48 results about "TNT - Trinitrotoluene" patented technology

The invention provides a method for quickly determining the trinitrotoluene or RDX in solution. The trinitrotoluene or RDX is dissolved in acetone to get solution of 10Mu g/mL to 1mg/mL; and then, 1uL to 100uL of such solution, i.e. 10ng to 100ug trinitrotoluene or RDX is fetched and dropped onto the sampling paper; finally, after heating, quantitative detection is available by use of ion mobility spectrometry. Apart from quick and effective, the method of quickly determining the trinitrotoluene or RDX in solution has the advantages of accurate quantification and extensive application, and can quantitatively analyze solid samples.

The invention discloses a valuing method of a 2, 4, 6-trinitrotoluene standard substance. The content of a main component 2, 4, 6-trinitrotoluene in the standard substance is determined by using an internal standard substance with metering traceability based on quantitative 1H NMR technology. The method has the characteristics of simplicity, feasibility, low cost, good stability, high precision, strong specificity and the like, and has the broad application prospects in the aspects of standard substance calibration, intermediate check and the like.

The invention discloses a preparation method of a multifunctional nano composite ball, which belongs to the technical field of detection and application of an aromatic nitryl explosive. The prepared spherical multifunctional nano composite ball is uniform in size, is about 150nm in diameter, has both fluorescence and magnetism, has good selectivity to TNT (Trinitrotoluene), and is a novel nano sensor. The preparation method is based on an improvement of a conventional reported preparation method, and is simpler and easier to operate. The multifunctional nano composite ball is good in dispersibility and stability in water phase. According to the change of the fluorescence intensity of the multifunctional nano composite ball before and after the nano composite ball acts on TNT, the qualitative and quantitative detection on TNT is realized, and the sensitivity is high; and based on the magnetism of the multifunctional nano composite ball, the separation and enrichment are rapider and simpler by magnetic separation, and other aromatic nitryl explosives are effectively separated from the composite ball so as to eliminate interference.

The invention provides a single-layer fluorene conjugated polymer based on a polydopamine modified inorganic substrate, a preparation method of the single-layer fluorene conjugated polymer and an application of the single-layer fluorene conjugated polymer to detection of aromatic explosives. Polydopamine with nano thickness is self-assembled on the surface of an inorganic substrate such as a silicon chip, glass or quartz, a large quantity of active functional groups are introduced to the substrate surface, and then the modified substrate surface is modified by an iodophenyl functional group; the substrate is placed into a fluorene polymer preparation solution, and the substrate surface is directly modified by the fluorene polymer. By the aid of stable adhesion of the polydopamine layer on the inorganic substrate and rich active functional groups on the surface, the modification density of the fluorene polymer on the surface of the inorganic substrate is improved remarkably. The single-layer fluorene conjugated polymer film material prepared with the method has good detection sensitivity on 1,3,5-TNT (trinitrotoluene), 2,4-DNT (dinitrotoluene) and 1,3,5-trinitrophenol.

The invention provides a glassware cleaning agent for laboratory detection and a preparation method of the glassware cleaning agent. The glassware cleaning agent comprises raw materials in parts by mass as follows: 32-45 parts of dioctylsodium sulfosuccinate, 6-15 parts of sorbitan monolaurate, 5-15 parts of sodium alkyl benzene sulfonate, 68-82 parts of ethylenebis (nitrilodimethylene) tetraphosphonic acid, 5-12 parts of sodium gluconate, 0.1-0.4 parts of trinitrotoluene, 3-5 parts of soap powder, 1-7 parts of borax, 2-8 parts of sodium hydrogen phosphate, 2-8 parts of tetrahydrofuran, 2-6 parts of hydroxypropyl methyl cellulose ether and 750-850 parts of water. The provided cleaning agent has high pertinence, can effectively remove residual chemical substances such as acid, alkali and the like, is rinsed easily and cannot cause secondary pollution.

The present invention provides devices and articles of manufacture comprising a low-voltage operable, highly sensitive, and selectively responsive polymer for the detection of nitroaromatic compounds, including explosives. Resistive devices were fabricated by simple spin-coating on flexible and transparent substrates as well as silicon substrates, and were stable under ambient temperature and oxygen levels before exposure to the nitroaromatics. After exposure to 2,4,6-trinitrotoluene (TNT), the devices showed increased conductance, even with pg quantities of TNT, accompanied by a confirming color change from colorless to deep red. The relative conductance increase per unit exposure is the highest yet reported for TNT. Aromatic anion salts, on the other hand, did not induce any electronic responses. Methods of making the articles and devices, and their use are also provided.

The invention relates to a glass film which is prepared from the following raw materials in parts by weight: 6-9 parts of silane coupling agent, 3-5 parts of hollow glass microsphere, 4-6 parts of methyl fiber, 1-5 parts of film-forming assistant, 6-10 parts of dichlorotetra-fluoroethane, 4-9 parts of trinitrotoluene, 3-6 parts of antimony trioxide, 5-9 parts of methyl methacrylate, 1-5 parts of nicotinic acid, 4-9 parts of ferric orthophosphate, 2-6 parts of starch, 3-9 parts of dodecyl glucoside, 4-8 parts of glycerol, 5-9 parts of 1,4-cyclohexyl dimethanol and 3-5 parts of sodium peroxide. The glass film has favorable effects of heat insulation property and glass selfbursting prevention, and can enhance the appearance rating of the glass.

The invention provides a preparation method of 2,4,6-toluene triisocyanate, which comprises the steps of 1, under the catalytic action of nitrogen-doped porous carbon supported palladium, taking 2,4,6-trinitrotoluene as a raw material to obtain 2,4,6-triaminotoluene hydrochloride; and 2, taking 2,4,6-triaminotoluene hydrochloride as a raw material, and carrying out phosgenation reaction and reduced pressure distillation to prepare 2,4,6-toluene triisocyanate. The catalyst nitrogen-doped porous carbon loaded palladium adopted by the invention has the characteristics of simple preparation, low palladium loading capacity, efficient catalysis and reusability, and the production cost can be obviously reduced. Each step has the advantages of simple operation, high reaction conversion rate, easyseparation and collection of intermediate and final products, and the like. The preparation method has the advantage of low overall difficulty. Moreover, all intermediate products in the method are high in reaction activity, can be fully reacted, have few by-products, and are more beneficial to realizing high-quality production of 2,4,6-toluene triisocyanate.

The invention provides a method for preparing N, N, N-tripivaloyl-1, 3, 5-benzenetriamine. The method comprises the following steps: step 1, taking 2, 4, 6-trinitrotoluene as a raw material, and reacting the 2, 4, 6-trinitrotoluene with hydrogen and pivaloyl anhydride in sequence to obtain N, N, N-tripivaloyl-2, 4, 6-triaminotoluene; and step 2, carrying out a demethylation reaction on the obtained N, N, N-tripivaloyl-2, 4, 6-triaminotoluene, so as to obtain the N, N, N-tripivaloyl-1, 3, 5-benzenetriamine. In the preparation method, decommissioned 2, 4, 6-trinitrotoluene is adopted, and used reactants or catalysts are common products in the chemical industry, so that the preparation method has the advantages of low cost and simple and easily available raw materials. In addition, the preparation method also has the characteristics of short synthesis steps, simple operation of each step, high yield, fast reaction rate, easy separation and collection of intermediate and final products and the like, and is beneficial to realization of mass production of N, N, N-tripivaloyl-1, 3, 5-benzenetriamine.

The invention relates to a brightener for furniture cleaning. The brighter comprises components in parts by mass as follows: 5-18 parts of alkyl sodium sulfonate, 10-28 parts of trinitrotoluene, 5-25 parts of potassium hydroxide, 10-20 parts of lauryl calcium sulfate, 5-15 parts of diacetin, 10-25 parts of oleic acid, 5-10 parts of 2-butoxy ethanol, 3-15 parts of anhydrous sodium metasilicate and 40-80 parts of deionized water. The brightener for furniture cleaning can remarkably remove oil stain and dust on the furniture, cannot leave a mark simultaneously and is high in scrubbing efficiency, time-saving, labor-saving, applicable to cleaning and brightening of all kinds of furniture and convenient to use.

The invention provides a reagent for rapidly detecting trinitrotoluene, tetront, picric acid, dinitrotoluene and sulfur in explosives. Based on a chemical colorimetric method, the reagent is prepared from an organic probe (E) 2-(3-cyano-4-(4-(dimethylamino) styryl)-5, 5-dimethyl furan-2 (5H)-subunit) malononitrile, a reducing agent sodium borohydride or potassium borohydride and a solvent. And determining whether trinitrotoluene, tetront, picric acid, dinitrotoluene and sulfur exist or not according to different changes of colors after the reaction. The reagent disclosed by the invention can be used for rapidly and qualitatively detecting trinitrotoluene, tetrone, picric acid, dinitrotoluene and sulfur in explosives and residues thereof on site. The method has the characteristics of low cost, simple reaction conditions, easiness in preparation, good reproducibility, high sensitivity and the like.

The invention provides a method for repeatedly detecting 2, 4, 6-trinitrotoluene by using wiping type fluorescent test paper, and the method is used for carrying out fluorescence detection based on the test paper of glutathione modified copper nanoclusters (GSH-CuNC). The prepared fluorescence detection test paper can recover strong orange fluorescence after being soaked in acetonitrile for 1-5 seconds after quenching during wiping detection of 2, 4, 6-trinitrotoluene (TNT), and the fluorescence recovered detection test paper can continuously wipe TNT powder residues on the solid surface to realize rapid detection of repeatable fluorescence quenching. The fluorescence detection test paper can be recycled for multiple times according to the mode, the number of cycles is at least 10 through testing, and the method provided by the invention has the characteristics of simplicity in operation, low price, high visualization degree and the like, and is beneficial to hidden TNT detection in a complex on-site environment. And an effective technical means is provided for the detection of explosive cases of criminal investigation departments of public security systems.

The invention discloses a liquefied petroleum gas cylinder transient fracture combustion explosion simulation system, which comprises: a bracket placed on the ground; the liquefied petroleum gas cylinder that is positioned on the bracket; the trinitrotoluene TNT explosives that are positioned on the two sides of the liquefied petroleum gas cylinder; the thermal radiometer that is located on the ground, is a first set distance away from the explosion center and is used for measuring thermal radiation after the liquefied petroleum gas cylinder is exploded; the shock wave sensor that is located at a second set distance away from the ground, is a third set distance away from the explosion center and is used for collecting air shock waves after the liquefied petroleum gas cylinder is exploded;the concentration meter that is located on the ground, is a fourth set distance away from the explosion center and is used for collecting the gas concentration after the liquefied petroleum gas cylinder is exploded; and the photographic equipment that is positioned on the ground, is far away from the explosion center and is used for filming a burning explosion site. The system provided by the invention is safe, reliable and operable.

The invention belongs to the technical field of microbial remediation, and particularly relates to a trinitrotoluene degradation strain as well as a screening method and application thereof. The invention provides a microbial strain capable of efficiently and rapidly degrading trinitrotoluene, and the microbial strain is applied to degradation of trinitrotoluene. The microbial strain is obtained by screening soil in a trinitrotoluene polluted site, and was preserved in China General Microbiological Culture Collection Center on March 23th, 2021, with the preservation number of CGMCC NO.22050. The strain provides a novel microbial germplasm resource for treating water and soil which are polluted by trinitrotoluene.

The invention discloses a low-toxicity fuel functional agent. The low-toxicity fuel functional agent is prepared from following raw materials, by weight, 3 to 11 parts of xylene, 4 to 11 parts of potassium chloride, 3 to 6 parts of isobutene, 2 to 6 parts of ferrocene, 5 to 7 parts of 2,6-di-tert-butylphenol, 1 to 5 parts of acetone, 1 to 3 parts of ethyl oleate, 5 to 11 parts of trinitrotoluene, 3 to 8 parts of phenylamine, 7 to 10 parts of dimethyl carbonate, 8 to 12 parts of petroleum ether, 6 to 12 parts of zinc peroxide, 2 to 4 parts of methyl tertiary butyl ether, and 25 to 36 parts of ethylene glycol monoethyl ether. Beneficial effects are that: the low-toxicity fuel functional agent is capable of promoting high-molecular material plasticizing, realizing energy high efficiency utilization, and reducing pollution and toxicity, and is colorless and odorless.

The invention discloses a process for treating alkaline wastewater generated in production of polynitrotoluene and a device thereof, and the production process comprises the following steps: evaporating mononitrotoluene alkaline wastewater and trinitrotoluene alkaline wastewater according to a ratio of (0.25-4): 1 under a reduced pressure heating condition, increasing the COD of the wastewater to 200000-240000 mg/L, mixing the wastewater with natural gas under an oxygen-deficient condition, and carrying out low-nitrogen incineration, wherein the incineration flue gas reaches the emission standard after being dedusted. The process is stable in incineration operation, stable and qualified in emission index, free of SNCR, SCR, dangerous chemicals and catalysts, low in operation cost and high in safety degree.