Manufacture of Lab and industrial chemical materials

Jul 23, 2013
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Producer of supra-pure Silver Nitrate

   Minar trading co. is able to produce more than 180 different mineral and industrial chemical materials with high quality; We are able to work with you in any quantity and qualities.

   Able to produce chemicals with different packages, qualities, as your desire and send all around the world. you just need to contact us and get any information you need.

Silver Nitrate 99.95-100 %

   Manufacture of supra-pure Silver Nitrate 99.95 - 100 % purity in any quantity for world consumption. for analyses click SILVER NITRATE

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Some of Silver compounds

   1) Silver Nitrate (AgNo₃) : a colorless combination, highly soluble, essentially toxic and simply get rebound to metallic silver.

   2) Silver chloride (AgCl) : white insoluble compound, get dissolved in ammonium hydroxide and form ions complexes

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Discovery

   Albertus Magnus, in the 13th century, documented the ability of nitric acid to separate gold and silver by dissolving the silver. Magnus noted that the resulting solution of silver nitrate could blacken skin. Its common name at the time was nitric acid silver.

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Uses : Precursor to other silver compounds

   Silver nitrate is the least expensive salt of silver; it offers several other advantages as well. It is non-hygroscopic, in contrast to silver fluoroborate and silver perchlorate. It is relatively stable to light. Finally, it dissolves in numerous solvents, including water. The nitrate can be easily replaced by other ligands, rendering AgNO₃ versatile. Treatment with solutions of halide ions gives a precipitate of AgX (X = Cl, Br, I). When making photographic film, silver nitrate is treated with halide salts of sodium or potassium to form insoluble silver halide in situ in photographic gelatin, which is then applied to strips of tri-acetate or polyester. Similarly, silver nitrate is used to prepare some silver-based explosives, such as the fulminate, azide, or acetylide, through a precipitation reaction.Treatment of silver nitrate with base gives dark grey silver oxide

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Uses : Organic synthesis

   Silver nitrate is used in many ways in organic synthesis, e.g. for deprotection and oxidations. Ag+ binds alkenes reversibly, and silver nitrate has been used to separate mixtures of alkenes by selective absorption. The resulting adduct can be decomposed with ammonia to release the free alkene

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Uses : Biology

   In histology, silver nitrate is used for silver staining, for demonstrating reticular fibers, proteins and nucleic acids. For this reason it is also used to demonstrate proteins in PAGE gels. It can be used as a stain in scanning electron microscopy

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Uses : Medicine

   Silver salts have antiseptic properties. Until the development and widespread adoption of antibiotics, dilute solutions of AgNO₃ used to be dropped into newborn babies' eyes at birth to prevent contraction of gonorrhea from the mother. Eye infections and blindness of newborns was reduced by this method; incorrect dosage, however, could cause blindness in extreme cases. This protection was first used by Credé in 1881. Fused silver nitrate, shaped into sticks, was traditionally called "lunar caustic". It is used as a cauterizing agent, for example to remove granulation tissue around a stoma. General Sir James Abbott noted in his journals that in India in 1827 it was infused by a British surgeon into wounds in his arm resulting from the bite of a mad dog to cauterize the wounds and prevent the onset of rabies. Dentists sometimes use silver nitrate infused swabs to heal oral ulcers. Silver nitrate is also used by some podiatrists to kill cells located in the nail bed. Silver nitrate is also used to cauterize superficial blood vessels in the nose to help prevent nose bleeds.

   The Canadian physician C. A. Douglas Ringrose researched the use of silver nitrate for sterilization procedures on women. A specialist in obstetrics and gynaecology, Ringrose believed that the corrosive properties of silver nitrate could be used to block and corrode the fallopian tubes, in a process that he called "office tubal sterilization". The technique was ineffective; in fact at least two women underwent abortions. Ringrose was sued for malpractice, although these suits were unsuccessful.

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Uses : Disinfection

   Much research has been done in evaluating the ability of the silver ion at inactivating E. coli, a microorganism commonly used as an indicator for fecal contamination and as a surrogate for pathogens in drinking water treatment. Concentrations of silver nitrate evaluated in inactivation experiments range from 10–200 micrograms per liter as Ag⁺. The antimicrobial properties of silver was first observed thousands of years ago when silver containers were used to store water for preservation. Its disinfection ability has been scientifically studied for over a century.

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Safety

   As an oxidant, silver nitrate should be properly stored away from organic compounds. Despite its common usage in extremely low concentrations to prevent gonorrhea and control nose bleeds, silver nitrate is still very much toxic and corrosive. Brief exposure will not produce any immediate side effects other than the purple, brown or black stains on the skin; but upon constant exposure to high concentrations, side effects will be noticeable, which include burns. Long-term exposure may cause eye damage. Silver nitrate is known to be a skin and eye irritant.

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