ChemicalBook > CAS DataBase List > Dimethylglyoxime

Dimethylglyoxime

Product Name
Dimethylglyoxime
CAS No.
95-45-4
Chemical Name
Dimethylglyoxime
Synonyms
Butane-2,3-dione dioxime;dimethyl-glyoxim;butanedione dioxime;Butane dioxime;biacetyldioxime;yoxime;Diactyldioxime;METHYL GLOXIME;(CH3)2C2(NOH)2;Diacetyl oxime
CBNumber
CB3668685
Molecular Formula
C4H8N2O2
Formula Weight
116.12
MOL File
95-45-4.mol
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Dimethylglyoxime Property

Melting point:
240-241 °C(lit.)
Boiling point:
217.15°C (rough estimate)
Density 
1.2829 (rough estimate)
refractive index 
1.4880 (estimate)
storage temp. 
Sealed in dry,Room Temperature
solubility 
Soluble in alcohol, acetone, ether
pka
pK1:10.60 (25°C)
form 
Powder
color 
White to off-white
Odor
Odorless
Water Solubility 
INSOLUBLE
Merck 
14,3246
BRN 
506731
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
JGUQDUKBUKFFRO-GGWOSOGESA-N
CAS DataBase Reference
95-45-4(CAS DataBase Reference)
NIST Chemistry Reference
2,3-Butanedione, dioxime(95-45-4)
EPA Substance Registry System
2,3-Butanedione, dioxime (95-45-4)
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Safety

Hazard Codes 
Xn,T,F
Risk Statements 
22-20/21/22-25-11
Safety Statements 
22-24/25-36-45
RIDADR 
UN 2926 6.1(4.1) / PGIII
WGK Germany 
3
RTECS 
EK2975000
F 
10
Hazard Note 
Harmful
TSCA 
Yes
PackingGroup 
III
HS Code 
29280090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H228Flammable solid

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P370+P378In case of fire: Use … for extinction.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
03858
Product name
Dimethylglyoxime
Purity
≥97.0% (TLC)
Packaging
100g
Price
$64.6
Updated
2024/03/01
Sigma-Aldrich
Product number
1.03062
Product name
Dimethylglyoxime
Purity
GR for analysis (reagent for nickel) ACS,Reag. Ph Eur
Packaging
100g
Price
$312
Updated
2024/03/01
Sigma-Aldrich
Product number
03858
Product name
Dimethylglyoxime
Purity
≥97.0% (TLC)
Packaging
500g
Price
$126
Updated
2024/03/01
TCI Chemical
Product number
D0729
Product name
Dimethylglyoxime
Purity
>98.0%(W)
Packaging
25g
Price
$28
Updated
2024/03/01
TCI Chemical
Product number
D0729
Product name
Dimethylglyoxime
Purity
>98.0%(W)
Packaging
500g
Price
$253
Updated
2024/03/01
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Dimethylglyoxime Chemical Properties,Usage,Production

Chemical Properties

Dimethylglyoxime is a white crystalline powder. Soluble in alcohol, ether, acetone and pyridine. Solubility in water 0.5g/l, insoluble in tolerate chloroform, toluene, xylene. It is one of the first selective organic reagents applied in analytical chemistry. It is an extraordinary sensitive and specific reagent for nickel. under appropriate conditions dimethylglyoxime is specific for nickel(II) and palladium(II), but it also forms coloured water-soluble complexes with iron(II), cobalt(II) and copper(II).

Uses

Dimethylglyoxime is specific for nickel(II) ions in ammoniacal solution if alkali tartrate is employed as masking agent to keep in solution the possibly interfering hydrolysing salts.

Uses

Dimethylglyoxime is used as nickel-specific complexing reagent; determination of palladium.

Uses

Detection and determination of Ni and its separation from Co and many other metals. Forms a scarlet red ppt with Ni even in dil solutions. Separation of Pd from Sn, Au, Rh, and Ir, also to detect Bi with which it forms a bright yellow color and ppt.

Application

Dimethylglyoxime is a chelate ligand that can be used as an antimicrobial agent. The compound binds to metals, such as iron and copper, which are found in wastewater and industrial effluents. It can also chelate metal ions that are present in the water supply. This property makes it an effective agent for removing heavy metals from water. Dimethylglyoxime has been shown to react with various metal ions by means of Langmuir adsorption isotherms and fluorescence spectrometry. When this reaction occurs, the compound forms a complex with the metal ion. The model system is a solution of it with sodium citrate and tetramethylammonium chloride (TMA). The reaction mechanism involves protonation and deprotonation of the ligand, which occurs when the pH is changed from acidic to basic conditions.

Reactions

Nickel cation reacts with dimethylglyoxime forms an insoluble red precipitate of nickel dimethylglyoxime.
Ni2+ + 2C4H8N2O2 → Ni(C4H7N2O2)2↓(red precipitate) + 2H+
Dimethylglyoxime reacts with ferrous sulphate and ammonium hydroxide forms a complex compound of iron and ammonium sulphate and water is formed.
FeSO4 + 2NH4OH + 2C4H8N2O2 → Fe(C4H7N2O2)2 + (NH4)2SO4 + 2H2O

General Description

Dimethylglyoxime (DMG) is a complexing ligand. Dimethylglyoxime forms a number of mixed ligand complexes with N-acetylglycine with metals such as VO(IV), Ni(II), Zn(II), Pd(II), Cd(II) and Pb(II). It is a useful reagent for the spectrophotometric determination of Co(II), Fe(II), Ni(II), Pd(II) and Re(VII).

Safety Profile

Poison by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.

Purification Methods

Crystallise it from EtOH (10mL/g) or aqueous EtOH. [Beilstein 1 III 3105.] TOXIC.

Dimethylglyoxime Preparation Products And Raw materials

Raw materials

2,3-Butanedione monoxime Congo red paper 2-Butanone Hydroxylamine-O-sulfonic acid Sodium bisulfite Sodium sulfonate

Preparation Products

1,4-DIAMINOBUTANE
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View Lastest Price from Dimethylglyoxime manufacturers

HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
Product
Dimethylglyoxime 95-45-4
Price
US $990.00-800.00/ton
Min. Order
1ton
Purity
99%
Supply Ability
5000
Release date
2024-08-19
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Dimethylglyoxime 95-45-4
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-28
HebeiShuoshengImportandExportco.,Ltd
Product
Dimethylglyoxime 95-45-4
Price
US $6.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
2000KG/Month
Release date
2024-08-06

95-45-4, DimethylglyoximeRelated Search:

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