CN102838435B - Full-simulation explosive simulant of iso-propyl nitrate - Google Patents
Full-simulation explosive simulant of iso-propyl nitrate Download PDFInfo
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- CN102838435B CN102838435B CN201210336555.4A CN201210336555A CN102838435B CN 102838435 B CN102838435 B CN 102838435B CN 201210336555 A CN201210336555 A CN 201210336555A CN 102838435 B CN102838435 B CN 102838435B
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- propyl nitrate
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Abstract
The invention relates to a full-simulation explosive simulant of iso-propyl nitrate and belongs to the technical fields of energetic materials and analog simulation. For solving the problem that the dangerousness is very high if iso-propyl nitrate dangerous materials are directly used as reference substances for discrimination by a security check machine, the invention provides a full-simulation explosive simulant which is identical to iso-propyl nitrate in the aspects of appearance, color, physical state, density and chemical element constitution and the like. The full-simulation explosive simulant of iso-propyl nitrate provided by the invention is prepared by the following steps of: weighing formamide and acetic acid in a molar ratio being 1:1, adding acetic acid into formamide at the stirring speed of 500r/min, adjusting the sirring speed to be at 800r/min after the addition of acetic acid is finished, and continuously stirring for 30min, thus obtaining the iso-propyl nitrate simulant. The full-simulation explosive simulant of iso-propyl nitrate provided by the invention can be used for replacing iso-propyl nitrate explosive to perform correction of instruments such as security check machines, thereby avoiding potential safety hazards.
Description
Technical field
The present invention relates to Full-simulation explosive simulant of iso-propyl nitrate, belong to energetic material and imitation technology field.
Background technology
Along with terror upgrading, anti-terrorism strength is constantly strengthened, and trial of strength that is terrified and antiterrorism also will continue for some time.Airport, station, harbour and crowd concentrate the place of comparatively dense and important place to be the objects of terrorist attacks always.Thus various countries strengthen all should carrying out safety inspection to the luggage in various different path and the belongings of personnel.Whether safety check instrument recognition material is before Explosive hazardous material, needs corresponding reference.Under normal circumstances, Explosive hazardous material is in kind unsuitable directly as object of reference, mainly due to phobia at heart to explosive of the insecurity of Explosive hazardous material and people.Especially on airport, station, the safety check place such as harbour, to the periodic check of safety check instrument or demarcate more outstanding.
Isopropyl nitrate is a kind of colourless liquid, and explosive extremely strong and unusual unstable, slightly rubs and very easily blast, in the correction of safety check instrument, adopt true explosive to carry out verifying or demarcating to have high danger.
Using stand-in as the sample judging Explosive hazardous material, Explosive hazardous material can be distinguished from aspect emulation such as outward appearance, color, states of matter, density, chemical element compositions, global security staff and public security system personnel can be helped to a certain extent to reduce verification or demarcation Explosive hazardous material under the constraints such as dangerous instability as far as possible.
Although the stand-in of some liquid explosive have also been prepared by the U.S., Britain and Israel, the aspects such as its outward appearance, form and density are close with true thing, ordination number aspect is also close with true explosive, but elementary composition, the aspect such as element percentage content and color is different from true explosive, what can not reach full emulation should be effective, can only be x ray level emulation, affect the accuracy of safety check instrument recognition material.But up to the present, do not retrieve isopropyl nitrate stand-in and related data thereof.
Summary of the invention
The object of the invention is to solve using isopropyl nitrate hazardous substance in kind directly as the object of reference of safety check instrument identification, there is high danger, and the full analogue simulation thing with isopropyl nitrate with aspects such as identical appearance, color, states of matter, density, chemical element compositions is provided, while guarantee safety check instrument recognition material accuracy, turn avoid and adopt the danger as object of reference in kind.
Mentality of designing of the present invention is: foundation isopropyl nitrate is elementary composition by CHON tetra-kinds, and molecular formula is C
3h
7nO
3, the percentage composition of each element is: C34.28%, H6.72%, O45.67%, N13.33%; Stand-in element percentage composition for preparation is identical, molecular formula is identical with relative molecular mass, first structure is designed, according to the molecular formula of isopropyl nitrate, the present invention adopts smallest common multiple method, the smallest molecule therefrom finding out stable existence in conjunction with method for splitting and factorization is assembled, and make every effort to stand-in at element percentage composition, color appearance, the aspects such as density are consistent with true explosive.
1, elementary composition and characteristic is determined
Consider according to the element formed in isopropyl nitrate molecule and elementary composition percentage composition, take into full account element percentage composition, ordination number, density, the factors such as color appearance, that isopropyl nitrate is carried out split or by isopropyl nitrate molecular formula and elementary composition expansion n (n=1,2,1/2,2/3) doubly, then split compound is elementary composition, select the mixed in theory composition of micromolecular compound, the element percentage composition of its mixture is identical with isopropyl nitrate.
2, simulation composition is solved with ordination number
Calculate the composition of isopropyl nitrate and ordination number according to formula, as calculated, only have elementary composition percentage composition more close, ordination number could coincide, just more accurate with explosive isopropyl nitrate molecule.
Wherein a
i=m
iz
i/ A
i, A
ithe atomic wts of element i, Z
iordination number, m
iit is virtual mass.
3, accurate measurement, premix and assembling stand-in.
It not simple mixing in process for preparation, if solid matter mixes mutually or solid-liquid mixing, then to fusing point by a part of heating materials, it is made to melt rear and other component obtained pre-composite A in advance, again the third material is added after complete dispersing and mixing is even, assemble under high-speed stirring and Elevated Temperature Conditions, some materials are then by dispersion, solve intermiscibility, organic element parcel water molecules (when mainly referring to trace water content) should be obtained as moisture, stand-in are made to have excellent intermiscibility, do not present demixing phenomenon and obtain corresponding explosive simulant.If liquid mixes mutually, direct two kinds of liquid are mutual misciblely to be assembled.
The object of the invention is to be achieved through the following technical solutions:
The formula of Full-simulation explosive simulant of iso-propyl nitrate of the present invention is as follows:
Formula: these stand-in are prepared from according to mol ratio 1: 1 by methane amide, acetic acid.
Wherein, the present invention adopts the concrete preparation process of these these stand-in of formula preparation as follows:
Take methane amide and acetic acid according to the proportionlity of above-mentioned formula, under the stirring velocity of 500r/min, in methane amide, add acetic acid, adjusting stirring velocity after adding is 800r/min, continues to stir 30min, obtains isopropyl nitrate stand-in.
Beneficial effect
The present invention obtain isopropyl nitrate stand-in, not only substantially identical in color, outward appearance, density, and the aspect such as ordination number, elementary composition, element percentage composition all fits like a glove with true explosive, but its molecular structure and true explosive have the different of essence, do not blast.Thus avoid the danger that public place uses true explosive to bring, the correction that explosive carries out the instruments such as safety check instrument can be substituted, decrease some unsafe factors in use procedure, and can reuse, significant to the correction of instrument etc., and can be used for sample of imparting knowledge to students.
Embodiment
Below in conjunction with embodiment, content of the present invention is further described.
Embodiment
First according to the proportionlity in formula, mol ratio is converted into mass ratio, calculates at 1: 1 in molar ratio, take methane amide 45.04g, acetic acid 60.05g.Get the clean Erlenmeyer flask of 300ml, put into magneton in order to stirring, add the methane amide 45.04g of accurate measurement, open and stir, adjustment stirring velocity 500r/min, continues the acetic acid 60.05g adding precise, add complete, adjustment stirring velocity 800r/min, stirs 30min, obtains isopropyl nitrate Fluid simulation thing.Element percentage composition is after measured: C34.12%, H6.65%, O45.96%, N13.27%, error is within ± 2%, its ordination number is equal with isopropyl nitrate as calculated, compared with isopropyl nitrate, ordination number is equal, and color appearance is identical, element percentage composition, within limit of error, is fit to isopropyl nitrate.
The element percentage composition of the isopropyl nitrate stand-in in embodiment and density and isopropyl nitrate authentic sample Data Comparison as shown in the table:
Claims (1)
1. Full-simulation explosive simulant of iso-propyl nitrate, it is characterized in that the concrete preparation process of these stand-in is as follows: take methane amide and acetic acid according to the proportionlity of mol ratio 1: 1, under the stirring velocity of 500r/min, acetic acid is added in methane amide, adjusting stirring velocity after adding is 800r/min, continue to stir 30min, obtain isopropyl nitrate stand-in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210336555.4A CN102838435B (en) | 2012-09-12 | 2012-09-12 | Full-simulation explosive simulant of iso-propyl nitrate |
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|---|---|---|---|
| CN201210336555.4A CN102838435B (en) | 2012-09-12 | 2012-09-12 | Full-simulation explosive simulant of iso-propyl nitrate |
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| CN102838435B true CN102838435B (en) | 2014-12-24 |
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| CN111023917A (en) * | 2019-11-29 | 2020-04-17 | 西安近代化学研究所 | Simulation material for PBX explosive and preparation process thereof |
| CN112255079A (en) * | 2020-09-23 | 2021-01-22 | 西安近代化学研究所 | Inert simulation explosive with hot spot effect, preparation method and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816030A (en) * | 2012-09-11 | 2012-12-12 | 北京理工大学 | N-butyl nitrate full-simulation explosive mimics |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816030A (en) * | 2012-09-11 | 2012-12-12 | 北京理工大学 | N-butyl nitrate full-simulation explosive mimics |
Non-Patent Citations (1)
| Title |
|---|
| 硝酸异丙酯制备工艺研究;奚美珏;《含能材料》;19980630;第6卷(第2期);第70-72页 * |
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