An energetic ionic salt based on 3-hydrazino-5-amino-1h-1,2,4-triazole and a method for its preparation
By preparing 3-hydrazino-5-amino-1H-1,2,4-triazole energetic ion salts, the contradiction between energy and sensitivity of traditional energetic compounds is resolved, a balance between high detonation performance and insensitivity is achieved, and environmental pollution is reduced, making it suitable for industrial production.
Patent Information
- Application Number
- CN202310607891.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2043-05-26
AI Technical Summary
Traditional energetic compounds have a contradiction between energy and sensitivity, making it difficult to achieve a balance between high explosive performance and insensitivity at the same time, and the gases produced by the explosion cause significant environmental pollution.
3-hydrazino-5-amino-1H-1,2,4-triazole energetic ion salts are prepared by subjecting 3,5-diamino-1,2,4-triazole to a diazotization reaction with sodium nitrite under acidic conditions to generate a diazonium salt, which is then reacted with stannous chloride or a metal salt to prepare an inorganic energetic ion salt of perchlorate or nitrate, or reacting with an acidic energetic compound to prepare an organic energetic ion salt.
It achieves a balance between high detonation performance and insensitivity, with a detonation velocity and pressure higher than TNT and a mechanical sensitivity lower than RDX. It has a simple synthesis route, is easy to purify, and is convenient for industrial production.
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Figure CN116693464B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application discloses a 3-hydrazyl-5-amino-1H-1,2,4-triazole energetic ionic salt and a preparation method thereof, and belongs to the technical field of energetic materials. BACKGROUND
[0002] Traditional energetic compounds, such as TNT, RDX, HMX, TATB, PETN, CL-20 and the like, release energy mainly from the rupture of the skeleton ring and the energy release of -NO2, -N3, -ONO2, -NNO2 and the like, and there is an irreconcilable contradiction between the energy characteristics and the sensitivity characteristics, and the higher the energy is, the higher the sensitivity is, and the gas produced by explosion pollutes the environment more seriously. The azole compound as the core structure of the nitrogen-rich material has been widely studied. According to the number of nitrogen atoms in the structure, the azole compound can be divided into pyrazole, imidazole, triazole and tetrazole, and the increase of the nitrogen content is beneficial to increase the detonation performance, but the demand for insensitivity cannot be met, therefore, the balance between high energy and low sensitivity has become the main trend of the development of energetic materials. SUMMARY
[0003] In view of the deficiencies of the prior art, the application discloses a 3-hydrazyl-5-amino-1H-1,2,4-triazole energetic ionic salt and a preparation method thereof, and solves the problem that the energetic material has high detonation performance and the insensitivity demand can be met.
[0004] Specifically, the object of the application can be achieved by the following technical scheme.
[0005] A 3-hydrazyl-5-amino-1H-1,2,4-triazole inorganic energetic ionic salt has the structure as follows:
[0006]
[0007] A is a perchlorate anion or a nitrate anion. -
[0008] The preparation method of the 3-hydrazyl-5-amino-1H-1,2,4-triazole inorganic energetic ionic salt comprises the following steps:
[0009] (1) under an acidic condition, 3,5-diamino-1,2,4-triazole is subjected to a diazotization reaction with sodium nitrite to generate a diazonium salt; stannous chloride is reacted with the diazonium salt to prepare 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride;
[0010]
[0011] wherein, a is 3,5-diamino-1,2,4 triazole, b is diazonium salt, c is 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride;
[0012] (2) reacting the 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride with silver nitrate or silver perchlorate to prepare 3-hydrazyl-5-amino-1H-1,2,4-triazole inorganic energetic ionic salt,
[0013]
[0014] wherein, A - is perchlorate anion or nitrate anion.
[0015] Further, the concentration of hydrochloric acid in the diazotization reaction is 1-20 mol / L.
[0016] Further, the molar ratio of 3,5-diamino-1,2,4 triazole to sodium nitrite is 1:0.5-4.0.
[0017] Further, the reaction temperature in step (1) is -20-20℃.
[0018] Further, the molar ratio of 3,5-diamino-1,2,4 triazole to stannous chloride is 1:0.5-2.0.
[0019] Further, the molar ratio of 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride to silver nitrate or silver perchlorate is 1:0.5-2.0.
[0020] Further, the solvent of the reaction system of step (2) includes a mixture of any one or more of water, methanol and ethanol.
[0021] Further, the reaction temperature in step (2) is -20-100℃.
[0022] A 3-hydrazyl-5-amino-1H-1,2,4-triazole organic energetic ionic salt, the structure of which is:
[0023]
[0024] wherein, A - including any one of 5-nitramino-tetrazole anion, 5-nitro-tetrazole anion, 3-nitro-1,2,4-triazole-5-ketone, mononitrophenol anion, dinitrophenol anion, trinitrophenol anion, mononitroresorcinol anion, dinitroresorcinol anion, trinitroresorcinol anion and trinitro-phloroglucinol anion.
[0025] The preparation method of the 3-hydrazino-5-amino-1H-1,2,4-triazole organic energetic ionic salt comprises the following steps:
[0026] (1) Under acidic conditions, 3,5-diamino-1,2,4-triazole is diazotized with sodium nitrite to generate a diazonium salt; stannous chloride is reacted with the diazonium salt to prepare 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride;
[0027]
[0028] wherein a is 3,5-diamino-1,2,4-triazole, b is a diazonium salt, and c is 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride;
[0029] (2) The 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride is reacted with lithium hydroxide to prepare 3-hydrazino-5-amino-1H-1,2,4-triazole; and the 3-hydrazino-5-amino-1H-1,2,4-triazole is reacted with an acidic energetic compound to prepare a 3-hydrazino-5-amino-1H-1,2,4-triazole organic energetic ionic salt.
[0030]
[0031] wherein acid represents an acidic energetic compound.
[0032] Further, the concentration of hydrochloric acid in the diazotization reaction is 1-20 mol / L.
[0033] Further, the molar ratio of 3,5-diamino-1,2,4-triazole to sodium nitrite is 1:0.5-4.0.
[0034] Further, the reaction temperature in step (1) is -20-20℃.
[0035] Further, the molar ratio of 3,5-diamino-1,2,4-triazole to stannous chloride is 1:0.5-2.0.
[0036] Further, the reaction temperature in step (2) is 10-100℃.
[0037] Further, the molar ratio of 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride to lithium hydroxide is 1:2.
[0038] Further, the solvent of the reaction system in step (2) comprises a mixture of any one or more of water, methanol and ethanol.
[0039] The beneficial effects of the present application are as follows:
[0040] (1) The present application prepares nitrogen-rich energetic ionic salt by double decomposition reaction or acid-base neutralization reaction of 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride with metal salt or acid, which has less required instrument and equipment, simple synthesis route, high yield, and the target energetic ionic salt is easy to purify and has high purity.
[0041] (2) The energetic ionic salt based on 3-hydrazyl-5-amino-1H-1,2,4-triazole is a new type of high-energy density energetic compound, the detonation performance of most of the energetic ionic salts is equivalent to RDX (cyclotrimethylene trinitramine), and the detonation performance of part of the energetic ionic salts is better than RDX, and the mechanical sensitivity is lower than RDX, and the detonation parameters are much higher than TNT (trinitrobenzotrifluoride), which is safe for industrial production and transportation. BRIEF DESCRIPTION OF DRAWINGS
[0042] Figure 1 It is a single crystal graph of 3-hydrazyl-5-amino-1H-1,2,4-triazole hydrochloride in Example 1.
[0043] Figure 2 It is a single crystal graph of 3-hydrazyl-5-amino-1H-1,2,4-triazole nitrate in Example 1.
[0044] Figure 3 It is a single crystal graph of 3-hydrazyl-5-amino-1H-1,2,4-triazole perchlorate in Example 2.
[0045] Figure 4 It is a single crystal graph of 3-hydrazyl-5-amino-1H-1,2,4-triazole 2,4,6-trinitroresorcinol salt in Example 5.
[0046] Figure 5 It is a single crystal graph of 3-hydrazyl-5-amino-1H-1,2,4-triazole 5-nitroamino tetrazolium salt in Example 7. DETAILED DESCRIPTION
[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0048] The preparation route of the energetic ionic salt described in the present application is as follows:
[0049]
[0050] The specific embodiments of the present application are provided below.
[0051] Example 1
[0052] A preparation method of 3-hydrazino-5-amino-1H-1,2,4-triazole energetic ionic salt, comprising the following steps:
[0053] Step 1: weigh 10 g (100.1 mmol) of 3,5-diamino-1,2,4-triazole into a three-necked round-bottom flask, add 200 ml of 10 mol / L hydrochloric acid, stir and dissolve, and cool to 0°C in an ice bath. Weigh 7.5 g (110 mmol) of sodium nitrite, and dissolve it in 25 ml of water. Under stirring conditions, the sodium nitrite solution is added dropwise to the hydrochloric acid solution of 3,5-diamino-1,2,4-triazole within 1.5 h, and a diazotization reaction is carried out. Continue to stir the reaction at 0°C for 1 h. Weigh 22.6 g (100 mmol) of stannous chloride dihydrate, and add it to the reaction liquid within no less than 0.5 h, and a reduction reaction of diazonium salt is carried out. After the addition is completed, continue to stir the reaction for 1-2 h, warm to 80°C, and heat-filter the reaction liquid. Then cool it down, and white solid is precipitated. Further extract it by filtration, and wash it with anhydrous ethanol and anhydrous methanol in sequence. Dry the filter cake to obtain 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride white powder, with a yield of 62%, and the crystal structure diagram is shown in Figure 1 .
[0054] 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride:
[0055] EA theoretical value: C is 12.84%, H is 4.31%, and N is 44.93%; EA experimental value: C is 12.79%, H is 4.38%, and N is 45.01%.
[0056] IR (KBr, cm -1 ):υ=3316, 3096, 2956, 2671, 1922, 1707, 1686, 1643, 1566, 1499, 1324, 1219, 1189, 1113, 989.
[0057] MS (ESI + ): m / z = 115.07 [C2H7N6 + ]; MS (ESI - ): m / z = 35.00 [Cl - ].
[0058] Step 2: 3-Hydrazinyl-5-amino-1H-1,2,4-triazole hydrochloride (0.374 g, 2 mmol) was dissolved in 10 mL of water, then silver nitrate (0.68 g, 4 mmol) aqueous solution was added to it, and stirring was continued at room temperature for 1 h. The reaction solution was filtered to remove AgCl precipitate, and the filtrate was rotary evaporated to dryness to give a white powder solid, yield 81%, crystal structure is shown in Figure 2 .
[0059] 3-Hydrazinyl-5-amino-1H-1,2,4-triazole nitrate:
[0060] EA: C 10.00%, H 3.36%, N 46.66%; EA: C 10.11%, H 3.30%, N 46.73%.
[0061] IR (KBr, cm -1 ):υ=3355, 3203, 1790, 1689, 1641, 1489, 1384, 1213, 1177, 1087, 1052, 836 cm -1 .
[0062] MS (ESI + ): m / z = 115.07 [C2H7N6 + ]; MS (ESI - ): m / z = 61.99 [NO3 - ].
[0063] Example 2
[0064] A preparation method of an energetic ionic salt based on 3-hydrazinyl-5-amino-1H-1,2,4-triazole, comprising the following steps:
[0065] Step 1: same as step 1 in example 1;
[0066] Step 2: 3-Hydrazinyl-5-amino-1H-1,2,4-triazole hydrochloride (0.374 g, 2 mmol) was dissolved in 10 mL of water, then silver nitrate (0.68 g, 4 mmol) aqueous solution was added to it, and stirring was continued at room temperature for 1 h. The reaction solution was filtered to remove AgCl precipitate, and the filtrate was rotary evaporated to dryness to give a white powder solid, yield 81%, crystal structure is shown in Figure 3 .
[0067] 3-Hydrazinyl-5-amino-1H-1,2,4-triazole nitrate:
[0068] EA theoretical value: C 7.21%, H 3.03%, N 25.23%; EA experimental value: C 7.29%, H 2.89%, N 25.31%.
[0069] IR (KBr, cm -1 ):υ=3184, 3095, 2954, 2829, 2670, 1705, 1641, 1530, 1496, 1417, 1216, 1112, 1089, 1058, 989 cm -1 .
[0070] MS (ESI + ): m / z = 115.07 [C2H7N6 + ]; MS (ESI - ): m / z = 98.95 [ClO4 - ].
[0071] Example 3
[0072] A preparation method of an energetic ionic salt based on 3-hydrazino-5-amino-1H-1,2,4-triazole, comprising the following steps:
[0073] Step 1: same as step 1 in example 1;
[0074] Step 2: dissolve 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride (0.374 g, 2 mmol) in 10 mL of water, add LiOH (0.096 g, 4 mmol) in batches at room temperature, stir for 15 min, then raise the temperature to 45°C, add 4 mmol of 2,4,6-trinitrophenol methanol solution (10 mL), stir for 30 min, and then filter, wash with water, and dry the filter cake to obtain a yellow powder solid with a yield of 77%.
[0075] 3-amino-5-hydrazino-1,2,4-triazole 2,4,6-trinitrophenol salt:
[0076] EA theoretical value: C 27.64%, H 2.65%, N 27.63%; EA experimental value: C 27.71%, H 2.30%, N 27.73%.
[0077] IR (KBr, cm -1 ):υ=3363, 3232, 3083, 2748, 1702, 1634, 1563, 1480, 1427, 1328, 1275, 1231, 1164, 1087, 1022, 920 cm -1 .
[0078] MS (ESI+ ) m / z = 114.99 [C2H7N6 + ] MS (ESI - ) m / z = 227.99 [C6H2N3O7 - ].
[0079] Example 4
[0080] A preparation method of an energetic ionic salt based on 3-hydrazinyl-5-amino-1H-1,2,4-triazole, comprising the following steps:
[0081] Step 1: same as step 1 in example 1;
[0082] Step 2: dissolve 3-hydrazinyl-5-amino-1H-1,2,4-triazole hydrochloride (0.374 g, 2 mmol) in 10 mL of water, add LiOH (0.096 g, 4 mmol) in batches at room temperature, stir for 15 min, then raise the temperature to 45°C, add 4 mmol of 2,4,6-trinitroresorcinol in methanol solution (10 mL), stir for 30 min, and then filter, wash with water, and dry the filter cake to obtain a yellow powder solid with a yield of 72%.
[0083] 3-hydrazinyl-5-amino-1H-1,2,4-triazole 2,4,6-trinitroresorcinol salt:
[0084] EA theoretical value: C 27.82%, H 2.00%, N 27.81%; EA experimental value: C 27.74%, H 2.06%, N 27.90%.
[0085] IR (KBr, cm -1 ) υ = 3421, 3226, 2919, 1693, 1642, 1517, 1479, 1414, 1336, 1241, 1103, 1047, 1009, 896 cm -1 .
[0086] MS (ESI + ) m / z = 114.99 [C2H7N6 + ] MS (ESI - ) m / z = 243.89 [C6H2N3O8 - ].
[0087] Example 5
[0088] A preparation method of an energetic ionic salt based on 3-hydrazinyl-5-amino-1H-1,2,4-triazole, comprising the following steps:
[0089] Step 1: same as step 1 in example 1;
[0090] Step 2: 3-hydrazinyl-5-amino-1H-1,2,4-triazole hydrochloride (0.374 g, 2 mmol) was dissolved in 10 mL water, LiOH (0.096 g, 4 mmol) was added in batches at room temperature, after stirring for 15 min, the temperature was raised to 45 °C, 4 mmol of 2,4,6-trinitrophenol methanol solution (10 mL) was added, and stirred for 30 min, yellow precipitate was separated out, then filtered, washed with water, and dried the filter cake to obtain yellow powder solid, yield 71%, crystal structure see Figure 4 .
[0091] 3-hydrazinyl-5-amino-1H-1,2,4-triazole 2,4,6-trinitrophenol salt:
[0092] EA theoretical value: C is 25.61%, H is 2.42%, N is 33.60%; EA experimental value: C is 25.51%, H is 2.33%, N is 33.67%.
[0093] IR (KBr, cm -1 ):υ=3408, 3276, 3173, 2916, 1706, 1648, 1551, 1453, 1296, 1203, 1048, 1109, 903 cm -1 .
[0094] MS (ESI + ): m / z = 114.99 [C2H7N6 + ]; MS (ESI - ): m / z = 259.89 [C6H2N3O9 - ].
[0095] Example 6
[0096] A preparation method of an energetic ionic salt based on 3-hydrazinyl-5-amino-1H-1,2,4-triazole, comprising the following steps:
[0097] Step 1: same as step 1 in example 1;
[0098] Step 2: 3-hydrazinyl-5-amino-1H-1, 2, 4-triazole hydrochloride (0.374 g, 2 mmol) was dissolved in 10 mL water, LiOH (0.096 g, 4 mmol) was added in batches at room temperature, after stirring for 15 min, the temperature was raised to 45 °C, 3-nitro-1, 2, 4-triazol-5-one (0.374 g, 2 mmol) was added in batches, stirred for 30 min, then concentrated by rotary evaporation until just a powder precipitated, then cooled, then filtered, and the filter cake was dried to obtain a white powder solid, with a yield of 78%.
[0099] 3-hydrazinyl-5-amino-1H-1, 2, 4-triazole 3-nitro-1, 2, 4-triazol-5-one salt:
[0100] EA theoretical value: C 19.68%, H 3.30%, N 57.36%; EA experimental value: C 19.63%, H 3.35%, N 57.42%.
[0101] IR (KBr, cm -1 ):υ=3372, 3266, 3032, 2883, 2813, 2661, 1715, 1593, 1545, 1473, 1296, 1218, 1126, 1049, 950 cm -1 . MS (ESI + ): m / z = 114.99 [C2H7N6 + ]; MS (ESI - ): m / z = 128.89 [C2HN4O3 - ].
[0102] Example 7
[0103] A preparation method of an energetic ionic salt based on 3-hydrazinyl-5-amino-1H-1, 2, 4-triazole, comprising the following steps:
[0104] Step 1: same as step 1 in example 1;
[0105] Step 2: 3-hydrazinyl-5-amino-1H-1, 2, 4-triazole hydrochloride (0.374 g, 2 mmol) was dissolved in 10 mL water, LiOH (0.096 g, 4 mmol) was added in batches at room temperature, after stirring for 15 min, the temperature was raised to 45 °C, 3-nitro-1, 2, 4-triazol-5-one (0.374 g, 2 mmol) was added in batches, stirred for 30 min, then concentrated by rotary evaporation until just a powder precipitated, then cooled, then filtered, and the filter cake was dried to obtain a white powder solid, with a yield of 78%. Figure 5 .
[0106] 3-hydrazinyl-5-amino-1H-1,2,4-triazole 5-nitramoium tetrazolium salt:
[0107] EA theoretical value: C 14.76%, H 3.30%, N 68.84%; EA experimental value: C 17.69%, H 3.36%, N 68.94%.
[0108] IR (KBr, cm -1 ):υ=3362, 3177, 3112, 1717, 1659, 1532, 1438, 1326, 1241, 1152, 1110, 1054, 1010, 990 cm -1 .
[0109] MS (ESI + ): m / z = 115.07 [C2H7N6 + ]; MS (ESI - ): m / z = 129.02 [CHN6O2 - ].
[0110] IR in the examples represents infrared spectrum, MS represents mass spectrum, and EA represents organic elemental analysis.
[0111] The enthalpy of formation of 3-hydrazinyl-5-amino-1H-1,2,4-triazole energetic ionic salt was calculated based on the method described in the literature “Lal S, Staples R J, Shreeve J N M. Design and synthesis of phenylene-bridged isoxazole and tetrazole-1-ol based energetic materials of low sensitivity [J]. Dalton Transactions, 2023, 52(11): 3449-3457.”; the parameters such as detonation velocity and detonation pressure of the energetic ionic salt were calculated by using the EXPLO5 (V6.04) program; the thermal decomposition temperature of the energetic ionic salt was determined by using the DSC-TGA simultaneous thermal analyzer of Bruker Company in Germany; the mechanical sensitivity of the energetic ionic salt was tested by using the falling weight impact sensitivity tester and the friction sensitivity tester of OZM Company in the Czech Republic; and the structure of the energetic ionic salt was characterized by using the APEX II Smart X-ray single crystal diffractometer of Bruker Company in Germany, the CE-440 Elemental Analyzer, the Agilent 500-MS mass spectrometer of Agilent Company in the United States, and the Nicolet Fourier transform infrared spectrometer.
[0112] The properties of the energetic ionic salt obtained in the examples are shown in Table 1 below.
[0113] Table 1
[0114]
[0115] The performance of the known TNT, RDX is shown in Table 2 below.
[0116] Table 2
[0117]
[0118] Note: T d - thermal decomposition temperature; p - density; Δ f H - enthalpy of formation; D - detonation velocity; p - detonation pressure; FS - friction sensitivity; IS - impact sensitivity.
[0119] By comparing Table 1 with Table 2, it can be seen that:
[0120] 1. The detonation velocity and detonation pressure of the energetic ionic salt described in the present application are both much higher than TNT, showing high detonation performance;
[0121] 2. The energetic ionic salt described in the present application has high nitrogen content, and its impact sensitivity is much higher than that of TNT and RDX, its friction sensitivity is better than that of TNT, and its mechanical sensitivity is excellent, and it is safe for transportation;
[0122] 3. The synthesis route of the present application is simple, the purification method is simple and easy to operate, and it is convenient for industrial production.
[0123] The above-described embodiments have described the technical solutions and beneficial effects of the present application in detail, and it should be understood that the above-described is only a specific embodiment of the present application, and is not used to limit the present application. Any modification, supplement and equivalent replacement, etc. made within the principle range of the present application shall be included in the protection scope of the present application.
Claims
1. An energetic ion salt based on 3-hydrazino-5-amino-1H-1,2,4-triazole, characterized in that: The energetic ion salt is named as 3-hydrazino-5-amino-1H-1,2,4-triazole inorganic energetic ion salt, and the structural formula of the inorganic energetic ion salt is: in, It is a perchlorate anion or a nitrate anion.
2. A method for preparing a 3-hydrazino-5-amino-1H-1,2,4-triazole energetic ion salt according to claim 1, characterized in that: The following steps are involved: (1) Under acidic conditions, 3,5-diamino-1,2,4-triazole is subjected to a diazotization reaction with sodium nitrite to generate a diazonium salt; stannous chloride reacts with the diazonium salt to prepare 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride; Wherein, a is 3,5-diamino-1,2,4-triazole, b is a diazonium salt, and c is 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride; (2) reacting the 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride with silver nitrate or silver perchlorate to prepare an inorganic energetic ion salt of 3-hydrazino-5-amino-1H-1,2,4-triazole; in, It is a perchlorate anion or a nitrate anion.
3. The preparation method according to claim 2, characterized in that The hydrochloric acid concentration of the diazotization reaction is 1 to 20 mol / L; the molar ratio of the 3,5-diamino-1,2,4-triazole to sodium nitrite is 1:0.5 to 4.
0.
4. The preparation method according to claim 2, characterized in that The reaction temperature of step (1) is -20 to 20° C.; the molar ratio of 3,5-diamino-1,2,4-triazole to stannous chloride is 1:0.5 to 2.
0.
5. The preparation method according to claim 2, characterized in that The molar ratio of the 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride to silver nitrate or silver perchlorate is 1:0.5-2.
0.
6. The preparation method according to claim 2, characterized in that The reaction system solvent of step (2) includes a mixture of any one or more of water, methanol and ethanol; the reaction temperature of step (2) is -20 to 100°C.
7. An energetic ion salt based on 3-hydrazino-5-amino-1H-1,2,4-triazole, characterized in that: The energetic ion salt is named as 3-hydrazino-5-amino-1H-1,2,4-triazole organic energetic ion salt, and the structural formula of the organic energetic ion salt is: in, for .
8. A method for preparing a 3-hydrazino-5-amino-1H-1,2,4-triazole energetic ion salt according to claim 7, characterized in that: The following steps are involved: (1) Under acidic conditions, 3,5-diamino-1,2,4-triazole is subjected to a diazotization reaction with sodium nitrite to generate a diazonium salt; stannous chloride is reacted with the diazonium salt to prepare 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride; Wherein, a is 3,5-diamino-1,2,4-triazole, b is a diazonium salt, and c is 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride; (2) reacting the 3-hydrazino-5-amino-1H-1,2,4-triazole hydrochloride with lithium hydroxide to prepare 3-hydrazino-5-amino-1H-1,2,4-triazole; and then reacting the 3-hydrazino-5-amino-1H-1,2,4-triazole with an acidic energetic compound to prepare an organic energetic ion salt of 3-hydrazino-5-amino-1H-1,2,4-triazole. Here, acid represents an acidic energetic compound.
9. The preparation method according to claim 8, characterized in that The hydrochloric acid concentration of the diazotization reaction is 1 to 20 mol / L; the molar ratio of the 3,5-diamino-1,2,4-triazole to sodium nitrite is 1:0.5 to 4.0; the reaction temperature in the step (1) is -20 to 20°C; the molar ratio of the 3,5-diamino-1,2,4-triazole to stannous chloride is 1:0.5 to 2.0; the reaction temperature in the step (2) is 10 to 100°C; and the reaction system solvent in the step (2) includes a mixture of any one or more of water, methanol and ethanol.
10. Use of the energetic ion salt according to claim 1 or 7 in the research of new high-energy insensitive explosives, low characteristic signals and insensitive propellants.
Citation Information
Patent Citations
3-amino-4-(4-amino-5-hydrazino-1, 2, 4-triazole-3-yl) furazan and energetic ionic salts thereof
CN116041340A