Sentences with phrase «hydrazine in»

Hydrazine in amount found in these tanks is very toxic.

To maneuver, Cassini carefully places monomethyl hydrazine in contact with nitrogen tetroxide, which spontaneously oxidizes (burns) it.

Not exact matches

Thermolysis of the applied tosyl hydrazones (easily prepared by condensation of the corresponding aldehydes with tosyl hydrazine) leads to in situ formation of the corresponding diazo compounds.

From the beginning, New Horizons was designed to be able to explore additional objects in the Kuiper Belt, carrying extra hydrazine fuel for that mission.

A mixture of 3 - methoxybenzaldehyde (50 g, 367.64 mmol) and (2, 4 - dimethylphenyl) hydrazine hydrochloride (63.23 g, 367.64 mmol) in EtOH (50 mL) was stirred at room temperature for 1 h, the obtained solid was filtered off, washed with ethanol and dried under vacuum to afford hydrazone hydrochloride 1 (95.94 g) in 90 % yield as a light brown solid.

The synthesis of J147 has been carried out using simple chemistry as described in our previous paper by condensation of 3 - methoxybenzaldehyde and (2, 4 - dimethylphenyl) hydrazine hydrochloride in EtOH at room temperature, followed by acetylation using trifluoroacetic anhydride and triethylamine in CH2Cl2 gave J147 (Scheme 1).

Controllers used hydrazine fuel in the thrusters to keep SOHO pointed in the right direction, but they were using quite a bit of it — 15 pounds (7 kilograms) a week, on average.

The Daihatsu FC ShoCase is believed to be the first fuel - cell vehicle to employ the auto maker's hydrazine - hydrate technology, which, according to researchers, has potential to substantially reduce fuel cell costs by virtually eliminating platinum and other precious metals in the electrode catalyst.

Blasting a Spy in the Sky: The Pentagon insists that an Aegis missile cruiser blasted a descending spy satellite Wednesday night to avoid any risk of a big toxic blot from the hydrazine fuel, despite various assertions that the exercise had other motives, for instance:

* In soil, hydrazines may stick to particles and be changed within a few days to less harmful compounds.

There are lots of hydrazine tanks up there in space, and we are sending more up all the time.

Does beryllium act as a catalyst in hydrazine reactions?

From the Clarke Belt, if active station - keeping is disabled (or if the satellites run out of the hydrazine fuel burned by their thrusters), the birds tend to drift to the «low» point in their orbit, a stable resting point over the Indian ocean.