30 results about "Chromium trichloride hexahydrate" patented technology

The invention discloses a carbon nanotube composite chromium plating solution and an electroplating method. The carbon nanotube composite chromium plating solution comprises the following components by content: 150-210g / L chromic chloride hexahydrate, 120-140g / L citrate, 40-60g / L oxalate, 60-90g / L urea, 10-20g / L formic acid, 90-120g / L ammonium bromide, 8-18g / L carbon nanotube, 0.3-0.6g / L fatty alkyl methyl halide salt and 0.1-0.2g / L alkylbenzene sulfonate. The plating solution contains carbon nanotube, due to self rigidity of carbon nanotube, the hardness and wear resistance of a plating layer are increased; on one hand, permeation of a corrosion solution can be prevented by filling the aperture of a plating layer and winding the metal crystal grain surface by carbon nanotube, on the other hand, a minisize primary battery is formed by nano WC and the alloy metal microcrystal, passivation of chromium can be promoted, and corrosion resistance is increased.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), R is a hydrogen atom or a C1-C4 straight chain or alkoxy group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand 2,2,6,6-tetramethyl-3,5-heptanedione to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The invention discloses a method for preparing a color hollow glass bead insulation coating through using a chemical coating technology. A chromium trichloride hexahydrate solution is hydrolyzed to generate a chromic oxide crystal, and the chromic oxide crystal precipitates and coats the surface of a hollow glass bead. The concentration of the chromium trichloride hexahydrate solution is reasonably controlled in the hydrolysis process to make the hollow glass bead uniformly coated with a chromic oxide film, so the dispersibility is obviously improved, the color hollow glass bead has a good heat conduction coefficient; and the greenness of the chromic oxide is introduced, so the color hollow glass bead has a high reflectivity on lights in 500-550 nm and 780-2300 nm wavebands, and remarkablyimproves the light reflection effect. The method improves the problem of unsatisfactory dispersibility of the hollow glass bead in an aqueous coating, introduces the color to the hollow glass bead, makes the hollow glass bead have the ability to become a colorizing functional pigment filler, and provides a new preparation technology for the preparation of a color composite exterior wall heat insulation coating.

The invention provides a red organic electrophosphorescent material iridium metal complex with the structure represented by formula (1). In the formula (1), each of R1 and R2 is a methyl group. The red organic electrophosphorescent material iridium metal complex is prepared through the following steps: carrying out a Suzuki coupling reaction on an iridium metal complex to prepare a cyclomedtalating ligand, carrying out a polymerization reaction on the cyclomedtalating ligand and chromium trichloride hexahydrate in a 2-ethoxyethanol and water mixed solvent to obtain a chlorendic dimer, and carrying out a complex reaction on the chlorendic dimer and an auxiliary ligand 2,2,6,6-tetramethyl-3,5-heptanedione to obtain the red organic electrophosphorescent material iridium metal complex represented by formula (1). The above material has good energy transmission efficiency and appropriate red light emitting wavelength, and can be widely used to make red or white phosphorescent electroluminescent devices in order to reduce the power consumption of the devices, improve the performances of the devices and prolong the life of the devices.

The invention discloses a preparation method of a green pigment capable of reflecting infrared ray, and a thermal-insulation paint. According to the preparation method, chromium chloride hexahydrate, and aluminium sulfate octadecahydrate are dissolved in water, and then are uniformly mixed with titanium dioxide and molybdenum trioxide; ammonium hydroxide is added dropwise into an obtained mixture; an obtained mixed material is subjected to ultrasonic wave treatment and stirring dispersion so as to obtain a mixed colloidal coprecipitation containing a composite doping component; the mixed colloidal coprecipitation containing the composite doping component is subjected to precipitation grinding, is subjected to sintering for 2 to 3h at 1000 to 1050 DEG C, is cooled, and then is delivered into a ball mill so as to obtain a powder via grinding. The green pigment possesses excellent infrared reflection performance, and can be added into paint so as to prepare thermal insulation coating products.

The invention relates to nickel-chromium alloy electroplate liquid. A liter of the electroplate liquid comprises from 25g to 35g of nickel sulfate hexahydrate, from 80g to 100g of chromium trichloride hexahydrate, from 30ml to 40ml of formic acid, from 20g to 30g of boric acid, from 1g to 60g of urea, from 30g to 80g of ammonium chloride, from 40g to 60g of potassium chloride, from 30g to 60g of critic acid, from 0.1g to 0.12g of sodium dodecyl sulfate, from 1.5g to 2.5g of saccharin, from 2ml to 4ml of nickel plating brighteners and the balance water. The urea is used as a coordination additive, and the performance of the electroplate liquid is greatly improved, so that behaviors of electrodes, the covering power and the dispersing power of a cathode and the stability, the coating performance and the contamination status of the electroplate liquid are greatly improved.

The invention discloses a method for preparing chromium trichloride hexahydrate by utilizing sodium chromate. The method for preparing chromium trichloride hexahydrate by utilizing sodium chromate comprises the following steps: putting a sodium chromate aqueous solution and a reducing agent in a reaction vessel, controlling temperature to be 115-125 DEG C and slowly dropwise adding hydrochloric acid while stirring; after hydrochloric acid is added, firstly controlling temperature of a reaction solution to be 110-140 DEG C, carrying out reaction on sodium chromate, the reducing agent and hydrochloric acid for a first preset time period while stirring, then controlling the temperature of the reaction solution to be 80-100 DEG C, and curing the reaction solution reacted for the first time period for a second time period while stirring; adding the cured reaction solution into an alkali solution, regulating pH value of the reaction solution to be 6.5-7.5, then filtering to obtain an intermediate product, washing the intermediate product, then adding hydrochloric acid, and carrying out reaction; sequentially carrying out evaporation and concentration, crystallization at room temperature and crystal centrifugal drying on the reaction solution obtained in step three, so that chromium trichloride hexahydrate is obtained. The method for preparing chromium trichloride hexahydrate by utilizing sodium chromate is simple in technology and low in raw material cost and can replace a production method of chromium trichloride hexahydrate by virtue of chromic anhydride.

The invention relates to a component for reducing body fat formation and application thereof. The component comprises lactoferrin and a trivalent chromium compound, wherein the trivalent chromium compound is selected from a group consisting of free chromium trichloride hexahydrate, chromium trichloride, chromium acetate, chromium sulphate, chromium picolinate, chromium nicotinate, chromium glucose tolerance factor, chromium yeast, other inorganic trivalent chromiums, other organic trivalent chromiums as well as compositions of the compounds. The component of the invention can be transferred into muscular tissues by glucoses in helper cells to be used and can reduce the transformation of the glucoses into fats for storage, thereby realizing the control of weight.