Pyromellitic acid CAS 89-05-4

White to slightly yellow powdery crystal. Melting point 276°C (anhydrous), 242°C (with 2 molecules of water of crystallization), relative density 1.79. Soluble in alcohol, slightly soluble in ether and water. Can sublimate.

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Model:
89-05-4
Brand:
bosschemical
Code:
89-05-4

Product Description

Pyromellitic acid Basic information
Product Name:	Pyromellitic acid
CAS:	32632
MF:	C10H6O8
MW:	254.15
EINECS:	201-879-5
Mol File:	89-05-4.mol
Pyromellitic acid Chemical Properties
Melting point	281-284.5 °C(lit.)
Boiling point	317.36°C (rough estimate)
density	0,56 g/cm3
refractive index	1.7010 (estimate)
Fp	325 °C
storage temp.	Store below +30°C.
solubility	0.1 M NaOH: 0.2 M, clear, faintly yellow
pka	pK1: 1.92;pK2: 2.87;pK3: 4.49;pK4: 5.63 (25°C)
form	Crystalline Powder
color	White to very slightly yellow
Water Solubility	1.5 g/100 mL (20 ºC)
Merck	148,004
Stability:	Stable. Incompatible with strong oxidizing agents, strong bases.
InChIKey	CYIDZMCFTVVTJO-UHFFFAOYSA-N
LogP	0.15 at 25℃
CAS DataBase Reference	89-05-4(CAS DataBase Reference)
NIST Chemistry Reference	1,2,4,5-Benzene-tetracarboxylic acid(89-05-4)
EPA Substance Registry System	1,2,4,5-Benzenetetracarboxylic acid (89-05-4)

Pyromellitic acid CAS 89-05-4

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Chemical detection methods

Spectroscopic Analysis Methods

Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)

Chromatographic Analysis

Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
Ion Chromatography (IC)
Thin Layer Chromatography (TLC)

Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Electrochemical analysis methods

Polypotentiometric methods
Conductivity methods
Polarographic methods / Voltammetric methods
Coulometric analysis

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)

Classical wet chemical analysis

Titration analysis
Gravity analysis