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Nessler Reagent, Chem-Lab
Used to detect ammonia. Nessler Reagent, Chem-Lab is a solution of potassium iodide and mercury chloride/mercury iodide, plus sodium hydroxide in water. It is used for qualitative determination of ammonia and ammonium compounds.
Brand: Chem Lab CL0214180500
Additional Details : Weight : 0.57500kg Transport : UN number : 2922 Chem class : 8 Pack group : II
Quantity | 500mL |
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Description
Nessler reagent (K2HgI4) is a solution prepared by combining sodium hydroxide and potassium iodide with mercuric chloride or mercury iodide. When reacted with gaseous ammonia, it produces brown fumes. When passed through a solution of ammonia, it produces a dirty brown precipitate.Chemical Identifiers
7783-33-7 | |
786.406 | |
nessler's reagent, nessler reagent, mayer's reagent, channing's solution, caswell no. 695, potassium iodomercurate, mercury ii potassium iodide, mercury potassium iodide, potassium mercuric iodide, mercuric potassium iodide | |
CHEBI:51568 | |
[K+].[K+].I[Hg-2](I)(I)I |
HgI4K2 | |
OPCMAZHMYZRPID-UHFFFAOYSA-J | |
24542 | |
dipotassium;tetraiodomercury(2-) |
Specifications
Mercuric potassium iodide | |
100°C | |
KI-HgI2-NaOH | |
OPCMAZHMYZRPID-UHFFFAOYSA-J | |
dipotassium;tetraiodomercury(2-) | |
24542 | |
786.40g/mol | |
Odorless | |
Yellow | |
>12 |
7783-33-7 | |
HgI4K2 | |
nessler's reagent, nessler reagent, mayer's reagent, channing's solution, caswell no. 695, potassium iodomercurate, mercury ii potassium iodide, mercury potassium iodide, potassium mercuric iodide, mercuric potassium iodide | |
[K+].[K+].I[Hg-2](I)(I)I | |
786.406 | |
CHEBI:51568 | |
Liquid | |
Water Soluble | |
0°C | |
500mL |
Safety and Handling
- Nessler reagent
Signal Word
- Danger
Hazard Category
- Acute toxicity Category 1
- Acute toxicity Category 2
- Acute toxicity Category 3
- LONG-TERM AQUATIC HAZARD Chronic 1
- Skin corrosion/irritation Category 1 A
- Specific target organ toxicity after repeated exposure Category 2
Hazard Statement
- H301-Toxic if swallowed.
- H310-Fatal in contact with skin.
- H314-Causes severe skin burns and eye damage.
- H330-Fatal if inhaled.
- H373-May cause damage to organs.
- H410-Very toxic to aquatic life with long lasting effects.
Precautionary Statement
- P260-Do not breathe dust/fume/gas/mist/vapours/spray.
- P273-Avoid release to the environment.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P284-¢In case of inadequate ventilation! wear respiratory protection.
- P301+P310-IF SWALLOWED: Immediately call a POISON CENTER/doctor /
- P302+P352-IF ON SKIN: Wash with plenty of water/soap.
Supplemental information
- MIXTURE LIST-Contains : potassium iodide, mercury iodide, sodiumhydroxide