Difference between revisions of "Maleic anhydride"
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== Description == | == Description == | ||
| − | A reactive, white solid compound that is used in the manufacture of [[polyester%20resin|polyester]] and [[alkyd%20resin alkyd]] resins. Maleic anhydride has needle-like crystals that dissolve readily in water to form [ | + | A reactive, white solid compound that is used in the manufacture of [[polyester%20resin|polyester]] and [[alkyd%20resin|alkyd]] resins. Maleic anhydride has needle-like crystals that dissolve readily in water to form [[maleic%20acid|maleic acid]]. It is also used in finishing processes for [[paper|paper]] and [[permanent%20press|permanent press]] [[textile|textiles]]. Maleic acid is also used in alkyd resins to increase hardness and decrease yellowing in baking [[enamel%2C%20inorganic|enamels]] (Brady 1971). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| Line 7: | Line 7: | ||
2,5-furandione; cis-butenedioic anhydride; | 2,5-furandione; cis-butenedioic anhydride; | ||
| − | == | + | == Risks == |
| + | |||
| + | * Corrosive. May cause burns. | ||
| + | * Combustible. Flash point = 102 C | ||
| + | * ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=AC125240250&productDescription=MALEIC+ANHYDRIDE%2C+99%25%2C+P+25GR&vendorId=VN00032119&countryCode=US&language=en SDS] | ||
| + | ==Physical and Chemical Properties== | ||
Dissolves in water to form maleic acid. Soluble in acetone, ethanol and dioxane. Slightly soluble in chloroform, benzene and toluene. | Dissolves in water to form maleic acid. Soluble in acetone, ethanol and dioxane. Slightly soluble in chloroform, benzene and toluene. | ||
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! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 52.8 | + | | 52.8 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 1.48 | + | | 1.48 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 202 | + | | 202 C |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
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* ''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 | ||
Latest revision as of 11:45, 1 October 2022
Description
A reactive, white solid compound that is used in the manufacture of polyester and alkyd resins. Maleic anhydride has needle-like crystals that dissolve readily in water to form Maleic acid. It is also used in finishing processes for Paper and Permanent press textiles. Maleic acid is also used in alkyd resins to increase hardness and decrease yellowing in baking enamels (Brady 1971).
Synonyms and Related Terms
2,5-furandione; cis-butenedioic anhydride;
Risks
- Corrosive. May cause burns.
- Combustible. Flash point = 102 C
- ThermoFisher: SDS
Physical and Chemical Properties
Dissolves in water to form maleic acid. Soluble in acetone, ethanol and dioxane. Slightly soluble in chloroform, benzene and toluene.
| Composition | C4H2O3 |
|---|---|
| CAS | 108-31-6 |
| Melting Point | 52.8 C |
| Density | 1.48 g/ml |
| Molecular Weight | mol. wt. = 98.06 |
| Boiling Point | 202 C |
Resources and Citations
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5744
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 605
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993