发明人: JH Bigelow 被引量: 7 摘要: Photographic silver halide emulsions which have their sensitivity increased by the addition of sulfur-substituted isothioureas of the formula; ##STR1## where R, R.sub.2, and R.sub.3 are organic radicals and R.sub.1 is an organic radical or H.收...
Organometallic chemistry of sulfur/phosphorus donor ligand complexes of nickel(II) and nickel(0) The X-ray crystal structures and electrochemical properties as well as chemical reactivity o the thioether complexes [Ni(Ph2PCH2CH2SEt)2][BF4]2 (5) and [Ni... YM Hsiao,SS Chojnacki,P Hinton,.....
3. Use and Manufacturing3.1 Description SILVER(I) SULFIDE, with the chemical formula Ag2S, has the CAS number 21548-73-2. It appears as a black solid with no odor. The basic structure of SILVER(I) SULFIDE consists of two silver atoms bonded to one sulfur atom. This compound is insoluble...
This peak indicates the formation of Ag-S bonds, showing that sulfur-containing compounds in the C. arietinum extract interact with the CA-AgNPs. These sulfur compounds play a significant role in stabilizing the CA-AgNPs. Peaks at 662 cm−1 and 961 cm−1 are associated with Ag–O ...
and leaching. Copper concentrates are calcined for removal of sulfur and smelted in a reverberatory furnace to convert into blister copper containing 99 wt% Cu. The blister copper is fire-refined and cast into anodes. The anodes are electrolytically refined in the presence of cathodes containing...
There are many reasons why silverware and silver jewelry often tarnish due to the reaction of silver with sulfur-containing substances. This element combines silver to form black, causing the surface of silver jewelry to lose its luster and become dull. ...
What are the applications of Silver sulfite and how is it used?Silver sulfite, with the chemical formula Ag2SO3 and a molecular weight of 295.80, is a white crystalline substance. It has a melting point of 100℃ (decomposition) and is insoluble in liquid sulfur d.....
(body odor, sweat, etc.), nitrogen compound odor (decayed urine, etc.) and sulfur compound odor (excrement, etc.). Means for preventing these odors include (1) masking using fragrance, (2) adsorption using active carbons, zeolites, etc., (3) neutralization using acids and alkalis, and (...
the primitive cell is centrosymmetric with formula units in the cell. Li, Fe, and P atoms are distributed on 4a,4c, and 4c position (wyckoff notation), respectively. As the structure of the phospho olivine builds from LiO6 and MO6 octahedral linked to PO3 橄榄石结构属于分光镜小组D162h; ...
Heterocyclic compounds hold promise in these efforts because of the presence of nitrogen, sulfur or oxygen atoms in their structure, which are capable of coordinating metal ions. N-heterocyclic ligands, especially polypyridines, have been extensively studied in combination with many metals in the sear...