Nessler’s reagent
SIAL/72190 - for qualitative det. of ammonia and ammonium compounds
Synonym: Potassium tetraiodomercurate – Potassium hydroxide solution
CAS Number: 7783-33-7
MDL Number: MFCD00049656
Product Type: Chemical
| application(s) | environmental food and beverages general analytical |
| density | 1.16 g/mL at 20 °C |
| form | liquid |
| impurities | potassium hydroxide |
| potassium tetraiodomercurate | |
| InChI | 1S/Hg.4HI.2K/h;4*1H;;/q+2 |
| InChI key | OPCMAZHMYZRPID-UHFFFAOYSA |
| quality | for qualitative det. of ammonia and ammonium compounds |
| Quality Level | 100  |
| SMILES string | [K+].[K+].I[Hg--](I)(I)I |
| specific analyte(s) | ammonium |
| technique(s) | photometry: suitable |
| Application: | Nessler’s reagent has been used in determining ammonia in flow analysis regime using analytical spectrometry. |
| Caution: | may form little sediment upon storage |
| General description: | Nessler’s reagent is widely used in determination of ammonium compounds. It can be prepared using anhydrous mercuric iodide and anhydrous potassium iodide. It can be prepared from potassium tetraiodomercurate dissolved in potassium hydroxide. |
| Other Notes: | Reagent for the determination of ammonia |
| Other Notes: | The method detection limit is 0.1 mg/L. Reference: APHA 1975. |
| Symbol |     GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H290 - H301 + H331 - H310 - H314 - H373 - H410 |
| Precautionary statements | P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P314 |
| Hazard Codes | T+,N |
| Risk Statements | 26/27/28-33-35-50/53 |
| Safety Statements | 26-28-36/37/39-45-61 |
| RIDADR | UN2922 - class 8 - PG 2 - EHS - basic - Corrosive liquids, toxic |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Density | 1.16 g/mL at 20 °C |
| UNSPSC | 41113319 |