31 results about "Magnesium Acetate Tetrahydrate" patented technology

A pollution-free manufacturing method for surface electric heating elements is characterized in that a formula of a surface modification solution comprises, by weight, 100g of stannous fluoroboric acid, 1-1.2g of antimony trifluoride, 0.2-0.4g of cupric acetate monohydrate, 0.2-0.4g of magnesium acetate tetrahydrate, a proper amount of hydrofluoric acid and a proper amount of acetic acid, and 100-500ml of distilled water. The pollution-free manufacturing method for the surface electric heating elements comprises the steps of (1) preparing the surface modification solution, wherein the distilled water is acidized through the acetic acid, the stannous fluoroboric acid, the cupric acetate monohydrate and the magnesium acetate tetrahydrate are weighed, stirred and melted in the acidized distilled water respectively, antimony trifluoride is quickly weighed, stirred and added in the acidized distilled water, the mixture is stirred, and all the solutions are mixed evenly, sealed and stored at a shady, cool and ventilating place for use; (2) cleaning base materials; (3) feeding the base materials into a surface modification furnace which is 550-650 DEG C to carry out surface modification on the base materials; (4) brushing silver paste at proper positions of radiant faces, and carrying out mechanical wire leading; (5) powering on to carry out aging by using voltages 1.25 times using voltages. The pollution-free manufacturing method for the surface electric heating elements is suitable for manufacturing the pollution-free surface electric heating elements.

The invention discloses a strontium magnesium silicate nanomaterial and a preparation method thereof. A certain amount of magnesium acetate tetrahydrate, strontium acetate, tetraethyl silicate and urea are dissolved in a certain volume of aqueous ethanol solution and stirred; then, an obtained solution is transferred into a reaction still for a high-pressure hydrothermal reaction, a precipitate obtained after the reaction is dried, placed in a crucible, calcined in a muffle furnace and then naturally cooled to the room temperature, and the white strontium magnesium silicate nanomaterial is obtained. Electrochemical experiments show that the strontium magnesium silicate nanomaterial prepared by means of the method has a broad application prospect when used as a negative electrode material of lithium ion batteries. In the whole preparation process, the operation is simple, the raw material cost is low, the equipment investment is low, and the nanomaterial is suitable for mass production.

The invention discloses a preparation method of a durable hydrophobic anti-reflection film for an evacuated collector tube surface. The method utilizes magnesium acetate tetrahydrate and hydrofluoricacid as raw materials to synthesize Mg(OH)2-xFx particle sol with a hollow rod structure by a solvothermal method, and then a hydrolysis product of Mg(OH)2-xFx and MTES is gelled through hydroxyl group condensation to obtain a CH3-SiO2-MgF2 composite particle sol. A layer of anti-reflection film is coated on the surface of glass with a light transmittance being 92% by a dipping and pulling method.After calcination at a temperature of 350 DEG C or lower, the obtained anti-reflection film has an average light transmittance of 98% or more in a visible light range and a contact angle of 133 degrees. After the anti-reflection film is irradiated for 1000 hours under 150W ultraviolet light, the average light transmittance can still be maintained 98% or more, and the contact angle can still be maintained a hydrophobic state of 120 degrees or above.

The invention belongs to the technical field of medical drugs, and particularly relates to a 5% glucose adult nutrient solution and a preparation method thereof. The invention mainly solves the defects that some glucose injections cause great fluctuation of blood sugar and are easy to cause metabolic complications. The technical scheme of the invention is that the formula of the 5% glucose adult nutrient solution is that the following components are added into 100 mL of injection water: 5000 mg of glucose, 234 mg of sodium chloride, 128 mg of potassium acetate, 32.2 mg of magnesium acetate tetrahydrate, and 30 mg of sodium pyrosulfite; and the 5% glucose adult nutrient solution is prepared by concentrated preparation, diluted preparation, filling and sterilization. The 5% glucose adult nutrient solution of the invention has the advantages of complete metabolism, high energy supply, and less blood sugar fluctuation.

The invention discloses a crystal material. The chemical formula is Mg11(HPO3)8(OH)6, the reflectivity in an ultraviolet-visible-near infrared band of 0.2-2.5 microns is 88% or above, and simultaneously the emissivity in a far infrared band of 2.5-25 microns is 0.90 or above. The invention also discloses a preparation method of the crystal material. The preparation method comprises the following steps: on the basis of raw materials of magnesium acetate tetrahydrate and phosphorous acid, simultaneously adding a cyclohexylamine template agent, and preparing the Mg11(HPO3)8(OH)6 crystal powder bya hydrothermal synthesis method. According to the crystal material provided by the invention, comprehensive performance of reflection and radiation can be well combined, the actual cooling effect is2-10 DEG C better than the common heat reflecting material titanium dioxide in the market, and the crystal material can be well applied to the field of heat reflection infrared radiation.

The invention discloses a glucose hydrogenolysis catalysis Cu / MgO catalyst and a preparation method thereof, and belongs to the technical field of heterogeneous catalysis. In anhydrous anaerobic conditions, by filtering, vacuum distillation and sublimation and purification of a liquid obtained by reaction of cuprous oxide, 1, 5-cyclooctadiene, and hexafluoro-acetylacetone, metal organic precursor hexafluoro-acetylacetone-cyclooctadiene copper and hexafluoro-acetylacetone copper relatively stable to air is produced. Petal shaped Mg (OH) 2 is synthesized by solvothermal method from magnesium acetate tetrahydrate as a raw material by use of a mixture of ethanol and deionized water solution as solvent, and the petal shaped Mg (OH) 2 is calcined to obtain an alkaline mesoporous MgO carrier with high specific surface area. By MOCVD (metal organic chemical vapor deposition) method, the two metal organic precursors are supported onto the MgO carrier for hydrogen reduction to obtain the copper base catalyst Cu / MgO used for glucose hydrogenolysis reaction. The glucose hydrogenolysis catalysis Cu / MgO catalyst has the advantages of simple operation process, mild reaction condition, good catalyst activity and stability, and good prospects of industrial application.

The invention discloses an electrolyte composition and a method for manufacturing dental implants, wherein the electrolyte composition comprises calcium acetate monohydrate, calcium glycerophosphate, sodium metasilicate nonahydrate, distilled water and a metal compound to form an electrolyte solution The metal compound is one of magnesium acetate tetrahydrate, zinc acetate, strontium acetate and manganese acetate; the present invention is thicker and denser than the previous metal oxide film, and contains biologically active substances of metal ions and silicon ions. , rapidly increase the biocompatibility, thereby improving the initial fixation force of dental implants to shorten the treatment period.

The present invention provides a method for preparing hydrogen-storing magnesium-nickel alloy nanopowder based on a polyol method and a method thereof, comprising: step 1: dissolving magnesium acetate tetrahydrate and nickel acetate tetrahydrate in ethylene glycol to obtain solution I; step 2: dissolving Dissolve polyvinylpyrrolidone in ethylene glycol to obtain solution II; step 3: mix solution I and solution II and reflux after magnetic stirring; step 4: add 2 ethylene glycol solution, when the temperature of the solution reaches 180°C, it is refluxed, washed, and dried to finally generate magnesium-nickel alloy nanopowder. In this application, the polyol method is used to prepare nano-magnesium-nickel alloy powder, which has less energy consumption, low cost, and is suitable for mass production; the process is relatively simple, and the preparation can be controlled by changing the reaction temperature, reaction time, protective agent dosage and concentration. The particle size of the alloy powder.

The invention discloses a passive refrigeration crystal, a passive refrigeration coating as well as a preparation method and application thereof, the expression formula of the crystal is CayMg11-y(HPO3)8(OH)6-xFx (1<=x<=6, and 0.3<=y<=1), the UV-visible near-infrared band reflectance is greater than 0.95, the emissivity at atmospheric window is greater than 0. 90, and a certain emission selectivity is shown in a long-wave range. Based on magnesium acetate tetrahydrate, calcium acetate monohydrate, sodium fluoride and phosphorous acid as raw materials, the passive refrigeration crystal is prepared by a hydrothermal method by adding cyclohexylamine. The passive refrigeration coating is prepared by utilizing the passive refrigeration crystal, the surface temperature is 5 DEG C lower than theenvironment temperature at the moment of high noon with direct solar radiation, the surface temperature of the wall surface of a building can be effectively reduced, and the reduced amplitude can be by more than 7 DEG C. The crystal material can alleviate the urban heat island effect to a certain extent.

The invention discloses a synthesis method of a basic magnesium carbonate ultrathin nanosheet. The synthesis method comprises the following steps of: adding magnesium acetate tetrahydrate, ammonium carbonate, polyvinylpyrrolidone and sodium hydroxide into an aqueous solution, then adding absolute ethyl alcohol into the solution, transferring the solution into a reaction kettle, performing ultrasonic dissolving, heating and reacting for a period of time in a drying oven, centrifugally separating and collecting a product, and washing the product for multiple times to obtain the basic magnesium carbonate ultrathin nanosheet. According to the invention, the basic magnesium carbonate ultrathin nanosheet with uniform morphology is synthesized through one-step simple hydrothermal reaction, and the thickness of the basic magnesium carbonate ultrathin nanosheet can be regulated and controlled by regulating and controlling the amount of sodium hydroxide.

A pollution-free manufacturing method for surface electric heating elements is characterized in that a formula of a surface modification solution comprises, by weight, 100g of stannous fluoroboric acid, 1-1.2g of antimony trifluoride, 0.2-0.4g of cupric acetate monohydrate, 0.2-0.4g of magnesium acetate tetrahydrate, a proper amount of hydrofluoric acid and a proper amount of acetic acid, and 100-500ml of distilled water. The pollution-free manufacturing method for the surface electric heating elements comprises the steps of (1) preparing the surface modification solution, wherein the distilled water is acidized through the acetic acid, the stannous fluoroboric acid, the cupric acetate monohydrate and the magnesium acetate tetrahydrate are weighed, stirred and melted in the acidized distilled water respectively, antimony trifluoride is quickly weighed, stirred and added in the acidized distilled water, the mixture is stirred, and all the solutions are mixed evenly, sealed and stored at a shady, cool and ventilating place for use; (2) cleaning base materials; (3) feeding the base materials into a surface modification furnace which is 550-650 DEG C to carry out surface modification on the base materials; (4) brushing silver paste at proper positions of radiant faces, and carrying out mechanical wire leading; (5) powering on to carry out aging by using voltages 1.25 times using voltages. The pollution-free manufacturing method for the surface electric heating elements is suitable for manufacturing the pollution-free surface electric heating elements.

The invention provides a stable uric acid detection kit. The stable uric acid detection kit is composed of a reagent R1 and a reagent R2, wherein the reagent R1 contains buffer solution, ethylenediamine tetraacetic acid disodium salt, magnesium acetate tetrahydrate, saccharose, an anti-interference agent, chromogen, a stabilizing agent and a preservative; the reagent R2 contains buffer solution, ethylenediamine tetraacetic acid disodium salt, 4-amino-antipyrine, peroxidase, uricase, a stabilizing agent and a preservative. The stable uric acid detection kit is used for measuring the content of blood uric acid by a colorimetric method that uricase is utilized to reduce uric acid; the method has strong specificity, has sensitivity higher than that of the chemical method, can be used for a full-automatic biochemical analyzer and can be applied clinically; and the anti-interference agent is added in the kit, the interference of ascorbic acid in the serum can be effectively removed, and the result is accurate.

The invention discloses magnesium acetate tetrahydrate, a process for preparing the same and application of the magnesium acetate tetrahydrate. The process includes steps of synthesis, reaction, pressure filtration, concentration, re-concentration, crystallization, centrifugal discharging, drying and packaging. The magnesium acetate tetrahydrate, the process and the application have the advantages that concentration is divided into two portions, accordingly, energy can be saved, the process is high in efficiency and is simple, procedures are easy to control, raw materials for the magnesium acetate tetrahydrate are low in cost and are easily available, and the magnesium acetate tetrahydrate is low in production cost; the magnesium acetate tetrahydrate prepared by the aid of the process is a white crystal in appearance and is stable in quality; a molecular formula of the magnesium acetate tetrahydrate is C4H14O8Mg, the molecular weight of the magnesium acetate tetrahydrate is 214.46, the density of the magnesium acetate tetrahydrate is 0.8 g / l, and the melting point of the magnesium acetate tetrahydrate is 72-80 DEG C; the content of the magnesium acetate tetrahydrate is higher than 98%, the content of chlorine is 320-350 ppm, and a pH (potential of hydrogen) value of the magnesium acetate tetrahydrate is stable and keeps ranging from 7 to 9; the magnesium acetate tetrahydrate can be used for feed additives, cosmetics, catalysts and organic synthesis intermediates, can be applied to preparing magnesium uranyl acetate for measuring sodium and can be applied to the aspects of deodorization, sterilization, preservatives, textile dyeing, eosin staining, nigrosine immobilizing and the like.

The invention discloses a synthesis method of controllable-length / width basic magnesium carbonate nanorods. The synthesis method comprises the following steps: dissolving magnesium acetate tetrahydrate and ammonium carbonate in a deionized water-anhydrous ethanol mixed solution, adding cetyl trimethyl ammonium chloride and sodium hydroxide into the solution, stirring uniformly, transferring the mixed solution into a reaction kettle, and heating to the required temperature to react for the required time; and collecting the product by centrifugal separation, and washing the product with distilled water and industrial alcohol several times. The simple one-step hydrothermal method is utilized to synthesize the one-dimensional basic magnesium carbonate nanorods with uniform size. The reactant ratio is regulated to implement control on slender-rod basic magnesium carbonate to stubby-rod basic magnesium carbonate.

A method for synthesizing basic magnesium carbonate ultra-thin nanosheets, comprising: adding magnesium acetate tetrahydrate, ammonium carbonate, polyvinylpyrrolidone, and sodium hydroxide to an aqueous solution, then adding absolute ethanol to the above solution, and dissolving the above solution Transfer to a reaction kettle, ultrasonically dissolve, heat and react in an oven for a period of time, collect the product by centrifugation, and wash several times to obtain ultrathin nanosheets of basic magnesium carbonate. The invention synthesizes basic magnesium carbonate ultra-thin nano-sheets with uniform appearance through one-step simple hydrothermal reaction, and can realize regulation and control of the thickness of basic magnesium carbonate ultra-thin nano-sheets by adjusting the amount of sodium hydroxide.