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85-44-9 - Phthalic anhydride, 99% - 2,5-Isobenzofurandione - Benzene-1,2-dicarboxylic anhydride - A14955 - Alfa Aesar

A14955 Phthalic anhydride, 99%

Numéro CAS
85-44-9
Synonymes
2,5-Isobenzofurandione
Benzene-1,2-dicarboxylic anhydride

Dimensions Prix ($) Quantité Disponibilité
100g 14,94
1000g 20,50
5000g 84,46
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Phthalic anhydride, 99%

MDL
MFCD00005918
EINECS
201-607-5

Propriétés chimiques

Formule
C8H4O3
Poids formulaire
148.12
Point de fusion
130-134°
Point d'ébullition
295° subl.
Point d'éclair
152°(305°F)
Densité
1.53
Sensibilité
Moisture Sensitive
Solubilité
Soluble in water, carbon disulfide, ethanol, acetone and benzene. Slightly soluble in ethyl ether.

Applications

Phthalic anhydride is used in the preparation of primary amines. It is used as a precursor to prepare anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescein and xanthene dyes. It serves as an important intermediate in the plastics industry, dyes, resins and pigments. It is used as a monomer for synthetic resins such as glyptal, alkyd resins and polyester resins. It plays a vital role in the large-scale production of plasticizers for plastics. Further, it acts as a curing agent for epoxy resins, anti-scaling agents, plating agents, surface treating agents, ion exchange agents, paint additives, adhesives, sealant chemicals and potential antibacterial agent.

Notes

Moisture sensitive. Incompatible with strong oxidizing agents, strong bases, strong reducing agents and strong acids.

Références bibliographiques

For examples of formation of phthalimides from amines, see: Org. Synth. Coll., 4, 106 (1963); 5, 973 (1973). As an alternative to hydrazinolysis, ɑ-amino acids can also be quantitatively recovered from their phthaloyl derivatives by prolonged reaction with aqueous methylamine at room temperature: Can. J. Chem., 48, 3572 (1970).

Can be used for the dehydration of nitro aldols to nitroalkenes; see, e.g.: Org. Synth. Coll., 7, 396 (1990).

Reaction with H2O2 gives monoperphthalic acid, useful in peroxidation reactions; see, e.g.: Org. Synth. Coll., 3, 619 (1955); 5, 805 (1973). With urea hydrogen peroxide, provides a superior system for converting N-heteroaromatics and tert-amines to their N-oxides: Chem. Ber., 125, 1965 (1992)

Liu, Y.; Gu, Y.; Hou, Y.; Yang, Y.; Deng, S.; Wei, Z. Hydrophobic activated carbon supported Ni-based acid-resistant catalyst for selective hydrogenation of phthalic anhydride to phthalide. Chem. Eng. J. 2015, 275, 271-280.

Lin, Z.; Ierapetritou, M.; Nikolakis, V. Phthalic anhydride production from hemicellulose solutions: Technoeconomic analysis and life cycle assessment. AlChE J. 2015, 61 (11), 3708-3718.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H334-H317-H318-H315-H302-H335

May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction. Causes serious eye damage. Causes skin irritation. Harmful if swallowed. May cause respiratory irritation.

Mentions de prudence: P285-P261-P280-P305+P351+P338-P304+P340-P310-P342+P311-P362-P405-P501a

In case of inadequate ventilation wear respiratory protection. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Merck
14,7372
Beilstein
118515
Classe de danger
8
Groupe d'emballage
III
Code tarifaire harmonisé
2917.35
TSCA
Yes
RTECS
TI3150000

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