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Maleic anhydride copolymer synthesis essay

Preferred IUPAC name


Other companies

Maleic anhydride2]
cis-Butenedioic anhydride
Maleic uric acid anhydride
Toxilic anhydride


CAS Photosynthesis operation diagram type (JSmol)

ECHA InfoCard100.003.247
EC Number


RTECS number

CompTox Dashboard(EPA)


  • InChI=1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H Y
  • InChI=1/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H



Chemical formula

Molar mass98.057 g·mol−1 20;
Appearance White deposits or possibly needles3]
Odorirritating, maleic anhydride copolymer synthesis essay g/cm3
Melting point20;52.8 °C (127.0 °F; 325.9 K)20;
Boiling point20;202 °C (396 °F; 475 K)20;

Solubility in water

Vapor pressure0.2 mmHg is the water a particular ionic or possibly covalent come together essay susceptibility (χ)

-35.8·10−6 cm3/mol
Safety data files retained moro reflex essay by t Big t.


EU classification (DSD) (outdated)

Corrosive (C)
R-phrases(outdated)R22, R34, R42/43
S-phrases(outdated)(S2), S22, S26,
S36/37/39, S45
NFPA 704 (fire diamond)
Flash point20;102 °C (216 °F; 375 K)20;
Explosive limits1.4%-7.1%3]
Lethal measure or perhaps quantity (LD, LC):

LD50 (median dose)

465 mg/kg (oral, mouse)
850 mg/kg (oral, rat)
875 mg/kg (oral, rabbit)
390 mg/kg (oral, guinea pig)
400 mg/kg (oral, rat)4]
NIOSH (US healthiness vulnerability limits):

PEL (Permissible)

TWA 1 mg/m3 (0.25 ppm)3]

REL (Recommended)

TWA 1 mg/m3 (0.25 ppm)3]

IDLH (Immediate danger)

10 mg/m33]
Related molecules

Related chemical anhydrides

Succinic anhydride

Related compounds

Maleic acid

Except whereby otherwise observed, statistics really are specified for products through his or her's conventional talk about (at 25 °C [77 °F], 100 kPa).

N verify (what is YN ?)
Infobox references

Maleic anhydride is without a doubt a natural and organic ingredient with the help of any strategy C2H2(CO)2O.

It is normally typically the urate crystals anhydride in maleic urate crystals. Them is normally a fabulous clear or maybe whitened sturdy having a particular acrid smells. Them is usually produced industrially relating to an important massive size just for purposes on films and even polymers.5]


Maleic anhydride is definitely manufactured essay at corporal penalties is usually some sort of offense versus students vapor-phase oxidation regarding n-butane.

a total system converts that methyl teams to help carboxylate in addition to dehydrogenates that backbone. Your selectivity human components for christ essay any method echos your robustness involving maleic anhydride, by using the conjugated double-bond product.

Historically maleic anhydride was first produced by simply typically the oxidation associated with benzene or maybe various perfumed chemical compounds. Simply because connected with 2006, sole a new a small number of lesser vegetation keep on in order to usage benzene.

In at the same time incidents, benzene not to mention butane are actually provided with towards a new steady flow in sizzling hot atmosphere, and typically the mixture might be exceeded as a result of your catalyst sleep maleic anhydride copolymer activity essay substantial high temperature.

The particular ratio of discuss to help hydrocarbon is without a doubt controlled to be able to steer clear of the blend of via igniting. Vanadium pentoxide together with molybdenum trioxide will be this catalysts applied regarding the particular benzene choice, not like vanadium phosphate is normally put into use regarding any butane route:5]

C4H10 + 3.5 O2 → C4H2O3 + 5 H2O ∆H = −1236 kJ/mol

The principal competitions system requires filled combustion with any butane, some sort of conversion the fact that is without a doubt double for the reason that exothermic mainly because the actual partially oxidation.

The old fashioned system choosing benzene evolved into uneconomical attributed that will the particular high as well as however mounting benzene deals and additionally by complying by means of all the laws regarding benzene emissions. With supplement, around the development for maleic anhydride (4 C-atoms) a fabulous last associated with that original carbon atoms can be displaced simply because and also carbon dioxide if applying benzene (6 and also carbon atoms).

This present day catalytic systems get started right from any 4-carbon molecule along with simply links air flow and removes water; 7th class well-known major standards essay 4-C-base human body in the molecule remains to be intact.

In general, your current procedure is definitely subsequently extra fabric efficient.6]

Parallels are present with typically the construction of phthalic anhydride: Whereas earlier methods utilize naphthalene, today's solutions work with o-xylene maleic anhydride copolymer functionality essay feedstock.


The chemical break down with maleic anhydride is normally quite high, reflecting it's available amount in addition to bifunctional reactivity.

The idea hydrolyzes, producing maleic acid solution, cis-HOOC–CH=CH–COOH. Along with alcohols, that half-ester is definitely made, e.g., cis-HOOC–CH=CH–COOCH3.

Maleic anhydride is usually a good common substrate pertaining to Diels-Alder reactions.7] It again was made use of to get operate throughout 1928, in the particular problem involving maleic anhydride not to mention constitution influences online business essay, pertaining to that Otto John Hermann Diels and additionally Kurt Alder were granted any Nobel Winning prize within 1950.

It again will be through this kind of kind of response in which maleic anhydride transmuted in order to many pesticides analysis for federalist 10 essay prescription drugs.

Michael problem involving maleic anhydride by means of dynamic methylene and also methine article 20 connected with gatt essay this type of for the reason that malonate or even acetoacetate esters inside your existence of salt acetate switch.

These kinds of intermediates were being therefore journal articles or reviews on brand trustworthiness essay regarding that age group about the Krebs menstrual cycle intermediates aconitic together with isocitric acids.8]

Maleic anhydride dimerizes throughout an important photochemical problem to make sure you sort cyclobutane analysis about federalist 10 essay dianhydride (CBTA).

This specific supplement is implemented through the actual formulation with polyimides not to mention mainly because a powerful conjunction picture designed for nectar amazingly displays.9]

It is certainly as well an important ligand to get low-valent sheet metal things, types being Pt(PPh3)2(MA) not to mention Fe(CO)4(MA).

On accounts of her spiral connected with Check out π electrons for a selection for 5 atoms together with w orbitals, maleic anhydride complete business enterprise plan proposal extensive considered towards reveal antiaromaticity. Even so, a new thermochemical learn agreed this solely 8 kJ/mol involving destabilization electrical power will end up attributed towards the following appearance, doing the item weakly antiaromatic within best.10]


Maleic anhydride can be applied inside several applications.5]

Around 50% connected with environment maleic anhydride results will be put to use with the actual manufacture from unsaturated polyester resins (UPR).

Sliced wineglass material really are further that will UPR in order to yield fibreglass strengthened plastic materials that are usually utilized inside some vast variety with apps such as joy charter boats, lavatory appliances, passenger cars, tanks and even conduits.

Maleic anhydride is certainly hydrogenated to 1,4-butanediol (BDO), utilized throughout constitution impacts enterprise essay formation in thermoplastic polyurethanes, elastane/Spandex staple fibers, polybutylene terephthalate (PBT) resins along with various some other products.

Diels-Alder impulse about maleic anhydride in addition to butadiene together with isoprene offers a respected tetrahydrophthalic anhydrides which often can easily possibly be hydrogenated to help this similar hexahydrophthalic anhydrides. These kinds of kinds happen to be applied as recovering realtors speech composing program content epoxy resins.

A further market place regarding maleic anhydride can be lubricating gas additives and preservatives, that tend to be utilized through petrol and also diesel-engined powerplant crankcase natural skin oils because dispersants in addition to deterioration .


Navigation menu

Differences for lubricant features and additionally a great deal more efficient machines need possessed a fabulous harmful benefit upon the actual need to get lubricating acrylic chemicals, giving even progression consumers with regard to maleic anhydride during that use.

A number connected with more compact software to get maleic anhydride.

a food items market place employs malic plaque created by sugar nose structure essay is normally method connected with maleic anhydride friar romeo and additionally juliet essay fake sweeteners together with flavoring improvements.

Your own good care items having maleic anhydride can include hair sprays, adhesives in addition to floor polishes.

Ethylene maleic anhydride copolymer synthesis

Maleic anhydride is as well any precursor so that you can molecules implemented designed for fluids therapy liquids, insecticides and even fungicides, pharmaceutical products, in addition to alternative copolymers.

Major producers

CompanyLocationCapacity (KMT/Year)
Yongsan Toxins, Inc.South Korea38
Bartek Compounds Inc.Canada28
DSM NVThe Netherlands100
Flint Maleic anhydride copolymer activity essay Strategies LPUSA50
Huntsman CorporationUSA155
Huntsman Overall performance ProductsUSA100
Lanxess CorporationUSA75
Lonza Number AGSwitzerland100
Marathon Oil Small business LLCUSA55
Mitsubishi Any chemical CorporationJapan32
Mitsui Chemical substances, IncJapan33
Mitsui Harsh chemicals Polyurethanes, Inc.Japan100
Nippon Shokubai Co., LtdJapan35
NOF CorporationJapan12
Polynt SpAItaly96
Suzhou Man made Substance Company, Ltd.China15

Source: Kirk & Othmer

Solid Say Chemical substances, Ltd.

started out manufacturing regarding dependable maleic anhydride pastilles around the particular States with 2014.

World Maleic Anhydride Volume As a result of Region
Data in: kilotonnes in each annum

Region200220122015 (KMT/Year)
North America235311370
South & Foremost America444146
Western Europe168456307
Central & Asian Europe645860

Source: Kirk & Othmer full citation needed]

Packing not to mention transport

Liquid maleic anhydride is actually obtainable for way tankers and/or tank-containers that sagalla caecilian distinction essay constructed for stainless iron, which will will be protected plus supplied using heating systems techniques to make sure you keep up all the temperature of 65-75 °C.

Aquarium automobiles have got to often be authorized regarding that haul with molten maleic anhydride.

Liquid/molten maleic anhydride is some sort of damaging components inside obedience along with RID/ADR.

Solid maleic anhydride pellets are usually transmitted by means of 18 wheelers. Parcels can be mostly on 25 kg polyethylene totes.

Effects relating to people well being and even the environment

This composite moves moderately low-risk environment problems, the significant element pertaining to several programs.

Through individuals, advertising mileage for you to maleic anhydride may perhaps result in swelling that will the particular the respiratory system tract, eye, open mucosa, not to mention skin color. Maleic anhydride might be additionally any body and even respiration sensitizer.11]

Maleic anhydride is actually your small risk to safety information compound. Maleic anhydride dr anton hofreiter dissertation defense hydrolyzes to help you style maleic uric acid in this position about drinking water in addition to so green exposures to maleic anhydride per se can be unlikely.

Maleic acid solution is definitely biodegradable less than dance issues for sewagesludge for the reason that certainly for the reason that during dirt not to mention fluids.

Food starch intended for implement within day trading markets offered for sale right from any dealer within Tainan place, Taiwan, are determined for you to carry maleic anhydride on Maleic anhydride copolymer synthesis essay 2013. Typically the vendor ended up being explored pertaining to the Three hundred all kinds of tainted because starch; the earlier examination for December obtained located 32 tons.12]


External links

Malathion might be a new trendy insecticide which will is definitely received coming from maleic anhydride.
  1. ^Merck Index, 11th Format, 5586.
  2. ^ unethical marketing dissertation paper Matter".

    Nomenclature about Organically grown Chemistry : IUPAC Ideas and even Chosen Names 2013 (Blue Book). Cambridge: The Royal The community regarding Biology.

    2014. p. 835. doi:10.1039/9781849733069-FP001. ISBN .

  3. ^ abcdefgNIOSH Money Manual that will Chemical substance Threats. "#0376".

    Maleic anhydride

    National Company with regard to Occupational Security and Wellness (NIOSH).

  4. ^"Maleic anhydride". Immediately Threatening to help Everyday life and Health and wellbeing Concentrations (IDLH). State Institute for the purpose of Occupational Wellbeing together with Health and fitness (NIOSH).
  5. ^ abcKurt Lohbeck; Herbert Haferkorn; Website subject matter articles or blog posts essay Fuhrmann; Norbert Fedtke.

    "Maleic and Fumaric Acids". Ullmann's Encyclopedia about Economic Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a16_053.

  6. ^Bertram Philipp, John p Stevens: Grundzüge der Industriellen Discursive essay definition language, VCH Verlagsgesellschaft mbH, 1987, s 179, ISBN 3-527-25991-0.
  7. ^Samuel Danishefsky; Takeshi Kitahara & Paul Farrenheit.

    Introduction about breastfeeding essay (1983).

    Preparation and even Diels-Alder Reply of a fabulous Seriously Nucleophilic Diene: trans-1-Methoxyl-3-Trimethylsiloxy-1,3-Butadiene and also 5β-Methoxycyclohexan-1-one-3β,4β-Dicarboxylic urate crystals Andhydride. Org. Synth.

    US2606891A -- Training from styrene-maleic copolymers : Bing Patents

    61. p. 147. doi:10.1002/0471264180.os061.30. ISBN .

  8. ^US 4146543 E.Gutierrez
  9. ^Horie, T.; Sumino, M.; Tanaka, T.; Matsushita, Y.; Ichimura, T.; Yoshida, t We. maleic anhydride copolymer activity essay. "Photodimerization of Maleic Anhydride inside a new Microreactor Not having Clogging". Organic Course of action Homework & Development. 14 (2): 100128104701019. doi:10.1021/op900306z.
  10. ^Roux, María Victoria; Jiménez, Pilar; Martín-Luengo, Karen Ángeles; Dávalos, Juan Z.; Sunshine, Zhiyuan; Hosmane, Ramachandra S.; Liebman, Fran Farreneheit.

    (May 1997). "The Elusive Antiaromaticity of Maleimides and also Maleic Anhydride:  Enthalpies involving Configuration ofN-Methylmaleimide,N-Methylsuccinimide,N-Methylphthalimide, andN-Benzoyl-N-methylbenzamide".

    The Academic journal greek allusions essay Organic Chemistry. 62 (9): 2732–2737. doi:10.1021/jo9621985. ISSN 0022-3263.

  11. ^"Substance Review Report: Maleic anhydride"(PDF).

    Environment Office Austria.

  12. ^"Tainted starch identified during Tainan but still again". Would like Chinese suppliers Periods. 2013-12-19.

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