Hi Bruce Here's a link with info about hydrazine.
Ken http://www.asi.org/adb/04/03/09/hydrazine-info.html ...Chemical Properties Hydrazine is a powerful reducing agent. It is attractive as a reducing agent due to its high hydrogen content, and friendly by-product of nitrogen. It will reduce a number of important metal salts to the element, including silver and nickel. Producing 148.6 kcal/mol in its oxidation reaction, hydrazine has an impressive affininty for oxygen: N2H4 + O2 = N2 + 2 H2O It is used in this capacity to remove oxygen from boiler systems, and as an additive to many substances to prevent oxidative deterioration... --- Bruce Crowder <[EMAIL PROTECTED]> wrote: > > > Hi Ken, > > Any idea what the energy content is of a kg of > hydrazine would be? > > -Bruce > > > *~*~*~*~*~*~*~*~* > > > Date: Tue, 10 Feb 2004 02:28:28 -0800 (PST) > From: Ken Gotberg <[EMAIL PROTECTED]> > Subject: Re: Solar to Noncarbon Fuels Other Than H2 > > Hi Murdoch, Greg, and April > > Hydrazine is a liquid at normal temps (mp 2C, bp > 113C) > and while no longer used as a rocket booster fuel, > it > is used for positioning/microcontroller jets. The > technology is fairly developed now and could make > sense as an earthbound vehicle fuel. Nitrogen > compounds are used in explosives due to high > energy/power densities and I’m not sure how big a > potential problem this is, perhaps on the same order > > as H2 without the storage problems. People > developing > rockets face the same problems as, more so, trying > to > get the most useful energy out of a fuel with the > least amount of mass. Noncarbon fuel alternatives > at > this juncture are in electric storage (batteries, > ultracapacitors,?), mechanical storage in things > like > flywheels, and various fuel cells. Probably others > that list members may know about. > > One more possibility to look at and N2 is available > everywhere, ~800,000 ppm in the atmosphere versus > ~350 > ppm for CO2 used in biofuels. There are other > nitrogen fuels besides hydrazine that may also be > potential candidates. Here’s a link to rocket fuels > > > > And about hydrazine > > http://www.astronautix.com/props/hydazine.htm > > Fuel: Hydrazine. Fuel Density: 1.01 g/cc. Fuel > Freezing Point: 2.00 deg C. Fuel Boiling Point: > 113.00 > deg C. > > Hydrazine (N2H4) found early use as a fuel, but it > was > quickly replaced by UDMH. It is still used as a > monopropellant for satellite station-keeping motors. > > Hydrazine marketed for rocket propellant contains a > minimum of 97 per cent N2H4, the other constituent > being primarily water. Hydrazine is a clear, > water-white, hygroscopic liquid. The solid is white. > > Hydrazine a toxic, flammable caustic liquid and a > strong reducing agent. Its odour is similar that of > ammonia, though less strong. It is slightly soluble > in > ammonia and methyl-amine. It is soluble in water, > methanol, ethanol, UDMH, and ethylenediamine. > Hydrazine is manufactured by the Raschig process, > which involves the oxidation of ammonia to > chloramine, > either indirectly with aqueous sodium hypochlorite > or > directly with chlorine, and subsequent reaction of > chloramine with excess ammonia. Raw materials > include > caustic, ammonia, and chlorine; these are > high-tonnage, heavy chemicals. The cost of anhydrous > > hydrazine in drum quantities in 1959 was $ 7.00 per > kg. The projected price, based on large-scale > commercial production, was expected to be $ 1.00 per > > kg. Due to environmental regulations, by 1990 NASA > was > paying $ 17.00 per kg. > > Best regards, > > Ken > > > > __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
