PHTHALIC ACID ACS REAGENT >=99.5% (C005B-086380)

General description

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.

Application

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.

Molecular Weight: 166.13. Empirical Formula: C₈H₆O₄. linearFormula: C₆H₄-1,2-(CO₂H)₂. grade: ACS reagent. Quality Level: 200. Assay: ≥. 99.5%. form: powder or crystals. impurities: ≤. 0.05% insolubles, ≤. 0.5% water. ign. residue: ≤. 0.02%. mp: 210-211 . °C (dec.) (lit.). anion traces: chloride (Cl^-): ≤. 0.001%, nitrate (NO₃^-): ≤. 0.005%, sulfate (SO₄^2-): ≤. 0.005%. cation traces: Fe: ≤. 0.001%, heavy metals: ≤. 0.001%. 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. Pictograms: GHS07. Signal Word: Warning. Hazard Statements: H315 - H319 - H335. Precautionary Statements: P302 + P352 - P305 + P351 + P338. Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3. Target Organs: Respiratory system. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1. Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves.