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  • noun

Synonyms for bichromate

a salt of the hypothetical dichromic acid


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References in periodicals archive ?
The solutions used for the determination of COD are: Sulfuric acid (H2SO4), silver sulfate (Ag2SO4), Mohr's salts (iron solution and ammonium (NH4) 2Fe (SO4) 26H2O), bichromate of potassium (K2Cr2O7) and ferroin (FeSO4, 7H2O) as an indicator dye.
The most common allergens noted by him were potassium bichromate (27%), nickel sulfate (26%) followed by fragrance mix and paraben mix.
Photographers have used this gum bichromate technique to lend a painterly aspect to their works since the 19th century.
As the high-quality reproductions in Gertrude Kasebier: The Complexity of Light and Shade also reveal, she used a range of photographic techniques, from velvety, detailed platinum prints to painterly gum bichromate photographs, as in her 1907 portrait of the painter John Sloan (Fig.
The resulting effects are visually similar to the soft-focus and richly textured carbon and gum bichromate prints produced at the end of the 19th century by pictorialist photographers such as Robert Demachy (1859-1936), Frank Eugene (1865-1936), and Anne Brigman (1869-1950), who enlisted painterly techniques to elevate the medium of photography into the realm of fine art.
Along with Hans Watzek and Hugo Henneberg, he experimented with the Lumiere auto-chrome process, as well as with gum bichromate printing, in which the contrast of light can be regulated to dissolve the clarity of the image and alter its luminosity.
All of these prints are handmade using traditional and very time-consuming methods--such as platinum, gum bichromate, gum over platinum, bromoil and oil print processes--each requiring the skills of an accomplished photographer and artist.
The concentration of VFA was determined with gas-liquid chromatography (Kochanov and Tulupov 1979); the concentration of cellulose after removal of lignin, hemicelluloses, and other substances was determined by oxidation with bichromate potassium in sulphoacid solution to carbonic acid and water.
In these patents he outlined a process to expose a photograph onto a metal plate coated with potassium bichromate in order to etch the plate and create a printable surface.
Japanese photographers now also turned away from documenting nature and began manipulating prints using gum bichromate and bromoil pigment to achieve soft-focused, pictorial effects.
Using the latest scientific techniques, including fluorine measurement and radiocarbon dating, the team proved that the mandible of Eoanthropus Dawsoni had been deliberately stained with potassium bichromate and the teeth filed down.
Invented in the 1850s, gum bichromate printing was popularized at the end of the 19th century by the Photo-Secessionists, who liked how the images resembled tonal watercolors and charcoal drawings.
The original Osmose patents described a preservative process using sodium fluoride, potassium bichromate, sodium arsenate, and dinitrophenol.
Individual fecal samples were then placed in a 2% solution of potassium bichromate and left at room temperature for 72 hours with free access to air, before being sealed in their respective containers (Kheysin, 1972).
Those compounds include ammonia, ammonium salt4 alkylamine and/or one of their salts, hydroxylamine and/or their salts, hydrogen halide, acetoacetate, malonate, bromosuccinimide, pyridinium bromide, dioxane perbromide, permanganate, bichromate, chromate, selenium dioxide, alkali sulfite or ammonium sulfite, alkali or ammonium hydrogen sulfite or disulfite, or a thio compound and also ozone.