Nessler's Reagent
- CAS No.
- 7783-33-7
- Chemical Name:
- Nessler's Reagent
- Synonyms
- Nessler;potassium tetraiodomercurate;NESSLER REAGENT;nessler’s;nessler'S;MAYER'S REAGENT;NESSLERS REAGENT;NESSLER'S REAGENT;NESSLER'S REAGENT;AMMONIA NITROGEN 2
- CBNumber:
- CB2481117
- Molecular Formula:
- HgI4K2
- Molecular Weight:
- 786.4
- MDL Number:
- MFCD00049656
- MOL File:
- 7783-33-7.mol
| Melting point | 120-127 °C(lit.) |
|---|---|
| Boiling point | 105°C |
| Density | 1.16 g/mL at 20 °C |
| Flash point | >230 °F |
| solubility | very soluble in H2O; soluble in ethanol,ethyl ether, acetone |
| form | Liquid |
| color | Yellow to orange |
| Specific Gravity | 1.097 |
| Odor | Odorless |
| Water Solubility | Soluble in water. |
| Sensitive | Hygroscopic |
| Merck | 13,7773 |
| Exposure limits |
ACGIH: TWA 0.025 mg/m3 (Skin) NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 |
| Stability | Stable, but light sensitive. Incompatible with strong oxidizing agents. |
| InChIKey | OPCMAZHMYZRPID-UHFFFAOYSA-J |
| FDA UNII | 7N83S6IU0F |
| EPA Substance Registry System | Potassium mercuric iodide (7783-33-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     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,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 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28521000 | |||||||||
| Hazardous Substances Data | 7783-33-7(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
Nessler's Reagent price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 72190 | Nessler’s reagent for qualitative det. of ammonia and ammonium compounds | 7783-33-7 | 500ml | $324 | 2022-05-15 | Buy |
| Alfa Aesar | 039307 | Mercury(II) potassium iodide | 7783-33-7 | 250g | $1068 | 2023-06-20 | Buy |
| GFS CHEMICALS | 49952 | MERCURICPOTASSIUMIODIDE | 7783-33-7 | 20g | $83.32 | 2021-12-16 | Buy |
| Usbiological | 241357 | Potassium tetraiodomercurate | 7783-33-7 | 25g | $174 | 2021-12-16 | Buy |
| GFS CHEMICALS | 49951 | MERCURICPOTASSIUMIODIDE | 7783-33-7 | 100g | $271.24 | 2021-12-16 | Buy |
Nessler's Reagent Chemical Properties,Uses,Production
Chemical Properties
light yellow liquid
Uses
Mercury(II) potassium iodide is used as a pharmaceutical intermediate. It is also used as reagents, chemical research and organic intermediates.
Uses
Nessler's reagent (K2[HgI4]) is used to detect the presence of ammonia, particularly in very small amounts.
Preparation
It is prepared by mixing 2g potassium iodide in 5ml water. To this solution, 3g of mercury (II) iodide is added, and the resulting solution is made to 20ml. Finally, 40g potassium hydroxide (30 %) is added to provide the alkaline base.
Definition
Nessler's Reagent is a periodometallate salt that is solution of mercuric iodide in potassium iodide. It contains a tetraiodomercurate(2-).
General Description
Mercuric potassium iodide, [solid] appears as 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.
Hazard
Highly toxic by ingestion, inhalation, and skin absorption.
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.
Safety Profile
A poison. Moderately toxic by skin contact and intraperitoneal routes. When heated to decomposition it emits very toxic fumes of Hg, K2O, and I-. See also MERCURY.
Nessler's Reagent Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21634 | 55 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10319 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| HONG KONG IPURE BIOLOGY CO.,LIMITED | 86 18062405514 18062405514 | ada@ipurechemical.com | CHINA | 3461 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 | 1026@dideu.com | China | 7724 | 58 |
| LEAPCHEM CO., LTD. | +86-852-30606658 | market18@leapchem.com | China | 43340 | 58 |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +undefined18621343501 | product@acmec-e.com | China | 33338 | 58 |
| Aladdin Scientific | +1-+1(833)-552-7181 | sales@aladdinsci.com | United States | 57505 | 58 |
| SHANGHAI KEAN TECHNOLOGY CO., LTD. | +8613817748580 | cooperation@kean-chem.com | China | 40066 | 58 |
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