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CAS NO.7783-33-7
| NESSLER'S REAGENT Basic information |
| Product Name: | NESSLER'S REAGENT |
| Synonyms: | POTASSIUM TETRAIODOMERCURATE(II);POTASSIUM MERCURY IODIDE;POTASSIUM MERCURIC IODIDE;NESSLER'S SOLUTION;NESSLER REAGENT;NESSLER REAGENT, APHA;NESSLER REAGENT, FOLIN-WU;NESSLER REAGENT, FOLIN-WU, MODIFIED |
| CAS: | 7783-33-7 |
| MF: | HgI4K2 |
| MW: | 786.4 |
| EINECS: | 231-990-4 |
| Product Categories: | Inorganics |
| Mol File: | 7783-33-7.mol |
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| NESSLER'S REAGENT Chemical Properties |
| Melting point | 120-127 °C(lit.) |
| density | 1.16 g/mL at 20 °C |
| Fp | >230 °F |
| Merck | 13,7773 |
| Stability: | Stable, but light sensitive. Incompatible with strong oxidizing agents. |
| Safety Information |
| Hazard Codes | T,N,T+ |
| Risk Statements | 26/27/28-33-35-51/53-52/53-23/24/25-48/21/22-25-50/53-68-24/25 |
| Safety Statements | 45-36/37-61-36/37/39-28-26-60-13 |
| RIDADR | UN 3287 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | OU9670000 |
| F | 8-30 |
| HazardClass | 6.1 |
| PackingGroup | II |
| MSDS Information |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| ALFA | English |
| NESSLER'S REAGENT Usage And Synthesis |
| Chemical Properties | light yellow liquid |
| General Description | Odorless yellow crystals. Crystallizes with either one, two or three molecules of water. Soluble in water and denser than water. Commercially available in the anhydrous form. Highly toxic by ingestion, inhalation, and skin absorption. |
| Air & Water Reactions | Deliquescent. Very water soluble. |
| Reactivity Profile | MERCURIC POTASSIUM IODIDE is incompatible with acetylene, ammonia, chlorine dioxide, azides, calcium (amalgam formation), sodium carbide, lithium, rubidium, copper . NESSLER'S REAGENT behave in aqueous solution as a weak acid. |
| Health Hazard | Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. |
| Fire Hazard | Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways. |
| NESSLER'S REAGENT Preparation Products And Raw materials |
| Raw materials | Nitric acid-->Potassium iodide-->MERCURY |
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