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Description
Method
All gold ions are oxidized to gold(III) ions by an oxidizing agent. In sulfuric solution these react with rhodamine B to form a red-violet complex that is extracted and subsequently determined photometrically. Without the addition of the oxidizing agent (reagent Au-1) only gold(III) is measured.
| Safety Information according to GHS | |
|---|---|
| Hazard Pictogram(s) |    |
| Precautionary Statement(s) | P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking. P240: Ground/bond container and receiving equipment. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. |
| Signal Word | Danger |
| Storage class | 5.1 B Oxidising substances |
| WGK | WGK 1 slightly hazardous to water |
| Safety Information | |
|---|---|
| Hazard Symbols |  Corrosive Flammable |
| Storage and Shipping Information | |
|---|---|
| Storage | Store at +15°C to +25°C. |
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