نتایج جستجو برای: ferric oxide

تعداد نتایج: 185663  

Journal: :Bulletin of the Chemical Society of Japan 1970

Journal: :Journal of the American Chemical Society 1908

Journal: :Bulletin of the Chemical Society of Japan 1975

1990
G. Bisht L. S. Bisht

Irradiation of sterilized aqueous solution of ammonium formate and ammonia with UV light in the presence and or absence of certain inorganic sensitizers for 25 hrs. gave six ninhydrin positive products in appreciable amounts. Out of the six products observed fiver were characterized as lysine, serine, glutemic acid, n-amino butyric acid and leucine. The sensitizing effect of additives on ammoni...

Journal: :روش های عددی در مهندسی (استقلال) 0
احمد نصیر احمدی a. nasirahmadi لیلا استحقاری و علی اکبر سودی l. estehghari and a. a. soudi

the compounds, lanthanium chromite, lanthanium magnetite and lanthanium ferric oxide were prepared through sol-gel methods in powdered form, then calcinated, peletized, and sintered at various temperatures. electrical conductivity of these compounds was measured at various temperatures. the effectiveness of strontium as a dopant on electrical conductivity was also investigated. electrical condu...

Journal: :Free radical research communications 1993
A J Carmichael L Steel-Goodwin B Gray C M Arroyo

The production of nitrate (NO3-) and nitrite (NO2-) from macrophage-derived NO was studied using EPR and spin trapping. The formation of NO3- was determined via EPR in reactions involving the iron-binding protein, lactoferrin. The formation of NO2- was determined via EPR/spin trapping in the reaction between NO2- and H2O2. Dissolved nitric oxide (NO.) was reacted with lactoferrin yielding an EP...

Journal: :Science 1997
S F Hviid M B Madsen H P Gunnlaugsson W Goetz J M Knudsen R B Hargraves P Smith D Britt A R Dinesen C T Mogensen M Olsen C T Pedersen L Vistisen

Many of the particles currently suspended in the martian atmosphere are magnetic, with an average saturation magnetization of about 4 A. m2/kg (amperes times square meters per kilogram). The particles appear to consist of claylike aggregates stained or cemented with ferric oxide (Fe2O3); at least some of the stain and cement is probably maghemite (gamma-Fe2O3). The presence of the gamma phase w...

Journal: :Chemical communications 2005
Jyongsik Jang Kyung Jin Lee Younggeun Kim

Polyimide nanotubes with tunable wall thickness were fabricated by a precursor impregnation method using an AAO template, and carbon nanotubes containing magnetic iron oxide were obtained using ferric chloride-embedded polyimide precursor by a carbonization process.

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