402915

Phthalic acid

ACS reagent, ≥99.5%

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

Propriedades

• grau: ACS reagent
• Nível de qualidade: 200
• Ensaio: ≥99.5%
• forma: powder or crystals
• Impurezas: ≤0.05% insolubles; ≤0.5% water
• resíduo de ignição: ≤0.02%
• pf: 210-211 °C (dec.) (lit.)
• traços de ânion: chloride (Cl^-): ≤0.001%; nitrate (NO₃^-): ≤0.005%; sulfate (SO₄^2-): ≤0.005%
• traços de cátion: Fe: ≤0.001%; heavy metals: ≤0.001%
• cadeia de caracteres 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)
• chave InChI: XNGIFLGASWRNHJ-UHFFFAOYSA-N

Descrição

Descrição geral

Phthalic acid (PA, PTA), also called as 1,2-benzenedicarboxylic acid is an aromatic carboxylic acid. 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. Its mineralization by photocatalysis using TiO₂/UV system has been studied. It also is used as a potential tyrosinase inhibitor.

Aplicação

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

Informações de segurança

• Pictogramas: GHS05
• Palavra indicadora: Danger
• Frases de perigo: H318
• Declarações de precaução: P280 - P305 + P351 + P338
• Classificações de perigo: Eye Dam. 1
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): 334.4 °F
• Ponto de fulgor (°C): 168 °C
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Gloves