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402915 Sigma-Aldrich

Phthalic acid

ACS reagent, ≥99.5%

Synonym: 1,2-Benzenedicarboxylic acid

  • CAS Number 88-99-3

  • Linear Formula C6H4-1,2-(CO2H)2

  • Molecular Weight 166.13

  •  Beilstein Registry Number 608199

  •  EC Number 201-873-2

  •  MDL number MFCD00002467

  •  PubChem Substance ID 24865138

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Properties

Related Categories Acids, Acids & Bases, Building Blocks, C8, Carbonyl Compounds,
grade   ACS reagent
InChI Key   XNGIFLGASWRNHJ-UHFFFAOYSA-N
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%

Description

Packaging

1 kg in poly bottle

25, 250 g in poly bottle

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.

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.

Price and Availability

Suggested Laboratory Gloves


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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
TH9625000

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

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Peer-Reviewed Papers
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