1.08262

Ácido trifluoroacético

for spectroscopy Uvasol^®

• Sinónimos: TFA
• Fórmula lineal: CF₃COOH
• Número de CAS: 76-05-1
• Peso molecular: 114.02
• Beilstein/REAXYS Number: 742035
• MDL number: MFCD00004169
• UNSPSC Code: 12191502
• EC Index Number: 200-929-3

Propiedades

• vapor density: 3.9 (vs air)
• Quality Level: 100
• vapor pressure: 97.5 mmHg ( 20 °C)
• assay: ≥99.8% (acidimetric)
• form: liquid
• technique(s): UV/Vis spectroscopy: suitable
• impurities: ≤10% Water (Karl Fischer)
• evapn. residue: ≤0.005%
• color: APHA: ≤10
• transmittance: 265 nm, ≥10.0%; 305 nm, ≥50.0%; 320 nm, ≥80.0%; 325 nm, ≥90.0%
• refractive index: n20/D 1.3 (lit.)
• pH: 1 (10 g/L in H₂O)
• bp: 72.4 °C (lit.)
• mp: −15.4 °C (lit.)
• solubility: soluble 10 g/mL
• density: 1.489 g/mL at 20 °C (lit.)
• storage temp.: 2-30°C
• SMILES string: OC(C(F)(F)F)=O
• InChI: 1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)
• InChI key: DTQVDTLACAAQTR-UHFFFAOYSA-N

Descripción

General description

La obtención de resultados analíticos exactos en espectroscopia UV/VIS e infrarrojo depende del uso de disolventes muy puros para la preparación de la muestra. La gama de disolventes Uvasol<TMSYMBOL></TMSYMBOL> se ha diseñado especialmente para espectroscopia y otras aplicaciones que requieren disolventes de la mayor pureza espectral. El proceso de refinamiento permite un mayor grado de seguridad en las aplicaciones y evita interpretaciones erróneas de los resultados analíticos causados por trazas de contaminación UV, IR y de fluorescencia. Los disolventes Uvasol<TMSYMBOL></TMSYMBOL> ofrecen la mejor transmitancia UV. En todas las especificaciones, la transmitancia mínima de 5 longitudes de onda típicas son idénticas.

Application

• Characterization of ribostamycin and its impurities using a nano-quantity analyte detector: This study examines ribostamycin and its impurities using a nano-quantity analyte detector and details a systematic comparison of three different aerosol detectors. The role of trifluoroacetic acid as a mobile phase additive enhances detection sensitivity and analytical precision, making it crucial for accurate impurity profiling and pharmaceutical quality control (Meng et al., 2024).


• Paradigm Shift: Major Role of Ion-Pairing-Dependent Size Exclusion Effects in Bottom-Up Proteomics Reversed-Phase Peptide Separations: This research highlights the critical role of trifluoroacetic acid in modifying the ion-pairing and size exclusion properties of peptides during reversed-phase separations in proteomics. The study provides a deeper understanding of the mechanisms influencing peptide behavior, which is essential for developing more effective analytical techniques (Yeung et al., 2024).


• New fabric phase sorptive extraction for nondestructive analysis of heritage textile samples: This paper introduces a novel fabric phase sorptive extraction method using trifluoroacetic acid among other solvents to analyze heritage textile samples nondestructively. This method demonstrates significant potential in cultural heritage preservation and forensic science by allowing detailed analysis without damaging the original artifacts (Tanasescu et al., 2024).


• Preparation and characterization of stationary phase gradients on C8 liquid chromatography columns: The study discusses the preparation and characterization of stationary phase gradients for chromatography columns, with trifluoroacetic acid used to adjust the pH and ionic strength of the mobile phase. This modification is shown to enhance the chromatographic separation of complex mixtures, proving vital for analytical and preparative scale separations (Cecil et al., 2024).


• Optimization of Cyanocobalamin (Vitamin B(12)) Sorption onto Mesoporous Superparamagnetic Iron Oxide Nanoparticles: This investigation utilizes trifluoroacetic acid in the synthesis and functionalization of nanoparticles for efficient vitamin B(12) sorption. The study explores the implications for targeted drug delivery systems and bioseparation, demonstrating the adaptability and effectiveness of these engineered nanoparticles (Flieger et al., 2024).

Analysis Note

Valoración (acidimétrica): ≥ 99,8 %
Agua (K. F.): ≤ 0,10 %
Número de color (Apha): ≤ 10
Residuos de evaporación: ≤ 0,005 %
Transmitancia UV (a 265 nm): ≥ 10,0 %
Transmitancia UV (a 305 nm): ≥ 50,0 %
Transmitancia UV (a 320 nm): ≥ 80,0 %
Transmitancia UV (desde 325 nm): ≥ 90,0 %

Other Notes

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Legal Information

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

Información de seguridad

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H314 - H332 - H412
• pcodes: P261 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
• Storage Class: 8A - Combustible, corrosive hazardous materials
• wgk_germany: WGK 2
• flash_point_f: 212.0 °F - Pensky-Martens closed cup
• flash_point_c: > 100 °C - Pensky-Martens closed cup