Phthalic acid, ACS reagent, 25G

SKU:
402915-25G
  • $38.80

    • Description

    Phthalic acid, ACS reagent, ≥99.5%, 25G

    Synonym(s):
    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
    PubChem Substance ID:
    24865138
    NACRES:
    NA.21

    PROPERTIES

    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 (SO42-): ≤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

    General description

    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]

    Application

    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]

    SAFETY INFORMATION

    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