Hence the direct converse passage from ammonia into hydrazine is impossible.
This substance is obtained by the action of hydrated hydrazine on the compound ether of benzoic acid).
Thus hydrazine is a very feeble base, for its heat of saturation is not only lower than that of ammonia (+12·4 C.
Thus hydrazine is an endothermal compound; its passage into ammonia by the combination of hydrogen is accompanied by the evolution of 51·5 C.
Notes In the preparation of the sodium hypochlorite solution it is quite necessary that the mixture be kept cold and be alkaline to red litmus paper at the end of the reaction, if good yields of hydrazineare to be obtained.
In order to obtain a pure white hydrazine sulfate as the first precipitate, it is necessary to cool the hydrazine solution thoroughly and filter it twice before the sulfuric acid is added.
This salt, when suspended in ten times its weight of distilled water and treated with hydrogen sulfide, decomposes into copper sulfide and hydrazine sulfate.
After the copper salt has been filtered off, the solution is concentrated until the hydrazine sulfate crystallizes.
It is possible for one man, simultaneously evaporating six dishes of the hydrazine mixture, to turn out from 20 to 25 runs in nine hours.
If the crude hydrazine is brown, it is advisable to use a little bone-black.
The mother liquor obtained from the crystallized hydrazine sulfate contains a small amount of hydrazine.
Defn: An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids.
Since it is to these two groups that the phenyl hydrazine residue attaches itself, it follows that the resulting osazones must be identical in structure and properties.
For example, glucose reacts with phenyl hydrazine in acetic acid solution, in two stages.
When an osazone is decomposed by boiling with strong acids, the phenyl hydrazine groups break off, leaving a compound containing both an aldehyde and a ketone group.
In 1875, the year following his engagement with von Baeyer, he published his discovery of the organic derivatives of a new compound of hydrogen and nitrogen, which he named hydrazine (q.
Marscorp has it, but they're sitting on it because they've got their fingers in hydrazine interests here, and the atom drive will make hydrazine useless for space fuel.
While they're unloading the G-boat, I wish you'd get the tanks refilled with hydrazine and nitric acid.
Space Fuels won't sell us anyhydrazine and nitric acid to refill the tanks.
Marscorp has millions tied up in hydrazine interests, and they're more interested in keeping an atomic ship off this run than they are in a monopoly franchise.
HCl is added when the hydrazine compound separates in a few moments in lustrous yellow scales which completely fill the solution.
A modification of this method was suggested by an observation of Baeyer and Liebermann that if phenyl hydrazine be boiled with a dilute solution of copper sulphate the hydrazine group is replaced by hydrogen and benzene thus formed.
Hence it was believed that if the hydrazine compound should be made from diazo compound mentioned above, the corresponding hydrocarbon, i.
The tin was then removed from the solution by the addition of sodium carbonate and the hydrazine compound thrown down with HCl.
When the hydrazine has separated the mother liquor is again yellow.
The hydrazine thus prepared was treated with a hot 10% solution of copper sulphate till a permanent blue color was obtained in the solution.
The acid can also be obtained by the action of nitrous acid on hydrazine sulphate; by the oxidation of hydrazine by hydrogen peroxide and sulphuric acid (A.
Fischer found that these ethers did not reduce Fehling's solution, neither did they combine with phenyl hydrazine at 100 deg.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hydrazine" in a variety of sentences. We hope that you will now be able to make sentences using this word.
