Dimethylsulfoxide as mimetic of organophosphorus compounds

FIELD: organic chemistry, mimetic of toxic agents, in particular organophosphorus gases.

SUBSTANCE: invention relates to application of dimethylsulfoxide CH₃S(O)CH₃ (I) as mimetic of organophosphorus gases for training using optical infrared remote devices for chemical prospecting and checking availability thereof. claimed invention is useful in army personnel sustaining training using dimethylsulfoxide which simulates in vapor state organophosphorus gas spectral characteristics in the middle IR-range.

EFFECT: compound, simulating organophosphorus gas spectral characteristics, useful in army personnel sustaining training.

1 tbl

The invention relates to the field of development of simulators of toxic substances (S), in particular organophosphorus agents (FAUVE), namely the use of dimethyl sulfoxide (DMSO) CH₃S(O)CH₃(I) as the simulator FAUVE training on optical infrared remote tools chemical reconnaissance and verification of their performance.

Means of simulation of chemical contamination are used for training the troops to action in terms of chemical contamination and practical skills with instruments chemical reconnaissance. The criterion for the correct use of the devices, chemical intelligence is triggered in the presence simulator, which simulates the properties of S that cause a display effect. When checking instrument performance chemical reconnaissance can also be used simulators RC. The criterion for assessing the efficiency of the device chemical reconnaissance in this case, it is also triggered in the presence of the simulator.

In the literature there is information about using dimethylmethylphosphonate (DMMP) and sulphur hexafluoride (SF₆as imitators FAUVE in the development and testing of lidar systems for remote detection of chemical contamination [1. Aierken; DFL; Vasilyev; Vagotomy. Modern principles of the organisation and the instrumental equipment of the bodies chemical reconnaissance and chemical control (review). // Civil defense abroad. - 1991. No. 5-6, S. 39-44]. However, these compounds are used to simulate the optical characteristics of the FAUVE type G only in a narrow spectral range of 9.2-10.8 microns (1087-980 cm^-1)corresponding to the working spectral range of the active lidar systems based on CO₂-lasers. The above connection is not fully mimic the optical properties of the samples were acquired in the evaluation of the analytical characteristics of passive remote means of chemical reconnaissance and control, operating in a wider spectral range 8,0-14,0 μm (1250-714 cm^-1)corresponding to the window of transparency of the atmosphere in the mid-wave infrared spectrum of electromagnetic radiation. At the same time, the above simulators FAUVE not suitable for use when training troops work on optical remote infrared devices chemical reconnaissance and checking their health, because they are toxic and not readily available compounds.

Thus, it can be noted that at present there is no simulator FAUVE for training troops work on optical remote infrared devices chemical reconnaissance and test their functionality.

The aim of the invention is the use of non-toxic, available organic compounds is as simulator FAUVE, allows you to perform tasks for training troops work on optical remote infrared devices chemical reconnaissance and verification of their performance.

This goal is achieved by using compounds that mimic the spectral characteristics of the PROCESS that are in the vapor state, in the middle infrared range, in the field 1250-714 cm^-1corresponding to the window of transparency of the atmosphere. As imitators were investigated organic compounds (trimethylphosphate and dimethylsulfoxide (DMSO)), with close to FAUVE spectral characteristics in the middle infrared range.

The main criterion for selection of the composition of the simulation of the formulation can be considered the most complete coincidence of the spectral bands of the simulator and the simulated PROCESS in the middle infrared range, which provides an indication of the effect and its low toxicity and availability.

Main characteristics of the spectral bands of the investigated formulations in comparison with FAUVE presented in the table.

Table Main characteristics of the spectral bands of the investigated formulations in comparison with FAUVE
Connection	The position of the maximum analytical spectral line, cm-1	The width of analytical spectral line, cm-1	The intensity of the analytical spectral lines in max, Rel. units	Molecular cross section vapours of substances of the infrared radiation, cm2
	1021	20	0,25	3,63·10-24
	1021	16	0,1	4,56·10-24
CH3S(O)CH3< / br> DMSO	1021	40	0,4	4,49·10-25
(CH3O)3RO Trimethylphosphate	1059	23	0,27	3,31·10-25

From the data presented in the table it follows that the total estimated parameters DMSO is closest to FAUVE spectral characteristics (the position of the maximum of the analytical line DMSO and analytical lines of sarin and soman are the same, and the width and intensity of these lines, and the molecular cross section for the interaction of these substances with IR-radiation have values of the same order) and therefore, the most suitable for simulating vapor FAUVE. In addition, DMSO is non-toxic and affordable organic compound, which Shi, the eye is used as a solvent, as well as a component of cosmetic and pharmaceuticals [2. Knunyants I. Chemical encyclopedia, Vol.2, M., 1990, p.64].

Proposed as simulator DMSO can be used for solving the tasks of training the troops work on optical remote infrared chemical reconnaissance vehicles and verify the functionality of these tools.

The use of dimethyl sulfoxide as a simulator of organophosphorus compounds in the training on optical remote infrared chemical reconnaissance vehicles and to test their functionality.