catalyst and amidated after the acyl chloridization reaction, thus obtaining the target product after separation and purification. The catalyst is organic amine compound and the ionic liquid is selected from imidazole salt, pyridinium salt, quaternary ammonium salt or quaternary phosphor salt. The method of the invention is suitable for carrying out scale industrial production with relatively small environmental pollution, high yield and low production cost.

The invention provides a method for preparation of rhodium triiodide, which contains: using trivalent rhodium hydroxide and hydriodic acid as reactive raw material, adding proper hydriodic acid solution of certain concentration into said trivalent rhodium hydroxide, heating up to 60-100Deg. C and mixing, keeping for 2-6 hours, and filtering, washing and drying to prepare product. The prepared rhodium triiodide is cinereous and porous, and it is easy to wash and filter; the rhodium content in the product is about 19.5-21.5%, and the impurity is almost negligible; and the product is especially suitable to be a catalyst for synthesis of acetic acid by carbonylation of methanol.

A composition having antimicrobial activity is provided. The composition comprises a polysaccharide, a stabilizer, and a triiodide, where the triiodide decomposition to iodide and volatile iodine can be significantly suppressed by the presence of the stabilizer. Methods of preparing and using the composition and devices prepared therewith are also disclosed. As compared to liquid forms comprising triiodide, stabilized solid forms can be used for a much wider range of applications due to their shape stability and a significantly smaller volume and weight of total material.