402915

Phthalic acid

ACS reagent, ≥99.5%

• 동의어(들): 1,2-Benzenedicarboxylic acid
• Linear Formula: C₆H₄-1,2-(CO₂H)₂
• CAS Number: 88-99-3
• Molecular Weight: 166.13
• Beilstein: 608199
• EC Number: 201-873-2
• MDL number: MFCD00002467
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24865138
• NACRES: NA.21

속성

• Grade: ACS reagent
• Quality Level: 200
• 분석: ≥99.5%
• 양식: powder or crystals
• 불순물: ≤0.05% insolubles; ≤0.5% water
• 무기 잔류물: ≤0.02%
• mp: 210-211 °C (dec.) (lit.)
• 음이온 미량물: chloride (Cl^-): ≤0.001%; nitrate (NO₃^-): ≤0.005%; sulfate (SO₄^2-): ≤0.005%
• 양이온 미량물: Fe: ≤0.001%; heavy metals: ≤0.001%
• 작용기: carboxylic acid
• SMILES string: 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)
• InChI key: XNGIFLGASWRNHJ-UHFFFAOYSA-N

설명

일반 설명

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.

애플리케이션

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.

안전성 정보

• 픽토그램: GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H318
• 예방조치 성명서: P280 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): 334.4 °F
• Flash Point (°C): 168 °C
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves