Chromium: Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6.Chromate ester: A chromate ester is a chemical structure that contains a chromium atom (symbol Cr) in a +6 oxidation state that is connected via an oxygen (O) linkage to a carbon (C) atom. The Cr itself is in its chromate form, with several oxygens attached, and the Cr–O–C attachment makes this chemical group structurally similar to other ester functional groups.Sodium chromateBrightray: Brightray is a nickel-chromium alloy that is noted for its resistance to erosion by gas flow at high temperatures. It was used for hard-facing the exhaust valve heads and seats of petrol engines, particularly aircraft engines from the 1930s onwards.Picolinic acidGas metal arc weldingSun printing: Sun printing may refer to various printing techniques which use sunlight as a developing or fixative agent.Imperial Leather: Imperial Leather is a brand of soaps, toiletries and healthcare products manufactured by PZ Cussons. The brand originates in Britain and is now available in a number of other countries including Australia, Denmark, Germany, India, Indonesia, Iran, Kenya, Pakistan, South Africa, New Zealand and the United Arab Emirates.Chrome platingAtomic absorption spectroscopy: Atomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state.Phytoextraction process: Phytoextraction is a subprocess of phytoremediation in which plants remove dangerous elements or compounds from soil or water, most usually heavy metals, metals that have a high density and may be toxic to organisms even at relatively low concentrations.http://www.Nickel electroplating: Nickel electroplating is a technique of electroplating a thin layer of nickel onto a metal object. The nickel layer can be decorative, provide corrosion resistance, wear resistance, or used to build up worn or undersized parts for salvage purposes.Cobalt(II) hydroxideSurgical stainless steel: Surgical stainless steel is an informal term which refers to certain grades of stainless steel that are used in biomedical applications. The most common "surgical steels" are austenitic 316 stainless and martensitic 440 and 420 stainless steels.List of Superfund sites in the United States: These are lists of Superfund sites in the United States, designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980. Superfund sites are polluted locations requiring a long-term response to clean up hazardous material contaminations.PyromorphiteMetals in medicine: Metals in medicine are used in organic systems for diagnostic and treatment purposes. Inorganic elements are also essential for organic life as cofactors in enzymes called Metalloproteins.Trace metal: Trace metals are metals that can be present in animal and plant cells and tissue and are a necessary part of nutrition and physiology. Ingestion of, or exposure to, excessive quantities can be toxic.Occupational hygiene: Occupational (or "industrial" in the U.S.