A study on basic copper nitrate as catalyst for 5AT/Sr (NO3)2 propellant

Author(s):  
Cheng-Yang Cao ◽  
Dan Zhang ◽  
Song Lu ◽  
He-Ping Zhang
1913 ◽  
Vol 32 ◽  
pp. 4-11
Author(s):  
Alexander Charles Cumming ◽  
Alexander Gemmell

SUMMARY1. Graham states that when nitric acid of specific gravity greater than 1·4 acts on copper oxide a basic nitrate is obtained. We were unable to obtain a basic salt under these conditions.2. Copper oxide and approximately 100 per cent. nitric acid yield copper nitrate trihydrate, nitrogen peroxide, and oxygen. The equation for the reaction is probably CuO + 6HNO3 = Cu(NO3)2, 3H2O + 4NO2 + O2.3. The only basic nitrate of copper appears to be Cu(NO3)2·3Cu(OH)2. The product obtained by heating the trihydrate to 100° has this composition, and is not Cu(NO3)2·2Cu(OH)2, as stated by Graham.4. Dehydration of copper nitrate does not yield anhydrous copper nitrate, but results in decomposition, with formation of basic copper nitrate, whether the dehydration is performed at ordinary or higher temperatures.5. Copper oxide does not interact with nitric anhydride.6. The only hydrates of copper nitrate appear to be the trihydrate and hexahydrate. The transition temperature is 24·65° (±0·05) corr.7. Concentrated nitric acid dehydrates the hexahydrate, while dilute nitric acid hydrates the trihydrate. It was not found possible to determine the concentration of nitric acid, which would be in equilibrium with both hydrates.


2020 ◽  
Vol 63 (8) ◽  
pp. 357-362
Author(s):  
K. B. Larionov ◽  
I. V. Mishakov ◽  
A. V. Zenkov ◽  
K. V. Slyusarskiy ◽  
A. A. Gromov
Keyword(s):  

2018 ◽  
Vol 15 (10) ◽  
pp. 891-894 ◽  
Author(s):  
Zhu-Qing Wang ◽  
Meng-Ping Guo ◽  
Yong-Ju Wen ◽  
Xiu-Li Shen ◽  
Mei-Yun Lv ◽  
...  

2011 ◽  
Vol 695 ◽  
pp. 393-396 ◽  
Author(s):  
Chang Mao Hung

Since the growing interest in the manufacture and environmental applications of nanocomposites consisting of CuO and TiO2nanoparticles (NPs), related toxicological effect and interaction with cellular structures for these newly developed materials are still unknown. Recent literature reveals that nanosized CuO and TiO2particles have cytotoxicity risks and ability to cause oxidative stress on health. This work considers the CuO doped TiO2nanocomposite particles were synthesized via a coprecipitation method with aqueous solutions as precursors of copper nitrateand titanium dioxide. Moreover, the nanocomposite particles were characterized using TGA-DTA, UV-Vis and TEM measurements. The calcination temperature was selected at 873 K. The nanocomposite particles were characterized by TEM, as the primary particles, aggregates ranged from 30 to 100 nm and have a good dispersion character. Cell cytotoxicity assessment and the percentage cell survival was determined by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenol)-2-(4-sulfophenyl)-2H-tetrazoli um (MTS) assay on human fetal lung tissue cell (MRC-5). The experimental results show that the CuO doped TiO2nanocomposite particles cause potential cytotoxicity effect in cultured human cells.


2015 ◽  
Vol 54 (30) ◽  
pp. 8795-8799 ◽  
Author(s):  
Mingchun Gao ◽  
Yingying Li ◽  
Yuansheng Gan ◽  
Bin Xu
Keyword(s):  

2014 ◽  
Vol 90 ◽  
pp. 127-132
Author(s):  
Yuichiro Kuroki ◽  
Takashi Hatsuse ◽  
Tomoichiro Okamoto ◽  
Masasuke Takata

A novel phosphor, copper doped hydronium alunite ((H3O)Al3(SO4)2(OH)6:Cu), exhibiting a blue photoluminescence peak at a wavelength of 420 nm was successfully synthesized from aluminum and copper sulfates solution under hydrothermal condition (240 °C, 60 min). The measurement of XRD revealed that the obtained products were single phase with a crystal structure of (H3O)Al3(SO4)2(OH)6. Luminescence intensity of (H3O)Al3(SO4)2(OH)6:Cu synthesized from sulfates solution was 6.2 times higher than that from an aluminum nitrate solution mixed with an elemental sulfur and a copper nitrate solution. The increase of luminescence intensity was resulted from an improvement of the crystallinity of (H3O)Al3(SO4)2(OH)6.


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