402915

Phthalic acid

ACS reagent, ≥99.5%

• Sinónimos: 1,2-Benzenedicarboxylic acid
• Fórmula lineal: C₆H₄-1,2-(CO₂H)₂
• Número de CAS: 88-99-3
• Peso molecular: 166.13
• Beilstein: 608199
• Número CE: 201-873-2
• Número MDL: MFCD00002467
• Código UNSPSC: 12352100
• ID de la sustancia en PubChem: 24865138
• NACRES: NA.21

Propiedades

• grado: ACS reagent
• Nivel de calidad: 200
• Ensayo: ≥99.5%
• Formulario: powder or crystals
• impurezas: ≤0.05% insolubles; ≤0.5% water
• residuo de ign.: ≤0.02%
• mp: 210-211 °C (dec.) (lit.)
• trazas de anión: chloride (Cl^-): ≤0.001%; nitrate (NO₃^-): ≤0.005%; sulfate (SO₄^2-): ≤0.005%
• trazas de catión: Fe: ≤0.001%; heavy metals: ≤0.001%
• grupo funcional: carboxylic acid
• cadena SMILES: OC(C1=C(C(O)=O)C=CC=C1)=O
• InChI: 1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12)
• Clave InChI: XNGIFLGASWRNHJ-UHFFFAOYSA-N

Descripción

Descripción general

Phthalic acid (PA, PTA), also called as 1,2-benzenedicarboxylic acid[1] is an aromatic carboxylic acid.[2] It is the ortho form of the three phthalic acid isomers, the other two being isophthalic acid (meta form) and terephthalic acid (para form). PA is the starting material in the synthesis of plasticizers. A study on toxicity reveals that PA shows in vitro and in vivo toxicity.[1] Its mineralization by photocatalysis using TiO₂/UV system has been studied.[3] It also is used as a potential tyrosinase inhibitor.[4]

Aplicación

Phthalic acid may be used as a catalyst for the thiocyanation of aromatics and heteroaromatics[5] and as an interfacial protector for the preparation of ordered mesoporous γ-alumina.[6] It may be used as a model compound in understanding the adsorption of aromatic carboxylic acids on gold surfaces.[2]

Información de seguridad

• Pictogramas: GHS05
• Palabra de señalización: Danger
• Frases de peligro: H318
• Consejos de prudencia: P280 - P305 + P351 + P338
• Clasificaciones de peligro: Eye Dam. 1
• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): 334.4 °F
• Punto de inflamabilidad (°C): 168 °C
• Equipo de protección personal: dust mask type N95 (US), Eyeshields, Gloves