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Dimethylhydrazine (DMH) has the chemical formula C2H8N2, but that's only part of the story, as you might have guessed. There is a symmetrical and an unsymmetrical "version" of this chemical compound. Let's start with the middle of the compound: N-N That's the pair of nitrogen atoms with a single bond between them. Now we have to deal with the pair of bonds on each nitrogen atom. There is a CH3 and a CH3 and H and H to add to the "mix" here. It's simple from here on out. In UDMH, unsymmetrical dimethylhydrazine (1,1 dimethylhydrazine), the H and the H are bonded to the "end" of one nitrogen atom, and the CH3 and the CH3 are bonded to the "end" of the other nitrogen atom. It's unsymmetrical because the H's are both on one end, and the CH3's are both on the other end. It might look something like this: HH N-N CH3CH3 The unsymmetrical dimethylhydrazine finds use as a component of rocket fuel. But you have to keep this stuff capped to isolate it from air 'cause it likes to take up the moisture in it, and the O2 and CO2 as well. These dilute its effectiveness as a propellant. It's fairly stable, and cannot be set off by shock, but it's volitile, as you might have guessed. In symmetrical dimethylhydrazine (1,2 dimethylhydrazine), H and CH3 are on one outside, and CH3 and H are on the other outside. Note that the H's and the CH3's are on opposite "corners" of the molecule. If you look at the thing, it might look like this: CH3H N-N HCH3 This particularly nasty compound is a powerful carcinogen, and it is used to induce tumors in animals for research purposes. UDMH has roots in hydrazine (N2H4), which has been known for quite a while (since the late 1800's). It was incorporated in the earliest rocket fuels, but UDMH rapidly replaced it for the most part. It is certain that the Natzi war machine used it, and the Me 163 Komet is an example of a user of hydrazine fuel. UDMH might be viewed as at "take off" from hydrazine. Links can be found below for more information.
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Why used Unsymmetrical dimethylhydrazine nitrogen tetroxide in space shuttle?
Unsymmetrical dimethylhydrazine (UDMH) and nitrogen tetroxide are used as rocket propellants in spacecraft like the space shuttle because they are hypergolic, meaning they ignite upon contact without needing an external ignition source. They are also storable for long periods without significant degradation, making them reliable choices for space missions. Additionally, these propellants have a high specific impulse, which is important for achieving the velocity needed to escape Earth's gravity.
What are unsymmetrical alkenes?
Unsymmetrical alkenes is molecule which is an pair of ligands. The molecule has doubly bonded carbon.
What is the empirical formula of dimethylhydrazine?
C2H8N2 is molecular formula so empirical formula is C1H4N1
Having no symmetry is called what?
unsymmetrical
What makes Daminozide?
Daminozide is made by reacting succinic anhydride and1,1-dimethylhydrazine.
A molecule in which the polar covalent bonds do not cancel out?
unsymmetrical
Another word for not the same on both sides?
unsymmetrical asymmetrical
What is unsymmetrical current?
it means those currents those are short circuit.
What do you mean by unsymmetrical port timing diagram?
Timing s not symmetrical
Difference between unsymmetrical and symmetrical bending?
Symmetrical bending occurs when a beam is loaded uniformly along its length, resulting in bending stresses that are equal on both sides of the beam's neutral axis. Unsymmetrical bending occurs when a beam is loaded unevenly, causing different magnitudes of bending stress on opposite sides of the beam's neutral axis.
What are symmetrical and unsymmetrical faults?
the fault in electrical transmission line which give rise to symmetrical fault current is called symmetric fault. e.g; L-L-L-G fault. the fault in transmission line which give rise to unsymmetrical fault current is called unsymmetrical fault.e.g; L-L , L-L-G , L-G fault to solve the unsymmetrical fault, the fault current can be represented by sum of the sequences--zero phase sequence , +ve phase sequence , -ve phase sequence. where L:line G:ground
How to identify severe case of unsymmetrical fault?
A severe case of unsymmetrical fault can be identified by analyzing the voltage and current waveforms during the fault condition. Look for large imbalances in phase voltages and currents, significant distortion in the waveforms, and high fault currents. Additionally, monitoring any abnormal behavior in protective relays and equipment can also help in identifying severe unsymmetrical faults.
