Silver Bromide                                  
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  • Silver bromide (AgBr), a soft, pale-yellow, water insoluble salt well known (along with other silver halides) for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.
  • The salt can be found naturally as the mineral bromargyrite (bromyrite).
  • Although the compound can be found in mineral form, AgBr is typically prepared by the reaction of silver nitrate with an alkali bromide, typically potassium bromide.
  • As silver bromide is heated within 100 C of its melting point, an Arrhenius plot of the ionic conductivity shows the value increasing and "upward-turning." Other physical properties such as elastic moduli, specific heat, and the electronic energy gap also increase, suggesting the crystal is approaching instability.
  • Silver bromide crystals produced in all the polar aprotic solvent.
  • Photographic film consists of an emulsion of a light sensitive material, AgBr in gelatin, coated onto a transparent and flexible support.
  • The latent image formation from a light-initiated due to oxidation-reduction reaction of the Agbr on photographic film.
  • In order to remove the silver bromide from the photographic paper it must be converted into a soluble substance. This can be accomplished by addition of a substance which will form a strong complex with silver ions. Thiosulfate ion, is used to dissolve silver bromide by for the complex ion. If unwanted Agbr crystals are not removed, the resultant film will discolor after a few months.
  • A simple method of fabricating highly potent dual action antibacterial composites consisting of a cationic polymer matrix and embedded AgBr nano particles.
  • Silver Bromide nano particle composites having potent long-lasting antibacterial activity toward both gram-positive & gram-negative bacteria.
  • In the presence of hydroquinone (reductant), ultrafine crystalline suspensions of AgBr in a gelatine protection to obtain silver nano particles.
Introduction
  • Silver Bromide.
  • General Information.
  • Properties.
  • Structure of singly charged AgBr.

Process

  • Morphology of silver bromide crystals produced at presence of N,N-dimethylformamide.
  • Tabular silver halide crystals prepared by controlled Ostwald growth in the presence of dimethyl sulphoxide.
  • Obtaining tabular silver bromide crystals using double-jet method.

Raw Materials

  • Potassium Bromide.
  • Silver Nitrate.
  • Dimethyl Sulfoxide.

MSDS

  • Silver Bromide MSDS.
  • Safety Data Sheet of AgBr.
  • Material Safety sheet of Silver Bromide.
  • MSDS of 99.9% Silver Bromide.
  • AgBr Material Safety Data Sheet.

Study

  • Factors influencing the rate of sensitization & maximum sensitivity of an iridium surface sensitized silver bromide emulsion.
  • An investigation into the potential of ionic silver as a Wood Preservative.
  • New method for the production of silver halide tabular crystals.
  • Study of the chemical oxidation of silver crystals immobilized on platinum & on quartz.
  • The kinetics of Silver Bromide film formation on the silver anode.
  • Investigation of Silver particles forming on surface of silver bromide micro-crystals.

Company Profile & Consultants

  • Company from Ahmedabad.
  • Company from China.
  • Company from India.
  • Company from Mumbai.
  • Consultancy from America.
  • Consultancy from New York.
  • Consultancy from United Kingdom.

Patents

  • Silver halide photographic materials comprising silver bromide having triangular tabular crystals.
  • Silver Bromide emulsions of narrow grain size distribution & process for their preparation.
  • Processing high silver bromide color negative photographic films using a peroxide bleaching composition.
  • Preparation & use of a dimethylamine  AgBr complex as a single source precursor for nucleation of AgBr crystals.
  • Low methionine gelatino-peptizer tabular grain AgBr and bromoiodide emulsions & processes for their preparation.
  • Rapid image presentation method employing
    AgBr tabular grain photographic elements.
  • Solid electrolyte electrolytic cell induring silver bromine therein.
  • Method of Preparing tabular grains rich in silver bromide.
  • Anodized aluminum photographic plates with silver bromide in pores of oxide layer.

Suppliers

  • China Suppliers.
  • Suppliers from Europe.
  • India Suppliers.
  • Suppliers from United States.

Applications

  • Hydroquinone Synthesis of Silver Nano particles form AgBr suspensions.
  • Uses of Silver Bromide in Photographic Film.
  • Stages in Production of Radiograph.
  • Black and White Photography.
  • Silver Bromide Nano particles/Polymer Composites: Dual Action tunable antimicrobial materials.

Report

  • Synthesis and characterization of AgBr nano composites by templated amphiphilic comb polymer.
  • Radiation litmus Paper.
  • Radiographic film for megavoltage beam dosimetry.

 

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