Maintenance determined that hydrazine
had not been used and the aircraft was released to maintenance.
The kit does not require harsh reagents such as hydrazine
, hence researchers are able to obtain O-glycan samples easily and safely.
Because the new propellant provides improved performance and volumetric efficiency compared to hydrazine
, more of it can be stored in propellant tanks of the same volume, resulting in a 50-percent increase in spacecraft maneuvering capability for a given volume.
Therefore we decided to use for the preparation of aza-Phe, aza-Tyr, and aza-Trp precursors another known synthetic pathway, which includes direct A-alkylation of protected hydrazine
with appropriate alkyl halides (Scheme 1, right side).
derivatives are dangerous for any types of exposure, because they have long-term and specific effects and particularly they cause tumors in organs and tissues of animals .
Osazone formation is the direct reaction of any of these carbohydrates (glucose, fructose and mannose) with phenyl hydrazine
which resulted in the formation of crystalline colored compounds which was applied for the qualitative analysis of these compounds.
If verified as a valid alternative, this new propellant could be used not only in spacecraft, but also in military vehicles that operate on hydrazine
, said Roger Myers, executive director of Aerojet Rocketdyne, a partner in the program.
content in the sample was determined by titration using KI[O.
Windhoek (Namibia), Dec 26 (ANI): A mysterious metal ball that thudded to a remote grassland in Namibia last month has been identified as a hydrazine
tank from an unmanned rocket.
One of the chemicals he mentioned was hydrazine
, a highly toxic compound, also necessary for the proper maintenance of power station units.
Summary: TEHRAN (FNA)- Iranian researchers at the University of Tabriz succeeded in measuring hydrazine
at a cheaper price with the help of electrodes modified by silver nanoparticles.
Aerojet has reportedly provided monopropellant hydrazine
thrusters for every GPS satellite launched to date as well as complete propulsion systems for Boeing's GPS IIF.
Cold learned that hydrazine
sulfate (HS), an inexpensive compound, inhibits PEP-CK.
He estimated there was an 80-90 per cent chance that the missile struck the most important target on the satellite - its fuel tank, containing 454kg of hydrazine
, which Pentagon officials say could have posed a health hazard to humans if it had landed in a populated area.
Because the satellite's fuel contains the toxic chemical hydrazine
, it is possible that the reentry of the satellite could pose a public health threat if pieces of it fall into populated areas.