Suitable oxidizing agents are dichromates, arsenic, sodium sulphate gypsum, barytes and nitre. Suitable reducing agents include slag, aluminium powder, cyanides, carbon, sulphur, calcium sulphide, ferrous sulphide, iron pyrites and iron chromite.doi:US3869270 ABURNISTON JOHNBRUNGS MICHAEL...
silver, copper, mica, deep coloured brass, red lead, vermilion, tin, yellow orpiment, yellow myrobalan, lac, indigo and some kind of iron oxide.
in a settlement, in an apartment building, in an enterprise, as well as with other owners of artesian bore and water intakes to clean the source water from iron, manganese, hydrogen sulphide, ammonia, fluorine, boron, strontium, etc. concentrations. The protocols of the Moscow Test Center for...
The bacteria belonging to the families of the Thiobacteriaceae, Beggiatoaceae and Achromatiaceae are commonly called the colourless sulfur bacteria. While
Influential elements of analysis on Cu-Sn sulphidecolour; 影响铜锡组硫化物颜色分析的因素探讨 6) Yandian 颜店 1. Study on Geological Characteristics ofYandianIron Deposit and Ore-bearing Property of Jining Group in Jining City; 济宁颜店铁矿地质特征及济宁岩群含矿性研究 ...
Suitable oxidizing agents are dichromates, arsenic, sodium sulphate gypsum, barytes and nitre. Suitable reducing agents include slag, aluminium powder, cyanides, carbon, sulphur, calcium sulphide, ferrous sulphide, iron pyrites and iron chromite....
for colour TV screens, has pigment particles (I) with red body colour adhering to the surface of the phosphor particles (II), (I) consisting of Fe oxide particles. Pref. (I) can be formed on and/or bonded to (II). (II) are based on lanthanide oxide or oxysulphide e.g. Y2O3:Eu...
Suitable oxidizing agents are potassium nitrate or sodium or barium peroxides. The leachings contain alkali silicates, fluoride and aluminate, iron, mainly as ferrate, and also chromate and vanadate, which may be recovered.
N11, N11, N111, N111-diethylene - di (N-n-hexadecylsulphonylbenzamidrazone) is prepared by refluxing N:N-dibenzoyl piperazine with phosphorus pentasulphide to give N:N-dibenzothiopiperazide which is reacted with methyl iodide to give the salt. The salt is reacted with n-hexadecylsulphonyl...
solvent; it also refers to the use of solutions of the salts of the following metals for producing the desired differential effects-Copper, silver, nickel, cadmium, antimony, tin, iron and aluminium,- and states that the metal sulphide first formed may be subsequently converted into the oxide....