Selenous acid (or selenious acid) is the chemical compound with the formula H2SeO3. Selenious acid has a low pH and must be prepared and used as an admixture in PN solutions; it is not for direct IV infusion; Additionally, consider final PN solution osmolarity to determine peripheral versus central administration; Solution with osmolarity of >900 mOsm/L must be … Despite these economies, the rapid expansion of the electronics industry in keeping with increased demand for electronic appliances is expected to increase the overall demand for gold in that industry. CAS Number: 7783-08-6. Instead, selenic acid may also be prepared by the oxidation of selenous acid … Oxidizes many organic substances. The metal is completely recyclable and is a vital component in many medical, industrial and electrical applications. Although it has few uses, its derivative sodium selenate is used in the production of glass and animal feeds. Selenic Acid Uses. Selenic acid is a strong dibasic acid with the formula H2SeO4. Learn more about S: Selenic Acid Sulfuric Acid on GlobalSpec. Selenium dioxide is prepared by oxidation of selenium by burning in air or by reaction with nitric acid or hydrogen peroxide, but perhaps the most convenient preparation is by the dehydration of selenous acid. Selenium Injection containing selenious acid 65.4 mcg/mL (equivalent to elemental selenium 40 mcg/mL). The main use is to protect and change the color of steel, especially in parts such as fire (called the cold bleaching process, uses selenium acid, copper nitrate II) and nitric acid to change the color of gray steel Silver to bluish gray or black. This compound has been researched well and it has been found that there are multiple uses for the compound. Other . Reacts exothermically with many reducing agents including hydroiodic acid, sulfurous acid, sodium hyposulfite, hydroxylamine salts, hydrazine salts, hypophosphorous acid, phosphorous acid [Merck]. This acid may be dehydrated to TeO 3 by heating. INTRODUCTION A. It is one of the least active metals chemically; it does not tarnish or oxidise in air, is unaffected by temperature change and is inert to all strongly alkaline solutions and to all pure acids, except. It is well known that concentrated selenic acid is able to oxidize even noble metals, and in fact Mitscherlich was the first who reported this on the example of gold as early as 1827. Liquid-phase oxidation accompanied by skeletal rearrangement of acetophenone and acetone by hydrogen peroxide in the NACRES NA.22 Other . SELENIC ACID S:010 SYNONYMS: ACIDE SELENIQUE (French); ACIDO SELENICO (Spanish); EINECS No. Selenic acid, H 2 SeO 4, has been obtained by the oxidation of selenous acid with strong oxidizing agents. Significance and Uses Selenium has been used in … Solvents for Gold Gold is dissolved by only one single acid-selenic acid. Radioactive 198Au, with a half-life of 2.7 days is increasingly important for medical diagnosis and radiation therapy, and as a tracer in industrial applications such as monitoring sediment movement on the sea floor. It is a very strong acid. Gold alloys are used in industrial applications such as electroplating, granulation, pressing and lamination to keep costs down and make the product harder. NO. Selenious acid has a molecular weight of 128.97 g/mol and a formula of H 2 SeO 3. Concentrated selenic acid reacts with gold to form gold selenite at high temperature. Uses. Related pages Sodium selenite It is an oxoacid of selenium, and its structure is more accurately described as (HO)2SeO2. The extraordinarily high reflective powers of the metal are relied upon in the shielding that protects spacecraft and satellites from solar radiation. Selenic acid solution. Un amestec de acid selenic și acid clorhidric poate dizolva aurul și platina. Uses of gold for industrial and decorative purposes include brazing alloys, decorative plating, liquid gold for ceramics, rolled gold for fountain pens and gold used in the production of industrial laboratory chemicals. Selenic acid is used as a specialized oxidizing agent. The reactions can generate dangerously large amounts of heat in small spaces. Selenic acid reacts with barium salts to precipitate BaSeO 4, analogous to the sulfate. One of the methods includes oxidising selenium dioxide with hydrogen peroxide. SELENIC ACID, LIQUID reacts exothermically with chemical bases (for example: amines and inorganic hydroxides) to form salts. Its chemical formula is H2SeO4. It is the principal oxoacid of selenium; the other being selenic acid. Acide sélénique composé chimique. Properties of radiant energy unique to gold have led to the development of efficient energy reflectors for infra-red heaters and cookers and for focusing and heat retention in metallurgical processing. 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