Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process conditions have been attained, thereby controlling the quantity and form of carbon nanotubes produced. The ...
Why elements in periodic table are considered neutral elements? Define reactive metals What charge do nonmetals have? Why does Fluorine have a valence of -1? How do you use the periodic table to identify this? How do chemists use the...
a reactive ring group, an ethylenically unsaturated group, and combinations thereof; R 1 and R 2 comprise, each independently, H, an organic group, or an organometallic group; and X is a bond, O, S, an aminylene group, a sulfonyl group, an organic linking group, or a combination ther...
The plates are made from a reactive metal, i.e. a metal from the transition block of the periodic table, preferably tantalum, a tantalum-tungsten alloy, niobium or a tantalum-niobium alloy. The plates are joined by electron beam welding under vacuum. An Independent claim is included for a ...
For purposes of the invention, the expression “functionalized chain” means, for example, an alkyl chain comprising at least one functional (reactive) group chosen, for example, from those recited above. For example, in one embodiment, the hydrogen atoms of at least one alkyl chain may be su...
This invention concerns the hydroxy-alkyl ethers of hydroxy-diphenyl compounds containing at least one unreactive substituent in one of the benzene rings and in which the alkyl residue of the hydroxy-alkyl radical contains at least 2 carbon atoms. These compounds may also be termed mono-(substitut...
metal oxides that may be metal oxides, mixed metal oxides, for example, the manufacturing method of ceria / zirconia, and obtained by the method in particular is described. The oxides of metals have improved properties due to the high enthalpy solvent with a high carboxylic acid content. For ...
“Kokai”) S61-127718 (U.S. Pat. No. 4,528,081) describes a curable moisture-penetration-resistant polyorganosiloxane composition which consists of a silicone oil having a trimethylsilyl terminal group, a photosensitizer, and a reactive polyorganosiloxane which contains a condensation-reaction ...
Solid consists of a material selected from the group consisting of ag2o, ag2co3 and agoh; at least one other precious metal; and a microporous carrier... R Andorf,C Plog,G Schaeffner - US 被引量: 0发表: 0年 Reactive nanoparticles as destructive adsorbents for biological and chemical cont...
This document furthermore specifies that the stability of benzoyl peroxide is strongly influenced by the chemical composition of the formulation and by the storage temperature. Benzoyl peroxide is highly reactive and decomposes in solution at low temperature due to the instability of its peroxide bond....