dimethylhydrazine

Unsymmetrical dimethylhydrazine, a rocket fuel, is prepared from dimethylamine.

The fuel for the advanced engines goes by the tongue-twisting name of unsymmetrical dimethylhydrazine, according to the secret cables.

Unsymmetrical dimethylhydrazine was bipropellant used in R-16.

The agency first received studies in the mid-1970's suggesting that daminozide, and its residue, a substance called unsymmetrical dimethylhydrazine, might cause cancer.

Mixed with unsymmetrical dimethylhydrazine it was used as Hydyne, a propellent for liquid-fuel rockets.

The fuel, unsymmetrical dimethylhydrazine, is hypergolic, meaning contact with the oxidizing agent creates instant ignition.

A number of interactions were shown between crypt cell production, dimethylhydrazine administration, small bowel resection, and different sites of the intestine.

Moreover, the additional groups at 32 weeks allowed testing of interactions between calcium, dimethylhydrazine, and small bowel resection, revealing two way but not three way interactions.

This was induced with subcutaneous dimethylhydrazine (Aldrich Chemical Co Ltd) 40 mg/kg body weight, weekly for five weeks.

Like other members of the Universal Rocket family, the Proton-K was fuelled by Unsymmetrical dimethylhydrazine and nitrogen tetroxide.

Aerozine 50 is a 50/50 mix by weight of hydrazine and unsymmetrical dimethylhydrazine (UDMH).

The propellants used are unsymmetrical dimethylhydrazine (UDMH) and nitrogen tetroxide (NO).

Both dimethylhydrazine and small bowel resection individually increased CCPR while calcium generally reduced this, in a simple arithmetic manner (that is, there was no interaction).

The most common hypergolic fuels, hydrazine, monomethylhydrazine and unsymmetrical dimethylhydrazine, and oxidizer, nitrogen tetroxide, are all liquid at ordinary temperatures and pressures.

Symmetrical dimethylhydrazine (CHNHNH(CH)) is also known but is not as useful.

There was a significant reduction of tumours in the group receiving calcium supplementation and dimethylhydrazine compared with the group receiving dimethylhydrazine alone (Fig 2).

RFNA and Unsymmetrical dimethylhydrazine (UDMH)

It is a three stage rocket, consisting of the two-stage Taepodong-1, fuelled by nitric acid and unsymmetrical dimethylhydrazine, with a solid-fuelled upper stage to perform orbital insertion.

MMH and its chemical relative unsymmetrical dimethylhydrazine (UDMH) have a key advantage that they are stable enough to be used in regeneratively cooled rocket engines.

UDMH is easier to manufacture than symmetrical dimethylhydrazine is, and UDMH is a fairly common rocket fuel.

The spacecraft's mass at launch was some 13 tonnes, most of which was the propellants unsymmetrical dimethylhydrazine (UDMH) and dinitrogen tetroxide (DTO).

Critics claim that Proton rocket fuel (unsymmetrical dimethylhydrazine (UDMH)) and debris created by Russia's space programme is poisoning areas of Russia and Kazakhstan.

Manufacturing of unsymmetrical dimethylhydrazine (UDMH), which is a component of rocket fuel that requires NDMA for its synthesis, proved to be the culprit in these cases.

It was a liquid fuel rocket using a hypergolic combination of unsymmetrical dimethylhydrazine (UDMH) as fuel, and nitrogen tetroxide (NTO) as oxidizer.

Reddy BS, Narisawa T, Vukusich D, et al.: Effect of quality and quantity of dietary fat and dimethylhydrazine in colon carcinogenesis in rats.