Ignition-delay measurement for drop test with hypergolic propellants: Reactive fuels and hydrogen peroxide was written by Kang, Hongjae;Park, Seonghyeon;Park, Youngchul;Lee, Jongkwang. And the article was included in Combustion and Flame in 2020.Recommanded Product: 112-49-2 This article mentions the following:
Green hypergolic propellants have been extensively studied. In the present study, we attempted to improve the measurement technique for the ignition delay in hypergolic reactions by using a drop-test apparatus The evaluation method for the hypergolicity is important because an increase in the diversification of green hypergolic combinations is inevitable. Hydrogen peroxide (90 wt%) was used as an oxidizer, and six different reactive fuels were prepared Sodium borohydride was utilized as an ignition source for the fuels. Optical and acoustic sensors were employed to reliably measure the ignition delay. The proposed measurement technique used in this study accurately reflected the phys. phenomena of the hypergolic interactions. The tech. limitations in the conventional measurement technique using a high-speed camera were exptl. investigated. Liquid-phase reactions were dominant in the hypergolic reactions of the glyme-based reactive fuels. Gas-phase reactions significantly influenced the hypergolic reactions of most of the amine-based reactive fuels. The pyridine-based reactive fuel had a longer delay time for the gas-phase reaction process than the liquid-phase reaction process. Recognizing the rate-determining step of the hypergolic ignition is necessary for not only designing a rocket injector but also reducing combustion instability, e.g., reactive stream separation In the experiment, the researchers used many compounds, for example, 2,5,8,11-Tetraoxadodecane (cas: 112-49-2Recommanded Product: 112-49-2).
2,5,8,11-Tetraoxadodecane (cas: 112-49-2) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Recommanded Product: 112-49-2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem