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72190

Nessler′s reagent

for qualitative det. of ammonia and ammonium compounds

Synonym(s):

Potassium tetraiodomercurate – Potassium hydroxide solution

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About This Item

CAS Number:
7783-33-7
NACRES:
NA.21
PubChem Substance ID:
329763879
UNSPSC Code:
41113319
MDL number:
MFCD00049656
Form:
liquid
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form

liquid

Quality Level

100

quality

for qualitative det. of ammonia and ammonium compounds

specific analyte(s)

ammonium

technique(s)

photometry: suitable

impurities

potassium hydroxide, potassium tetraiodomercurate

density

1.16 g/mL at 20 °C

application(s)

environmental
food and beverages
general analytical

SMILES string

[K+].[K+].I[Hg--](I)(I)I

InChI

1S/Hg.4HI.2K/h;4*1H;;/q+2;;;;;2*+1/p-4

InChI key

OPCMAZHMYZRPID-UHFFFAOYSA-J

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.

Application

Nessler′s reagent has been used in determining ammonia in flow analysis regime using analytical spectrometry.

Other Notes

Reagent for the determination of ammonia
The method detection limit is 0.1 mg/L.
Reference: APHA 1975.

Disclaimer

For U.S. Customers: Contains mercury; Do not place in trash - dispose according to local, state, or federal laws.
may form little sediment upon storage

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Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A - STOT RE 2

target_organs

Kidney,Central nervous system

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCD2740
BCCC3064
BCCC2297
BCCB5542
BCBZ6872

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A novel optoelectronic detector and improved flow analysis procedure for ammonia determination with Nessler?s reagent.
Kolacinska, Kamila, and Robert Koncki.
Analytical Sciences, 30.10, 1019-1022 (2014)
E.A. Burns et al.
The Analytical Chemistry of Nitrogen and its compounds, 51-51 (1970)
M A El Ries et al.
Journal of pharmaceutical and biomedical analysis, 25(1), 3-7 (2001-03-29)
Ion-associate complexes of atropine sulphate (I), diphenhydramine HCl (II), tolazoline HCl (III) and levamisole HCl (IV) with potassium tetraiodomercurate were precipitated and their solubilities were studied as a function of pH, ionic strength and temperature. Saturated solutions of each ion-associate
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Global Trade Item Number

SKUGTIN
72190-500ML04061832856438