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Merck
CN

72190

Nessler 试剂

for qualitative det. of ammonia and ammonium compounds

别名:

四碘合汞酸钾 - 氢氧化钾 溶液

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关于此项目

化学文摘社编号:
7783-33-7
NACRES:
NA.21
PubChem Substance ID:
329763879
UNSPSC Code:
41113319
MDL number:
MFCD00049656
Form:
liquid

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InChI key

OPCMAZHMYZRPID-UHFFFAOYSA-J

SMILES string

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

InChI

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

form

liquid

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

Quality Level

100

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General description

奈斯勒试剂广泛用于测定铵化合物。可以使用无水碘化汞和无水碘化钾制备。可以由溶解在氢氧化钾中的四碘酸钾制备。

Application

奈斯勒试剂已用于流动分析方案中分析光谱法测氨。

Other Notes

方法检出限为0.1 mg/L。
参考文献: APHA 1975。
用于氨测定的试剂

Disclaimer

存放时可能形成少量沉淀
对于美国客户：本品含汞。废弃后切勿放入垃圾桶，须按照地方、州或联邦法律处置。

signalword

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

存储类别

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

历史批次信息供参考:

分析证书(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)
S J Lambert et al.
Acta crystallographica. Section D, Biological crystallography, 55(Pt 5), 1048-1051 (1999-04-27)
Intact histone octamers, produced by a new method quickly and in bulk, were crystallized in KCl/phosphate, and the X-ray data were analysed to 2.15 A, confirming a P65 space group. This environment preserves the high-resolution structure of the octamers and
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
Santosh Kumar Verma et al.
Journal of AOAC International, 90(4), 1180-1190 (2007-09-01)
This paper presents development of a simple, rapid, and precise analytical method for determination of sulfur dioxide in ambient air by a gas to solid-phase conversion method. Sulfur dioxide is determined in the form of sulfite (SO3(2-)) because the absorbing
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