Nessler's reagent

Name: Nessler's reagent
Brand: UZHP
SKU: reaktiv-nesslera

Nessler's reagent K2HgI4 • KOH or K2HgI4 • NaOH

Description

Nessler's Reagent K2HgI4• KOH or K2HgI4• NaOH Nessler's reagent is a solution in an alkaline medium of potassium tetraiodomercurate dihydrate, having the formula K2[HgI4]*2H2O. It is a pale yellow liquid. Under the influence of light, this chemical reagent begins to decompose, so it must be kept in a tightly sealed container, which should be stored in a cool place. It is important to remember that the substance contains mercury, making it toxic, and if the solution comes into contact with skin or mucous membranes, it causes severe irritation that can lead to general intoxication. In laboratory conditions, Nessler's reagent is also widely used in studies for the photometric determination and detection of NH3 at 436 nm (el 2.106). The reagent also has the ability to form mercury in metallic form, as a result of which it is widely used in the detection of alcohols and aldehydes, as well as in thin-layer and paper chromatography to identify chemical substances such as hydroxyamino acids. Nessler's reagent must be stored in a cool place in a dark-colored test tube with a tightly closed stopper. The substance should have no color tint. When storing, it is important to remember that the reagent contains mercury, which is dangerous to the human body. Application: in laboratory practice. , Nessler's Reagent TU 6-09-2089-77 Guaranteed shelf life 3 years. Editor: n7nv0w

Hazard
class

6.1

subclass

6162

classification code

Appearance

pale yellow solution, decomposing in light.

Application

Nessler's reagent is used for the qualitative detection of ammonia and guanidines – producing a bright red-brown precipitate, and for the detection of aldehydes, primary and secondary alcohols – producing a black precipitate. The substance is also used in the colorimetric determination of minimal ammonia content.

Quality indicators

ChDA (2638420122)

Color index

≤ 4

Sensitivity to NH4+ ion

withstands the test

Custom reagents

Custom assortment products

Aluminum compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Aluminum dichromate, aqueous	TU 6-09-02-50-88	Pure	2621260101
Aluminum metavanadate, 1-hydrate	TU 6-09-02-412-86	Pure	2621260061

Ammonium compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Ammonium hexachlorostannate (IV)	TU 6-09-02-186-85	High purity	2621160463
Ammonium hexachlorostannate (IV)	TU 6-09-02-186-85	Pure	2621160461
Ammonium iodate	TU 6-09-02-160-85	Pure	2621160201
Ammonium-vanadium (II) sulfate (2:1:2) 6-hydrate	LM 6-09-02-82-90		2621161037
Ammonium-cadmium iodide (2:1:4) 2-hydrate	TU 6-09-02-320-89	Pure	2621160241
Ammonium-cadmium sulfate (2:1:2) 6-hydrate	TU 6-09-02-264-89	High purity	2621160253
Ammonium-cadmium sulfate (2:1:2) 6-hydrate	TU 6-09-02-264-89	Pure	2621160251
Ammonium-magnesium sulfate (2:1:2) 6-hydrate	TU 6-09-02-270-88	Analytical grade	2621210042
Ammonium-zinc sulfate (2:1:2) 6-hydrate	TU 6-09-02-299-83	High purity	2621161003
Ammonium-zinc sulfate (2:1:2) 6-hydrate	TU 6-09-02-299-83	Pure	2621161001

Barium compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Barium bromate, 1-hydrate	TU 6-09-02-182-85	Pure	2621240101
Barium dichromate, 2-hydrate	TU 6-09-02-445-87	Pure	2621240131
Barium iodide, 2-hydrate	TU 6-09-1481-85	High purity	2621240183
Barium iodide, 2-hydrate	TU 6-09-1481-85	Pure	2621240181
Barium molybdate	TU 6-09-02-192-85	Pure	2621240241
Barium orthovanadate	TU 609-02-78-84	High purity	2621240603
Barium peroxide	TU 6-09-5295-86	Pure	2611330011
Barium peroxide	TU 6-09-5295-86	Analytical grade	2611330012

Vanadium compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Metavanadic acid	TU 6-09-02-128-85	High purity	2612290053
Metavanadic acid	TU 6-09-02-128-85	Pure	2612290051
Vanadium (III) oxide	TU 6-09-02-390-85	Pure	2611210101
Vanadium (IV) oxide	TU 6-09-02-243-88	Pure	2611210111
Vanadium (IV) oxide fluoride (1:1:2) 3-hydrate	TU 6-09-02-230-89	Pure	2622130021

Bismuth compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Bismuth (III) hydroxide	TU 6-09-02-155-85	Pure	2611490071
Bismuth (III) hydroxide	TU 6-09-02-155-85	Analytical grade	2611490072
Bismuth (III) hydrogentartrate, 2-hydrate	TU 6-09-02-197-86	High purity	2634520203
Bismuth (III) hydrogentartrate, 2-hydrate	TU 6-09-02-197-86	Pure	2634520201
Bismuth (III) dichromate oxide (2:1:2)	TU 6-09-02-297-88	Pure	2624240071
Bismuth (III) metaborate	TU 6-09-02-164-86	Pure	2624240041
Bismuth (III) oxalate, 4-hydrate	TU 6-09-02-296-88	Pure	2634220121
Bismuth (IV) oxide	TU 6-09-02-210-85	Pure	2611210171
Bismuth (IV) oxide	TU 6-09-02-210-85	Analytical grade	2611210172
Bismuth orthophosphate	TU 6-09-02-132-89	Pure	2624240261
Bismuth (III) sulfide	TU 6-09-02-255-87	Pure	2624240151
Bismuth (III) formate	TU 6-09-02-1-93	Pure	2634212241
Bismuth (III) chloride, 1-hydrate	TU 6-09-02-282-88	Special purity 13-3	2624240244
Bismuth (III) chloride, 1-hydrate	TU 6-09-02-392-85	High purity	2624240233
Bismuth (III) chloride, 1-hydrate	TU 6-09-02-392-85	Pure	2624240231
Bismuth (III) chloride	TU 6-09-02-189-86	High purity	2624240223

Iron compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Iron (II) bromide	TU 6-09-02-218-89	Pure	2622210071
Iron (III) bromide, 4-hydrate	LM 6-09-02-67-90		2622210087
Iron (III) copper (II) oxide (2:1:4)	TU 6-09-02-49-88	Pure	2611210261
Iron (III) nickel (II) oxide (2:1:4)	TU 6-09-02-277-93	Pure	2611211421
Iron (III) chromate, 1-hydrate	TU 6-09-02-236-88	Pure	2622210421

Heavy liquid KK-2.6

*Reagent name*	*NTD*	*Grade*	*OKP code*
Heavy liquid KK-2.6	TU 6-09-02-424-87	Pure	2638430011

Iodine compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Iodine (V) oxide	TU 6-09-5264-85	Pure	2611220031
Iodine (V) oxide	TU 6-09-5264-85	Analytical grade	2611220032

Cadmium compounds

*Reagent name*	*NTD*	*Grade*	*OKP code*
Cadmium bromide, 4-hydrate	TU 6-09-02-481-89	Pure	2623210071
Cadmium hexafluorosilicate, 6-hydrate	TU 6-09-02-209-85	Pure	2623210181
Cadmium hydroxide	TU 6-09-02-187-86	Pure	2611490111
Cadmium metavanadate	TU 6-09-02-215-92	Pure	2623210091
Cadmium metasilicate	TU 6-09-02-403-86	Pure	2623210171
Cadmium molybdate for single crystals	TU 6-09-02-358-89	High purity	2623210653
Cadmium pyrovanadate	TU 6-09-02-70-89	Pure	2623210521
Cadmium formate, 2-hydrate	TU 6-09-02-285-88	Pure	2634210571

Potassium Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Potassium heptamolybdate 10-hydrate	TU 6-09-02-52-88	Pure	2621130671
Potassium iodide for analysis of organic peroxides	TU 6-09-02-244-90	High Purity	2621130403
Potassium periodate	TU 6-09-02-364-99	Pure	2621130441
Potassium periodate	TU 6-09-02-364-99	Analytical Grade	2621130442
Potassium-cobalt (II) 10-vanadate (2:2:1) 16-hydrate	TU 6-09-02-24-85	Pure	2621131711
Potassium-copper iodate	TU 6-09-02-83-84	Pure
Potassium-copper (II) sulfate (2:1:2) 6-hydrate	TU 6-09-02-305-88	Pure	2621130631
Potassium metavanadate	TU 6-09-02-193-99	Pure	2621130191
Potassium-nickel (II) decavanadate (2:2:1) 17-hydrate	TU 6-09-02-25-87	Pure	2621131761
Potassium-nickel (II) sulfate (2:1:2) 6-hydrate	TU 6-09-02-304-88	High Purity	2621130773

Calcium Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Calcium bromate 1-hydrate	TU 6-09-02-278-93	Pure	2621220081
Calcium iodide hydrate	TU 6-09-02-188-85	Pure	2621220181
Calcium metavanadate 4-hydrate	TU 6-09-02-232-85	Pure	2621220091
Calcium orthovanadate	TU 6-09-02-447-87	High Purity	2621220673

Cobalt Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Cobalt (II) amidosulfate 4-hydrate	TU 6-09-02-61-88	Pure	2622220391
Cobalt (II) metavanadate hydrate	TU 6-09-02-258-89	Pure	2622220071
Cobalt molybdate for single crystals	TU 6-09-02-362-89	High Purity	2622220693
Cobalt chloride 6-hydrate	GOST 4525-77	Analytical Grade	2638420252
Cobalt chloride 6-hydrate	GOST 4525-77	Pure	2622220191

Magnesium Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Magnesium amidosulfate 3-hydrate	TU 6-09-02-179-86	Pure	2621210301
Magnesium metavanadate	TU 6-09-02-10-93	Pure	2621210633
Magnesium orthovanadate	TU 6-09-02-324-89	High Purity	2621210703

Copper Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Copper (I) bromide	TU 2622-591-00205087-2004	Pure	2622240221
Copper (I) bromide	TU 2622-591-00205087-2004	Analytical Grade	2622240222
Copper (II) bromide	TU 6-09-02-428-87	Pure	2622240091
Copper (II) iodate (paste)	TU 6-09-02-573-2000
Copper (II) orthovanadate 3-hydrate	TU 6-09-02-64-89	Pure	2622240081
Copper (I) sulfide	TU 6-09-02-555-95	Pure	2622240301

Sodium Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Sodium bismuthate	TU 6-09-02-449-87	Analytical Grade	2621120222
Sodium dihydrogen orthoperiodate	TU 6-09-02-276-88	Pure	2621121501
Sodium metavanadate 2-hydrate	TU 6-09-02-151-88	Pure	2621120191
Sodium metavanadate 2-hydrate	TU 6-09-02-151-88	Analytical Grade	2621120192
Sodium selenite	TU 6-09-17-209-88	Pure	2621120681

Nickel Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Nickel adipate	TU 6-09-02-315-89	Pure	2634220891
Nickel amidosulfate 4-hydrate electrolyte 55% solution	TU 6-09-02-554-99
Nickel (II) bromide	TU 6-09-02-257-87	Pure	2622230151
Nickel (II) hexafluorosilicate 6-hydrate	TU 6-09-02-432-87	Pure	2622230251
Nickel (II) iodate 4-hydrate	TU 6-09-02-199-85	Pure	2622230231
Nickel (II) iodide	TU 6-09-02-438-87	Pure	2622230171
Nickel (II) metasilicate hydrate	TU 6-09-02-148-89	Pure	2622230241
Nickel (II) perchlorate 6-hydrate	TU 6-09-02-118-86	Pure	2622230491
Nickel (II) formate 2-hydrate	LM 6-09-02-3-88	Pure	2634212257
Nickel (II) fluoride	TU 6-09-02-239-88	Pure	2622230551

Tin Compounds

*Reagent Name*	*NTD*	*Grade*	*OKP Code*
Tin (II) iodide	TU 6-09-02-146-85	Pure	2623230031
Tin (IV) iodide	TU 6-09-02-163-85	High Purity	2623230143
Tin (IV) iodide	TU 6-09-02-163-85	Pure	2623230141