8.00592

Phthalic anhydride

for synthesis

• Sinonimo/i: Phthalic anhydride
• Formula empirica (notazione di Hill): C₈H₄O₃
• Numero CAS: 85-44-9
• Peso molecolare: 148.12
• Numero MDL: MFCD00005918
• Codice UNSPSC: 12352115
• Numero indice EU: 201-607-5
• NACRES: NA.22

Proprietà

• Tensione di vapore: <0.01 hPa ( 20 °C)
• Livello qualitativo: 200
• Stato: crystals
• Temp. autoaccensione: 580 °C
• Potenza: 1530 mg/kg LD₅₀, oral (Rat); >3160 mg/kg LD₅₀, skin (Rabbit)
• Limite di esplosione: 1.7-10.5 % (v/v)
• pH: 2 (20 °C, 6 g/L in H₂O)
• P. ebollizione: 285 °C/1013 hPa
• Punto di fusione: 131 °C
• Temp. transizione: flash point 152 °C
• Solubilità: 6 g/L (slow decomposition)
• Densità: 1.527 g/cm³ at 20 °C
• Densità bulk: 500‑700 kg/m³
• Temperatura di conservazione: no temp limit
• InChI: 1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H; LGRFSURHDFAFJT-UHFFFAOYSA-N

Descrizione

Applicazioni

<ul>
<li><strong>Antibacterial and cytotoxic activity of chitosan derivatives:</strong>Phthalic anhydride-modified chitosan derivatives exhibit significant antibacterial and cytotoxic properties, suggesting their potential application in medical and pharmaceutical products (Sousa et al., 2024).</li>
<li><strong>Heterodinuclear Polymerization Catalysts:</strong> Research identified Al(III)/K(I) polymerization catalysts that utilize phthalic anhydride for producing high-quality polyester polyols, offering advancements in polymer synthesis technology (Shellard et al., 2024).</li>
<li><strong>Advanced epoxy vitrimers:</strong> Phthalic anhydride was used in the design and synthesis of advanced epoxy vitrimers with enhanced glass transition temperatures, important for applications requiring high-performance thermoset polymers (Dai et al., 2023).</li>
<li><strong>Sustainable alkyd resins:</strong> The utilization of phthalic anhydride in the production of alkyd resins from bio-based resources represents a significant move towards more sustainable and environmentally friendly coating applications (Dizman and Cerrahoglu Ka and ccedil;akgil, 2023).</li>
</ul>

Risultati analitici

Assay (morpholine method): ≥ 98,0 %(m)
Melting range (lower value): ≥ 129 °C
Melting range (upper value): ≤ 133 °C
Identity (IR): conforms

Informazioni sulla sicurezza

• Pittogrammi: GHS08,GHS05,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H302,H315,H317,H318,H334,H335
• Consigli di prudenza: P261 - P280 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 8A - Combustible corrosive hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 305.6 °F - DIN 51758
• Punto d’infiammabilità (°C): 152 °C - DIN 51758