chromic acid

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  • noun

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an unstable acid known only in solution and as chromate salts

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The 2 million [pounds sterling] project will look for alternatives to chromate epoxy primers, chromic acid anodising, the use of allochrome and hard chrome plating.
Preparation of Nano Silica Chromic Acid. A500 mL suction flask equipped with a constant-pressure dropping funnel and a gas inlet tube for conducting HCl gas over an adsorbing solution (i.e., water) was used.
Chromic acid bath is used in pickling and electropolishing.
Environment Agency Wales (EAW) said chemicals found at the unnamed site included hydrochloric acid, chromic acid, sulphuric acid and sodium hydroxide.
The adhesion of PMSQ films was improved on polymethylmethacrylate (PMMA), polycarbonate (PC), and PC/acrylonitrile butadiene styrene (ABS) by pretreating their surface with O2 plasma or chromic acid followed by surface grafting with trimethyl ethoxysilane (TMES).
A North Wales fire and rescue service spokeswoman said: "500 litres of sulphuric acid and chromic acid came out of containers into a bunded, metal, treatment area.
chlorine, caustic soda, perchlorates, persulphates, hypochlorite, chlorate, permanganate, bromate, fluoride, ferricyanide, chromic acid regeneration etc.
They investigated a commercial pretreatment on galvanized steel that gave corrosion resistance similar to that provided by zinc phosphate with a chromic acid rinse.
Industrial uses of hexavalent chromium compounds include chromate pigments in dyes, paints, inks, and plastics; chromates added as anticorrosive agents to paints, primers, and other surface coatings; and chromic acid electroplated onto metal parts to provide a decorative or protective coating.
Determination of total organic C in soils by an improved chromic acid digestion and spectrophotometric procedure.
Production of leather tanning products and chromic acid used in timber treatment and electro-plating was ceased as a result.
Typical CCA formulations are commonly prepared by first dissolving chromic acid in water and then adding copper oxide and arsenic acid as solids to the chromic acid solution.
They include cyanide, chromic acid and nickel sulphate -all potentially lethal if released into the atmosphere.
The effort included reducing the use of prohibitively hazardous materials (e.g., chromium, ethyl alcohol, methanol, chromic acid. and more) while employing energy-efficient, cost-effective, low-maintenance products.
Do not confuse Alodine with AMS-M-3171, Type VI, chromic acid brush-on treatment, which is used on magnesium.