Difference between revisions of "Dimethylglyoxime"

Latest revision as of 13:09, 21 July 2022

Description

Transparent triclinic crystals used in a colorimetric reagent to detect trace amounts of Nickel, Copper, Cobalt, or Bismuth (Odegaard et al 2000). Dimethylglyoxime reacts with soluble nickel to produce a bright red precipitate. Copper produces a blue precipitate, cobalt gives a brown, and bismuth forms a bright yellow.

Chemical structure

Synonyms and Related Terms

2,3-butanedionedioxime; 2,3-diisonitrosobutane; diacetyldioxime

Risks

Harmful by ingestion.
Contact may cause irritation.
Fisher Scientific; SDS

Physical and Chemical Properties

Insoluble in water. Soluble in alcohol, ether, pyridine, acetone.

Solution (0.01N): Dissolve 0.6 g dimethylglyoxime in 500 ml of 95% ethyl alcohol.

Composition	C4H8N2O2
CAS	95-45-4
Melting Point	238-240 C
Molecular Weight	mol. wt. = 116.12

Resources and Citations

The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 3240

N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology, Archetype Publications, London, 2000, p.80.

CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: Solution (0.01N): Dissolve 0.6 g dimethylglyoxime in 500 ml of 95% ethyl alcohol.

Sigma Dyes, Stains and Natural Pigments, Infrared Library, Nicolet, 1991-1995 Comment: OMNIC: formula= C4H8N2O2, CAS= 95-45-4

@@ Line 1: / Line 1: @@
 == Description ==
-Transparent triclinic crystals used in a colorimetric reagent to detect trace amounts of [http://cameo.mfa.org/materials/fullrecord.asp?name=nickel nickel], [http://cameo.mfa.org/materials/fullrecord.asp?name=copper copper], [http://cameo.mfa.org/materials/fullrecord.asp?name=cobalt cobalt], or [http://cameo.mfa.org/materials/fullrecord.asp?name=bismuth bismuth] (Odegaard et al 2000). Dimethylglyoxime reacts with soluble nickel to produce a bright red precipitate. Copper produces a blue precipitate, cobalt gives a brown, and bismuth forms a bright yellow.
+Transparent triclinic crystals used in a colorimetric reagent to detect trace amounts of [[nickel]], [[copper]], [[cobalt]], or [[bismuth]] (Odegaard et al 2000). Dimethylglyoxime reacts with soluble nickel to produce a bright red precipitate. Copper produces a blue precipitate, cobalt gives a brown, and bismuth forms a bright yellow.
+[[[SliderGallery rightalign|dimethylglyoxime.jpg~Chemical structure]]]
 == Synonyms and Related Terms ==
 ,3-butanedionedioxime; 2,3-diisonitrosobutane; diacetyldioxime
-[[[SliderGallery rightalign|dimethylglyoxime.jpg~Chemical structure]]]
+== Risks ==
-== Other Properties ==
+* Harmful by ingestion.
+* Contact may cause irritation.
+* Fisher Scientific; [https://beta-static.fishersci.com/content/dam/fishersci/en_US/documents/programs/education/regulatory-documents/sds/chemicals/chemicals-d/S25301.pdf SDS]
+==Physical and Chemical Properties==
 Insoluble in water.  Soluble in alcohol, ether, pyridine, acetone.
@@ Line 24: / Line 27: @@
 |-
 ! scope="row"| Melting Point
-| 238-240
+| 238-240 C
 |-
 ! scope="row"| Molecular Weight
@@ Line 30: / Line 33: @@
 |}
-== Hazards and Safety ==
+==Resources and Citations==
-Harmful by ingestion.  Contact may cause irritation.
-Mallinckrodt Baker: [http://www.jtbaker.com/msds/englishhtml/d6488.htm MSDS]
-== Additional Information ==
-N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'' Archetype Publications, London, 2000, p.80.
-== Authority ==
 * ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996  Comment: entry 3240
-* N.Odegaard, S.Carroll, W.Zimmt, N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'', Archetype Publications, London, 2000
+* N.Odegaard, S.Carroll, W.Zimmt, ''Material Characterization Tests for Objects of Art and Archaeology'', Archetype Publications, London, 2000, p.80.
 * ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: Solution (0.01N): Dissolve 0.6 g dimethylglyoxime in 500 ml of 95% ethyl alcohol.