Difference between revisions of "Maleic acid"

Latest revision as of 11:00, 1 October 2022

Description

An organic acid that exists as white crystals at room temperature. Maleic acid is a strong irritating acid that is used in the dyeing and finishing of Wool, Cotton, and Silk. It is also used as a preservative for fats and oils. Maleic acid is not the same as Malic acid that is obtained from apples.

Synonyms and Related Terms

maleinic acid; malenic acid; cis-butenedioic acid; toxilic acid; cis-1,2-ethylenedicarboxylic acid; resina maleica (Esp., Port.)

Chemical structure

Risks

Strong irritant.
Toxic by ingestion.
Combustible producing toxic fumes.
ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water, ethanol, acetone, glacial acetic acid. Slightly soluble in ether. Insoluble in benzene.

Composition	HOOCC2H2COOH
CAS	110-16-7
Melting Point	138-139 C
Density	1.59 g/ml
Molecular Weight	mol. wt. = 116.1

Resources and Citations

Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5743

The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

@@ Line 1: / Line 1: @@
 == Description ==
-An organic acid that exists as white crystals at room temperature. Maleic acid is a strong irritating acid that is used in the dyeing and finishing of [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool], [http://cameo.mfa.org/materials/fullrecord.asp?name=cotton cotton], and [http://cameo.mfa.org/materials/fullrecord.asp?name=silk silk]. It is also used as a preservative for fats and oils. Maleic acid is not the same as [http://cameo.mfa.org/materials/fullrecord.asp?name=malic acid malic acid] that is obtained from apples.
+An organic acid that exists as white crystals at room temperature. Maleic acid is a strong irritating acid that is used in the dyeing and finishing of [[wool|wool]], [[cotton|cotton]], and [[silk|silk]]. It is also used as a preservative for fats and oils. Maleic acid is not the same as [[malic%20acid|malic acid]] that is obtained from apples.
 == Synonyms and Related Terms ==
@@ Line 9: / Line 9: @@
 [[[SliderGallery rightalign|maleic acid.jpg~Chemical structure]]]
-== Other Properties ==
+== Risks ==
+* Strong irritant.
+* Toxic by ingestion.
+* Combustible producing toxic fumes.
+* ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC125231000&productDescription=MALEIC+ACID%2C+99%25+100GR&vendorId=VN00032119&countryCode=US&language=en SDS]
+==Physical and Chemical Properties==
 Soluble in water, ethanol, acetone, glacial acetic acid. Slightly soluble in ether. Insoluble in benzene.
@@ Line 22: / Line 28: @@
 |-
 ! scope="row"| Melting Point
-| 138-139
+| 138-139 C
 |-
 ! scope="row"| Density
-| 1.59
+| 1.59 g/ml
 |-
 ! scope="row"| Molecular Weight
@@ Line 31: / Line 37: @@
 |}
-== Hazards and Safety ==
+==Resources and Citations==
-Strong irritant. Toxic by ingestion. Combustible producing toxic fumes.
-[http://www.cdc.gov/niosh/ipcsneng/neng1186.html International Chemical Safety Card]
-== Authority ==
-* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
+* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
-* Susan Budavari (ed.), ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996  Comment: entry 5743
+* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996  Comment: entry 5743
-* ''The American Heritage Dictionary'' or ''Encarta'', ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
+* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
 [[Category:Materials database]]