8.00592

Phthalic anhydride

for synthesis

• Sinônimo(s): Phthalic anhydride
• Fórmula empírica (Notação de Hill): C₈H₄O₃
• Número CAS: 85-44-9
• Peso molecular: 148.12
• Número MDL: MFCD00005918
• Código UNSPSC: 12352115
• Número do índice EC: 201-607-5
• NACRES: NA.22

Propriedades

• pressão de vapor: <0.01 hPa ( 20 °C)
• Nível de qualidade: 200
• Formulário: crystals
• temperatura de autoignição: 580 °C
• potência: 1530 mg/kg LD₅₀, oral (Rat); >3160 mg/kg LD₅₀, skin (Rabbit)
• Lim. expl.: 1.7-10.5 % (v/v)
• pH: 2 (20 °C, 6 g/L in H₂O)
• p.e.: 285 °C/1013 hPa
• pf: 131 °C
• temperatura de transição: flash point 152 °C
• solubilidade: 6 g/L (slow decomposition)
• densidade: 1.527 g/cm³ at 20 °C
• densidade volumétrica: 500‑700 kg/m³
• temperatura de armazenamento: no temp limit
• cadeia de caracteres SMILES: O1C(=O)c2c(cccc2)C1=O
• InChI: 1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H
• chave InChI: LGRFSURHDFAFJT-UHFFFAOYSA-N

Descrição

Aplicação

<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>

Nota de análise

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

Informações de segurança

• Pictogramas: GHS08,GHS05,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H302,H315,H317,H318,H334,H335
• Declarações de precaução: P261 - P280 - P301 + P312 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 4 Oral - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 8A - Combustible corrosive hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): 305.6 °F - DIN 51758
• Ponto de fulgor (°C): 152 °C - DIN 51758