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M188

Sigma-Aldrich

Maleic anhydride

99%

Synonim(y):

2,5-Furandione

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25 G
289,00 zł
1 KG
434,00 zł
5 KG
552,00 zł
25 KG
3040,00 zł

289,00 zł

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Wszystkie zdjęcia(2)

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25 G
289,00 zł
1 KG
434,00 zł
5 KG
552,00 zł
25 KG
3040,00 zł

About This Item

Wzór empiryczny (zapis Hilla):
C4H2O3
Numer CAS:
108-31-6
Masa cząsteczkowa:
98.06
Beilstein:
106909
Numer WE:
203-571-6
Numer MDL:
MFCD00005518
Kod UNSPSC:
12162002
Identyfikator substancji w PubChem:
24896701
NACRES:
NA.23

289,00 zł

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gęstość pary

3.4 (vs air)

Poziom jakości

200

ciśnienie pary

0.16 mmHg ( 20 °C)

Próba

99%

temp. samozapłonu

870 °F

granice wybuchowości

7.1 %

bp

200 °C (lit.)

mp

51-56 °C (lit.)

ciąg SMILES

O=C1OC(=O)C=C1

InChI

1S/C4H2O3/c5-3-1-2-4(6)7-3/h1-2H

Klucz InChI

FPYJFEHAWHCUMM-UHFFFAOYSA-N

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Opis ogólny

Maleic anhydride (MA) belongs to the class of monomers known as cyclic dicarboxylic anhydrides. It is commonly used in polymerization reactions to produce various types of polymers such as poly(maleic anhydride) (PMA), maleic anhydride-based resins, and maleic anhydride-butadiene copolymers (MABS), etc. These MA-based polymers find applications in various fields including, polymer blends and coatings, epoxy resins, semiconductor devices, secondary batteries, lithium-ion batteries, resin films, glass fiber, coatings, packaging, water treatment, and drug delivery systems. Additionally, MA can be grafted onto other polymers, to enhance their performance and compatibility with other materials. Grafted polymers find applications in the automotive, packaging, and construction industries. Maleic anhydride is also used as an electron-acceptor monomer in the development of various antimicrobial polymers due to their reactive double bonds and reactive anhydride groups.[1][2][3][4][5]

The structure of maleic acid consists of four carbon molecules along with carboxylate groups on either ends, with a double bond between the central carbon atoms. The anhydride of maleic acid has five atoms in its cyclic molecule, the unsaturated bond undergoes free radical polymerization in the presence of an initiator.

Zastosowanie

Maleic anhydride can be used as a monomer:
  • In the grafting process of high-density polyethylene (HDPE) by the monomer microencapsulation technique, which enables the introduction of enhanced functionality and improved properties to the polymer for functional coatings, membranes, or surface treatments, adhesives, and coatings.
  • In the functionalization of polylactic acid (PLA) and acts as a coupling agent in natural fiber biocomposites. The functionalization improves the compatibility and interfacial adhesion between PLA and natural fibers, leading to enhanced mechanical properties and expanded applications of the resulting biocomposite materials.
  • Maleic anhydride may be used in the synthesis of unsaturated polyester resins and as a reactant in synthesizing important products such as agricultural chemicals, lubricant additives, and food acidulatents.

Postać fizyczna

briquettes
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Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

H302,H314,H317,H334,H372

Klasyfikacja zagrożeń

Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1A - STOT RE 1 Inhalation

Organy docelowe

Respiratory system

Zagrożenia dodatkowe

EUH071

Kod klasy składowania

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

217.4 °F - closed cup

Temperatura zapłonu (°C)

103 °C - closed cup

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
MKCV5024
STBL3785
STBL4342
STBL1795
MKCT4406

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Jeśli potrzebujesz konkretnej wersji, możesz wyszukać konkretny certyfikat według numeru partii lub serii.

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Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Could you please provide the approx. particle size of the briquets?

    1 answer

    1. These briquettes are shaped like a 'Charcoal' briquette with approximate dimensions of 32mm x 28mm x 12 mm.

      Helpful?

  4. What use in ABS and PC

    1 answer

    1. Please see the amended response. It is advised that applications for Product M188 be searched via literature search. The cited articles may assist in your literature search for Maleic anhydride uses with polycarbonate and acrylonitrile butadiene styrene.

      https://doi.org/10.1007/s10965-021-02632-9)
      https://doi.org/10.1016/j.matpr.2021.01.531
      https://doi.org/10.1016/j.polymer.2004.07.022

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