114 results about "Potassium hydrogen phthalate" patented technology

The invention discloses sulfur-free ring stabilizing agent propellant powder which consists of the following components in parts by weight: 70 parts of an oxidant, 34 parts of a burnable agent, 6 parts of an adhesive, 2 parts of a stabilizing agent, 2 parts of an anti-aging agent, 1 part of a catalyst and 2 parts of an antismoke agent which are uniformly mixed according to a general method, wherein the oxidant is a mixture consisting of potassium perchlorate, amine perchlorate and barium nitrate; the burnable agent is a mixture consisting of potassium hydrogen terephthalate, potassium acid phthalate, nitrocellulose, purified terephthalic acid and hemp stem carbon powder; the stabilizing agent adopts calcium stearate; the anti-aging agent adopts calcium phthalate; the catalyst adopts copper oxide; the antismoke agent adopts aluminum hydroxide; the adhesive is selected from one or a mixture of multiple of phenolic resin, strong adhesive powder, glutinous rice flour and polyvinyl alcohol according to any ratio. The sulfur-free ring stabilizing agent propellant powder is high in power capability and excellent in safety performance indexes and has excellent storage stability, and the environment-friendly performance is greatly improved.

The present invention discloses explosive black powder that is used for fireworks. The black powder contains the following components with the following weight portions: 40 to 75 portions of potassium perchlorate, 0 to 35 portions of potassium nitrate, 1 to 5 portions of potassium dichromate, 5 to 15 portions of sulfur, 5 to 25 portions of charcoal, 0.5 to 2 portions of carbon black, and 5 to 20 portions of potassium terephthalic acid or potassium acid phthalate. The explosive black powder is made of the components according to the ratio. No metal material or toxic substances are used. The explosive black powder has the advantages of low mechanical sensitivity, excellent stability, large explosive scale, excellent explosive sound, black medicine, easily prepared raw materials and relatively low cost. Thus the explosive black powder is the ideal explosive black powder.

The invention discloses an automatic three-spot calibration and temperature compensation method for a pH measurer. The method comprises the following steps of: preparing a composite glass electrode as a measuring electrode, using 0.05mol/L potassium hydrogen phthalate solution with the pH1 of 4.01 and the solution of 0.025mol/L monopotassium phosphate and 0.025mol/L disodium hydrogen phosphate with the pH2 of 9.18 to calibrate two spots, calculating a coefficient K by using a nemst equation, and calculating a constant E0 by using the solution of 0.025mol/L monopotassium phosphate and 0.025mol/L disodium hydrogen phosphate with the pH3 of 6.86; and saving the pH1, the pH2 and the pH3 of three types of standard buffer solution, corresponding electrodynamic force E1,E2 and E3, K and E0 in a storage module, reading the K and the E0 during measurement each time, and measuring a temperature value T', and calculating the pH value of the solution by using a formula. The method has the advantages that: the electrodynamic force E0 is eliminated, different pH measuring electrodes can be adapted, and the functions of automatically compensating the temperature in real time and the like are achieved.

Formula of the restoring agent includes following materials and mass percent: potassium sulfate 3-9%; sodium sulfate 4-8%; potassium bicarbonate 0.5-2%; potassium carbonate 1-3%; sodium silicate 0.2-0.8%; potassium acid phthalate 0.015-0.06%; aluminum powder 0.005-0.02 etc and deionized water as surplus. Using quite active metallic ions in the restoring agent to replace quite inert lead ions in crystal of lead sulfate, the method ionizes and hydrolyzes lead sulfate to the sulfate ions and lead ions, which take part in normal electrochemical reaction of lead acid battery again. At the same time, matter in the restoring agent together with quite active metallic ions, which accomplishes replacement, forms stable salt so as to reduce self-discharge inside battery caused by harmful metal ions to retain capacity for long time. The invention restores capacity of accumulator effectively, and lightens environmental pollution from old accumulators.

The invention discloses a fireworks and crackers blasting-agent composition. Agents in the fireworks and crackers blasting-agent composition include, by weight, 40%-60% of potassium perchlorate, 15%-30% of potassium acid phthalate, 10%-20% of a metal-filled multi-walled carbon nanotube, 5%-10% of metal oxide and 3%-5% of black powder, the multi-walled carbon nanotube is filled with one or more combinations of metals of aluminum, silver, iron, nickel, potassium, magnesium, lithium, sodium and the like, and the metal oxide is one or more combinations of ferroferric oxide, iron sesquioxide, copper oxide, manganese oxide, zinc oxide, cobalt oxide and aluminum oxide. The fireworks and crackers blasting composition agents free from metal powder are obviously improved in security coefficient, the explosion dynamics of the agents is high, burning rate of bright points is high, shelf life is long and blasting effect is good.

The invention relates to a preparation method of solid carbon dot fluorescent powder with high quantum yield. The preparation method comprises the following steps: weighing raw materials according tothe following constituents in parts by weight: 0.25 to 1 part of potassium hydrogen phthalate, 0.5 part of sodium azide and 0.25 to 1 part of boric acid; mixing the raw materials, then dissolving themixture in a formaldehyde solution ultrasonically, putting the mixed solution in a microwave oven for heating at the power of 225 to 750 W for 4 to 10 min, and completely evaporating the liquid at theend of reaction to obtain white powder which is nitrogen and boron-doped carbon dots (NBCDs). The preparation method is low in cost, high in preparation speed and easy to operate; the quantum yield (QY) of the prepared solid luminous NBCSs is extremely high, and the absolute solid luminous QY of the NBCSs is 67.7 percent.

The invention discloses a sulfur-free environment-friendly gun propellant which comprises the following components in parts by weight: 65 parts of potassium acid phthalate, 15 parts of hemp stem carbon powder, 10 parts of an epoxy resin, 2 parts of graphite powder and 5 parts of lime. The gun propellant manufactured according to the formula is applied to display shells, potted flowers, colored bead barrels, display shell rocket propulsion powder and the like. The sulfur-free environment-friendly gun propellant is excellent in safety performance indexes, the friction sensitivity and percussion sensitivity degree are zero, and the potential safety hazards are eliminated; according to the formula, the sulfur component is completely eliminated, so that pollution of sulfur dioxide and sulfides on the environment is eliminated during firework display; and moreover, the gun propellant does not contain forbidden materials; and the environmental protective performance is greatly improved.

The invention relates to a method for preparing an emulsion explosive by high-temperature sensitization. The method comprises the following steps: preparing a water phase, preparing an oil phase, emulsifying, sensitizing, charging and cooling. The emulsion explosive comprises the following raw materials: ammonium nitrate, sodium nitrate, urea, water, a composite oil phase, an emulsifier, a foamer and an accelerant, wherein the accelerant is a potassium biphthalate buffer solution with the pH value of 5.5, a potassium dihydrogen phosphate buffer solution with the pH value of 4.5, a potassium tartrate buffer solution with the pH value of 3.5 or a potassium tetroxalate buffer solution with the pH value of 1.0; the sensitizing process comprises the following sub-steps: uniformly mixing the accelerant with the foamer to obtain a mixture, adding the mixture into a latex matrix with the temperature of 85-110 DEG C, uniformly mixing, and sensitizing for 0.5-10 minutes. According to the method, the raw material-accelerant is wide in source, low in cost and nontoxic, and the pH value of the explosive is increased, and the explosive performance can be improved; the sensitizing process is simple, quick and free of aftereffect, the production process is simplified, the cost is reduced, and the energy consumption is reduced.

The invention provides sulfur-free propellant. The sulfur-free propellant is prepared from 35wt%-52 wt% of potassium perchlorate, 5 wt%-15 wt% of a filling agent, 8 wt%-20 wt% of a bonding agent, 5 wt%-18 wt% of calcium stearate and 10 wt%-30 wt% of potassium acid phthalate by taking the total weight of the sulfur-free propellant as a standard. The sulfur-free propellant is low in friction sensitivity, impact sensitivity and moisture absorption capacity and high in thrust, and meanwhile pollution to the environment is reduced.

The invention discloses a preparation method of a multifunctional reinforced concrete corrosion inhibitor and relates to a reinforced concrete corrosion inhibitor. The preparation method comprises the steps that 1, layered double hydroxide is used as a precursor to perform calcination; 2, a calcination product obtained through the step 1 is arranged in a sodium hydroxide solution, and stirring, filtration and washing are performed to obtain a filtration product 1; 3, the filtration product 1 is arranged in a potassium hydrogen phthalate solution, and stirring, filtration and washing are performed to obtain a filtration product 2; 4, the filtration product 2 is dried and then is grinded into powder, namely the multifunctional reinforced concrete corrosion inhibitor is obtained. A modification and calcination reforming method is utilized to load various corrosion inhibitor ions in a layered structure of the double hydroxide so as to obtain the multifunctional reinforced concrete corrosion inhibitor, the multifunctional reinforced concrete corrosion inhibitor is used in a concrete structure, can simultaneously reduce the chloride ion concentration in concrete, release the corrosion inhibitor ions, keep the high pH value of the concrete and improve the concrete compactness, has excellent comprehensive anti-corrosion performance for the reinforced concrete structure and can provide multiple effective protection for steel bars embedded in the concrete.

The invention relates to a preparation method of lubricant base oil. The method comprises the following steps: taking the following raw material for standby use: rapeseed methyl ester, preparing the following raw materials in a laboratory: alcohol, hydrogen peroxide (with the mass fraction being 50 percent), formic acid (with the mass fraction being 98 percent), acetone, hydrochloric acid, sodiumhydroxide, potassium hydroxide and potassium acid phthalate. The lubricant base oil prepared through the method is high in viscosity of alcohol etherification modified epoxy methyl products, high in flashing point and good in oxidation stability, and has good anti-friction property.

The invention discloses a preparation method of humic acid, and aims to solve the problems of high energy consumption, low extraction rate, and loss of a part of biological activity in the traditional method. The method comprises the following steps: A, preparing an extractant, namely a mixture of sodium carbonate, sodium hydroxide and sodium tripolyphosphate; B, adding a co-extraction solvent, wherein the co-extraction agent is a mixture of potassium hydrogen phthalate, ethanol and glycerol; C, adding raw materials, namely slowly adding leonardite raw materials under agitation; D, separating, namely carrying out gravitational settling on a humic acid liquor in a settling pond for 30-40 minutes to carry out solid-liquid separation; E, aging, namely aging the separated humic acid liquor into the tank to age for 10-12 hours, so as to adjust the pH to 5.8-7. The preparation method has the advantages that 1, the energy sources are saved, the efficiency is improved, the extraction time is shortened to 1-1.5 hours, and only 8.6kg of standard coal and 0.74kw.h of power are required in production of each ton of humic acid liquor according with the standard in actual running; 2, no three wastes are discharged in production.

The invention provides a method for measuring KHP (potassium hydrogen phthalate) content of water by ultraviolet-visible spectrophotometry. An ultraviolet-visible photometer with dual light sources of ultraviolet light and green light is used for measuring mixed solution of KHP standard solution and turbidity standard solution, the central wavelength of the ultraviolet light is 255 nanometers, the central wavelength of the green light is 532 nanometers, the total absorbance of the ultraviolet light is equal to the sum of absorbance contribution of turbidity solution and KHP for the ultraviolet light, and the green light source functions in turbidity compensation. Two Si photoelectric detectors are used for detecting emergent light passing the solution, light signals are transformed into electric signals, and a narrow-band filter and an autocorrelation detection method are used to obtain the absorbance of sample solution for the ultraviolet light and the green light. Turbidity compensation is performed by an ultraviolet light absorbance-turbidity standard regression line equation and a green light absorbance-turbidity standard regression line equation to calculate the absorbance of KHP solution for the ultraviolet light, and the accurate content of KHP in the solution is calculated by an ultraviolet light absorbance-KHP concentration standard curve.

The invention relates to an acidic surfactant fracture liquid system. The system comprises 2.0-5.0wt% of cetyltrimethylammonium bromide, 0.5-2.5wt% of potassium biphthalate, 10-20wt% of hydrochloric acid, 0.1-1.5wt% of hydrofluoric acid, and the balance water. The fracture liquid system is suitable for 40-60DEG C reservoir stratums, can be used for acidifying unblocking and sand addition fracturing, and is diluted and broken by stratum water or an organic fluid after the fracturing construction.

The invention relates to a preparation method of a nickel-doped zinc oxide material for detecting hydrogen. The preparation method comprises the following steps of adding zinc nitrate, nickel nitrate, potassium hydrogen phthalate and sodium hydroxide into a proper amount of water to be stirred and dissolved; heating the mixed solution to a reflux temperature; after reflux reaction is carried out for 6-8 h, cooling the mixed solution to the room temperature, and obtaining a solid through centrifugal sedimentation; after the solid is washed 2-3 times with distilled water, placing the solid into a vacuum drying oven at the temperature of 50-70 DEG C to be dried for 12-16 h, and then, obtaining nanometer short-bar-shaped nickel-doped zinc oxide. The molar ratio of the zinc nitrate to the nickel nitrate to the potassium hydrogen phthalate to the sodium hydroxide is 1:1:0.5:2. The usage amount of the water is 10-20 times the mass sum of the zinc nitrate, the nickel nitrate, the potassium hydrogen phthalate and the sodium hydroxide.

The invention provides propellant powder and a preparation method. The propellant powder comprises 30-50 parts of potassium permanganate, 8-20 parts of a binding agent, 10-20 parts of potassium hydrogen phthalate and 20-40 parts of a combustible agent, wherein the combustible agent is a mixture of nitrocotton and charcoal powder. The propellant powder has low friction sensitivity and impact sensitivity, low moisture absorption rate and strong thrust and meanwhile reduces the environmental pollution.

The invention discloses a finishing agent for restoring the pH value of fabrics, which comprises the following raw materials in percentage by weight: 0.5-12 percent of potassium hydrogen phthalate, 2-30 percent of potassium chloride, 0.5-8 percent of surfactant and the balance of water. By using the finishing agent, the fabrics with the pH value exceeding 7.5 can be restored to have the pH value in range of 4.0-7.5 through simple padding and drying without influencing other qualities of the fabrics, thereby the requirements on the safety technical specification and export can be met. The invention also discloses a preparation method and application of the finishing agent, and has the advantages of simple operation and suitability for industrial production.

The invention discloses a microemulsion type high-temperature-resistant blockage remover for a sulfur-containing gas well, and a preparation method thereof. The blockage remover can resist high temperature of 150 DEG C, and comprises the following raw materials in parts by weight: 30 to 50 parts of trichloro ethylene/solvent oil, 30 to 50 parts of hydrochloric acid, 5 to 10 parts of hexadecyl trimethyl ammonium chloride, 0.2 to 0.4 part of n-octyl alcohol, 3 to 5 parts of a mutual solvent, 5 to 8 parts of a sulfur dissolving agent, 0.1 to 0.3 part of potassium hydrogen phthalate, 0.1 to 0.3 part of potassium hydrogen phthalate microcapsules, 0.3 to 0.5 part of ninol, 0.5 to 1.0 part of ammonium bifluoride, 0.2 to 0.3 part of ammonium persulfate and 5 to 10 parts of clear water. The microemulsion type high-temperature-resistant blockage remover for the sulfur-containing gas well has the characteristics of high temperature resistance, high heat stability, sulfur dissolving property, rapid dissolving speed of a sulfur-containing composite blocking substance and the like, can be widely applied to blockage construction of the high-temperature sulfur-containing gas well, and has a wide application prospect.

The invention discloses a safe firework drug, which is composed of A, B and C chemical material, wherein the component A is 55-65% potassium perchlorate, 25-30% potassium hydrogen-phthalate, 0.5-5% potassium permanganate, 8-10% cement, which displays red; the component B contains 60-70% potassium perchlorate, 3-5% copper oxide, 3-5% barium nitrate, 6-10% polychloroethylene, 15-25% sulfur and 3 -6% cement, which displays blue; the component C concludes 65-75% potassium perchlorate, 4-10% ferric powder, 3-4% basic copper carbonate, 5-15% phenol resin, 6-10% polychloroethylene, 3-5% barium nitrate and 4-6% cement, which displays green.

The invention relates to a preparation method of a silicone rubber composite material with fluorescence. The preparation method comprises the following steps: preparing mesoporous silicon dioxide SBA-15 by taking a polyoxyethylene-polyoxypropylene-polyoxyethylene block copolymer as a template and tetraethyl orthosilicate as a raw material; preparing a rare earth complex Eu(Pht)3Phen by taking europium oxide (Eu2O3), potassium hydrogen phthalate (KHPht) and 1,10-phenanthroline (Phen) as raw materials; mixing the rare earth complex Eu(Pht)3Phen with the mesoporous silicon dioxide SBA-15, stirring, performing ultrasonic dispersion, volatilizing the solvents, and performing vacuum drying to obtain the mixed powder Eu(Pht)3Phen/SBA-15; and blending the mixed powder Eu(Pht)3Phen/SBA-15 with silicone rubber by a two roll mill, and performing hot pressing and vulcanization to obtain the silicone rubber composite material with fluorescence. The silicone rubber composite material prepared by the invention shows characteristic fluorescence emission peaks of rare earth europium, and has the advantages of high fluorescence intensity, long fluorescence lifetime and the like.

A cold and high temperature resistant PVC cable material is prepared from, by weight, 52-65 parts of polyvinyl chloride, 12-18 parts of high-density polypropylene, 3-6 parts of potassium sulphate, 3-6 parts of trioctyl trimellitate, 3-6 parts of calcium stearate, 7.5-13.5 parts of wheat germ oil, 7.5-13.5 parts of castor oil, 21-27.5 parts of calcium carbonate, 2-3 parts of bisphenol A, 10-22 parts of calcium hydroxide, 10-22 parts of potassium acid phthalate, 4-8 parts of p-phenylenediamine and 15-22 parts of modified filler. PVC serves as the main material of the cable material and is matched with other auxiliary materials and filler to make the cable material high in stability, the expansion rate of the cable material is almost zero at high temperature and low temperature, the insulating property of the cable material does not change at all at high temperature and low temperature, the thermo capacity of the cable material is high, melting flow does not occur even at a temperature as high as 150 DEG C, electrical safety can be well guaranteed, and the cable material does not become stiff and embrittled and is high in tenacity even at a temperature as low as -48 DEG C.

The invention relates to the technical field of detection of in vitro diagnostic reagents, and particularly relates to a total bile acid detection kit. The total bile acid detection kit comprises a reagent R1 and a reagent R2, wherein the reagent R1 is prepared from a buffer solution, a surfactant, a preservative, an isoosmotic adjusting agent and a Thio-NAD; the reagent A2 is prepared from the buffer solution, the surfactant, a stabilizing agent, the preservative, reduced coenzyme I and 3 alpha-hydroxysteroid dehydrogenase; the buffer solution in the reagent R1 is a glycine buffer solution, acitric acid-sodium citrate buffer solution, a potassium hydrogen phthalate-sodium hydroxide buffer solution, a PBS (Phosphate Buffered Saline) buffer solution and the like; the isoosmotic adjusting agent in the reagent R1 is one or more of NaCl, KC1 and MgCl2; the stabilizing agent in the reagent R2 is TEA, BSA, TCEP, glutathione, mannitol and the like. When the total bile acid of a special sample is tested by utilizing the kit disclosed by the invention, a reaction curve can be improved, and the kit can be placed for a long time, so that the stability is good.