Silver Nitrate Manufacture
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Silver is an ore which is mined from the earth. Silver is a naturally occurring substance and has a history dating back to biblical times and earlier. Silver Nitrate can be made by reacting the metal Silver, in the form of Silver bullion or Silver foil, with Nitric Acid. This process is performed under fume extraction due to the Toxicity of the fumes released.
Silver Nitrate is also known as Silver Salt and has a chemical formula of AgNO3. Silver Nitrate is often supplied in a range of different strengths or 'molarities'. The 'molarity' of Silver Nitrate is standardised and certified by the manufacturer.
Silver Nitrate has a great number of uses. For example, it can be used to test for Chlorides by Volhard's titration method. Marine companies often use Silver Nitrate to check for contamination of seawater in dockside areas and in ships. Silver Nitrate is also commonly used for silvering glass to form a mirror.
Silve Nitrate has some antiseptic properties and can be used for wound dressings due to its sterilisation effects. Silver Nitrate is also used to coat medical catheters to reduce the risk of potential infection. However, the price of Silver Nitrate is closely linked to the price of Silver bullion and for this reason, Silver Nitrate costs can change from one day to the next.
Silver Nitrate is extremely soluble as solid Silver Salt. Very high quality water must be used when making a solution of Silver Nitrate, for example Deionized Water or Distilled Water. Even the slightest trace of Chlorine in the water will turn the whole solution black in colour. Solutions of Silver Nitrate should be stored in opaque containers away from light sources, including sunlight. Solid Silver Nitrate Salts will also turn black if allowed to come into contact with any Chlorides. Silver Salts must be kept dry.
Silver Nitrate is extremely light-sensitive and the material is widely used in photography. Silver Nitrate may be sold as Photographic Grade Silver Nitrate which is a grade of extremely high analytical quality. General technical grade solutions are not usually available.
The Regulations governing the classification of Silver Nitrate change on 1 December 2010. Prior to this date, Silver Nitrate is classified under the CHiP Regulations which stand for 'Chemicals (Hazard Information and Packaging) for Supply Regulations 2009'. After this date, the Regulations governing the classification of Silver Nitrate are the CLP Regulations (EC) No 1272/2008. Full details of the differences between these two Regulations and the impact this has on the reclassificastion of Silver Nitrate after 1 December 2010, can be found on the Silver Nitrate Labelling pagesof this website.
Silver Nitrate is classified as Hazardous for Transport and must be shipped under UN No 1493 as a Packing Group II Substance. The Class if 5.1, Oxidising Substances, with a Hazard Symbol being a yellow diamond and black burning 'O'.
Silver Nitrate has a Limited Quantity of 500g (LQ 11) for transport meaning that up to 500g can be carried without full ADR transport rules; only a white diamond with the UN No is needed.
For further information on Silver Nitrate Labelling, Silver Nitrate Hazards, Silver Nitrate Safety and Transporting Silver Nitrate, please refer to the various pages of this website.
http://www.silver-nitrate.co.uk/silver-nitrate-manufacture | Saved Thursday, November 17th, 2011 - 11:39 AM