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P39303

Sigma-Aldrich

Phthalic acid

reagent grade, 98%

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Synonym(s):
1,2-Benzenedicarboxylic acid
Linear Formula:
C6H4-1,2-(CO2H)2
CAS Number:
Molecular Weight:
166.13
Beilstein/REAXYS Number:
608199
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

assay

98%

form

crystalline powder
powder

mp

210-211 °C (dec.) (lit.)

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

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This Item
80010792551535899
Phthalic acid reagent grade, 98%

P39303

Phthalic acid

Phthalic acid puriss. p.a., ≥99.5% (T)

80010

Phthalic acid

Phthalic acid analytical standard

79255

Phthalic acid

Phthalic acid United States Pharmacopeia (USP) Reference Standard

1535899

Phthalic acid

assay

98%

assay

≥99.5% (T)

assay

≥99.5% (GC), ≥99.5% (T)

assay

-

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

form

crystalline powder

form

powder or crystals

form

-

form

crystalline

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

mp

210-211 °C (dec.) (lit.)

General description

Phthalic acid (PA) is the final metabolite of phthalic acid esters (PAEs). Its interaction with well-ordered MgO(100) (magnesium oxide) thin films has been investigated. The efficiency of activated carbon suspended in aqueous medium for the adsorption of PA has been analyzed. The degradation of PA via oxidation by electro-Fenton (EF) and solar photoelectro-Fenton (SPEF) has been reported.

Application

Phthalic acid may be used as an additive to the mobile phase to enhance the detection sensitivity of amino acids (AAs) by hydrophilic interaction liquid chromatography (HILIC) coupled with electrospray ionization tandem mass spectrometry (ESI-MS/MS).

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

334.4 °F

flash_point_c

168 °C

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Benzoic Acid and Phthalic Acid on Atomically Well-Defined MgO(100) Thin Films: Adsorption, Interface Reaction, and Thin Film Growth.
Xu T, et al.
The Journal of Physical Chemistry C, 119(48), 26968-26979 (2015)
Mineralization of phthalic acid by solar photoelectro-Fenton with a stirred boron-doped diamond/air-diffusion tank reactor: Influence of Fe3+ and Cu2+ catalysts and identification of oxidation products.
Garcia-Segura S, et al.
Electrochimica Acta, 113, 609-619 (2013)
Du Yeon Bang et al.
Toxicological research, 27(4), 191-203 (2011-12-01)
There has been growing concern about the toxicity of phthalate esters. Phthalate esters are being used widely for the production of perfume, nail varnish, hairsprays and other personal/cosmetic uses. Recently, exposure to phthalates has been assessed by analyzing urine for
Adsorption/bioadsorption of phthalic acid, an organic micropollutant present in landfill leachates, on activated carbons.
Mendez-Diaz JD, et al.
Journal of Colloid and Interface Science, 369(1), 358-365 (2012)
Wanshu Qi et al.
Analytica chimica acta, 870, 75-82 (2015-03-31)
In this work, 0.08 mmol L(-1) of phthalic acid was introduced as a mobile phase additive to quantify free amino acids (AAs) by hydrophilic interaction liquid chromatography (HILIC) coupled with electrospray ionization tandem mass spectrometry (ESI-MS/MS). The addition of phthalic

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