72190

Nessler′s reagent

for qualitative det. of ammonia and ammonium compounds

• Synonim(y): Potassium tetraiodomercurate – Potassium hydroxide solution
• Numer CAS: 7783-33-7
• NACRES: NA.21
• PubChem Substance ID: 329763879
• UNSPSC Code: 41113319
• MDL number: MFCD00049656
• Form: liquid

Właściwości

• 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

Opis

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

The method detection limit is 0.1 mg/L.
Reference: APHA 1975.

Reagent for the determination of ammonia

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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Informacja o środkach bezpieczeństwa

• pictograms: GHS06,GHS08,GHS05,GHS09
• signalword: Danger
• hcodes: H290,H301 + H331,H310,H314,H373,H410
• pcodes: P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P314
• 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
• Klasa składowania: 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