Basic copper carbonate of a bulk density less than 800 grams per liter is treated in an aqueous dispersion with phosphoric acid at temperatures less than 70 DEG C. and the reaction mixture is then mechanically agitated further within the same temperature range. The copper phosphate so obtained ...
Basic lead carbonate. In use since the prehistoric Greek period, the second oldest artificially produced pigment. It was the only white oil-colour available to artists until the middle of the 19th century. Chrome Orange, Chrome Yellow, Chrome Red A family of inexpensive natural pigments made from...
a, Design of the 3D light-field sensor on the basis of pixelated colour conversion. Light-field-sensing pixels, which consist of patterned perovskite nanocrystals on a transparent film, convert light from different directions into luminescence signals of different colours, which can be detected by a...
To develop new methods for oil and gas resource appraisals that will permit the systematic col- lection and evaluation of basic geological and geophysical data from petroleum provinces throughout the United States and selected areas of the world; 2. to apply these methods to making detailed ...
(applied voltages of 1.5, –1.5, and –2 V, respectively) of three butterfly-like electrochromic devices containing the three basic colours of red, yellow, and blue, where the thickness of tungsten oxide layer is carefully chosen to be 163, 152, and 200 nm, respectively. Source data ...
etc. In the case of cationic (basic) dyes, the insolubilising group has to be a complex acid, such as phosphotungstomolybdic acid (PTMA). In the organic pigment sections of the Colour Index™, colon numbers have been used to distinguish between the various counter-ions used in these ...
The reagent may also contain a buffer, preferably a phosphate buffer and or a catalyst, such a metal halide like copper or iron chloride. BRIEF DESCRIPTION OF THE DRAWINGS FIG.1shows the optimal test method of the present invention FIG.2shows devices suitable for the detection of the colour ...
Suitable carbonates are basic copper carbonate, bismuth oxycarbonate, cobalt carbonate, basic cobalt carbonate, ferrous carbonate, basic lead carbonate and manganese carbonate and exemplified resins are ethyl cellulose, polybutyl methacrylate and petroleum resin....
(g) coloured ferrocyanides, such as titanium ferrocyanide, copper or uranyl ferrocyanide, and colourless ferrocyanides such as those of zinc, and thorium, serving as mordants for yellow and red basic dyes, split by sodium carbonate, caustic alkali, or ammonia and soluble in potassium oxalate ...
sulfone or CN, and M represents an element selected from the group consisting of aluminium, nickel, cobalt, iron, zinc, copper and manganese; wherein R1 and R2, independently of one another, represents a linear or branched alkyl radical, or halogen; n denotes a natural number between 0 and...