Difference between revisions of "Maleic acid"
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== Description == | == 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 [ | + | 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 == | == Synonyms and Related Terms == | ||
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[[[SliderGallery rightalign|maleic acid.jpg~Chemical structure]]] | [[[SliderGallery rightalign|maleic acid.jpg~Chemical structure]]] | ||
| − | == | + | == 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. | Soluble in water, ethanol, acetone, glacial acetic acid. Slightly soluble in ether. Insoluble in benzene. | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 138-139 | + | | 138-139 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.59 | + | | 1.59 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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| − | == | + | ==Resources and Citations== |
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* 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 | ||
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.)
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