Silver Nitrate Labelling
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Silver Nitrate has a chemical formula of AgnO3 and appears as a white solid with a molar mass of 169.87gmoL -1. Silver Nitrate has a Boiling Point of 444 degrees Centigrade and a Melting Point of 212 degrees Centigrade.
So far as Silver Nitrate labelling is concerned, Silver Nitrate is classified as a Corrosive and Oxidising Substance which is Harzardous to the Environment. The EC Number of Silver Nitrate is 231-853-9 whilst the CAS Number is 7761-88-8.
The classifications governing Silver Nitrate labelling are known as CHiP Regulations, which stands for 'Chemicals (Harzard Information and Packaging) for Supply Regulations 2009' and these apply until 1 December 2010 in their own right for substances. Silver Nitrate CHiP classifications are:-
- Oxidising; O; R8: Contact with combustible material may cause fire
- Corrosive; C; R34: Causes burns
- Hazardous to the Environment; N; R50/53: Very Toxic to aquatic organisms, may cause long term adverse effects in the aquatic environment
However, from 1 December 2010, the regulations governing the labelling of Silver Nitrate change to become the CLP Regulations (EC) Number 1272/2008. Under these new regulations, the classification of Silver Nitrate is as follows:-
- Skin Corrosion Category 1B; H314; Causes severe skin burns and eye damage
- Hazardous to the aquatic environment - Acute Hazard Cat.1
- Hazardous to the aquatic environment - Chronic Hazard Cat.1
- H40; Very Toxic to aquatic life with long lasting effects
Both of these classifications must be shown on an SDS Sheet (Safety Data Sheet) until 1 June 2010, after which time only CLP Regulations information needs to be indicated.
Label symbols according to CHiP Regulations appear black symbols in an orange box, whereas those from CLP Regulations take the form of black symbols in a square set on a point surrounded by a red border. These will be known as Hazard Pictograms. The Risk Phrases (R) from CHiP will be replaced by Hazard Statements (H). In a similar manner, Safety Phrases (S) will be replaced by Precautionary Statements (P). The label will carry a Signal Word - 'Danger'.
- Symbols are as follows:-
- Oxidising - A burning 'O'
- Corrosive - A Corroding hand and surface
- Environmentally Hazardous - Dead fish and a tree
Silver Nitrate has the following toxicological properties:-
- Inhalation; irritation of the mucous membranes, coughing
- Skin contact; burns. Will cause the skin to darken on exposed areas and caus burns after sustained contact
- Eye contact; can cause serious burns with possible blindness
- Ingestion will cause burns to the throat, mouth, oesophagus and gastrointestinal tract; large amounts may even be fatal
- The substance is very soluble in water and will spread in water systems.
The Environment Agency or other regulatory body should be notified in the event of a large spill, whether to land or to water. Where Silver Nitrate is suspected of entering foul drains, the local water treatment compny should be informed when the amounts are sufficient to present a hazard.
For further information on transporting Silver Nitrate, Silver Nitrate Hazards and Silver Nitrate Safety, please refer to the relevant pages of this website.
http://www.silver-nitrate.co.uk/silver-nitrate-labelling | Saved Thursday, November 17th, 2011 - 11:39 AM