1.08262

三氟乙酸

for spectroscopy Uvasol^®

• 别名: TFA
• 线性分子式: CF₃COOH
• CAS号: 76-05-1
• 分子量: 114.02
• Beilstein: 742035
• MDL號碼: MFCD00004169
• 分類程式碼代碼: 12191502
• 酶委員會索引編號: 200-929-3
• NACRES: NA.03

属性

• 蒸汽密度: 3.9 (vs air)
• 品質等級: 100
• 蒸汽壓力: 97.5 mmHg ( 20 °C)
• 化驗: ≥99.8% (acidimetric)
• 形狀: liquid
• 技術: UV/Vis spectroscopy: suitable
• 雜質: ≤10% Water (Karl Fischer)
• 蒸發殘留物: ≤0.005%
• 顏色: APHA: ≤10
• 透射率: 265 nm, ≥10.0%; 305 nm, ≥50.0%; 320 nm, ≥80.0%; 325 nm, ≥90.0%
• 折射率: n20/D 1.3 (lit.)
• pH值: 1 (10 g/L in H₂O)
• bp: 72.4 °C (lit.)
• mp: −15.4 °C (lit.)
• 溶解度: soluble 10 g/mL
• 密度: 1.489 g/mL at 20 °C (lit.)
• 儲存溫度: 2-30°C
• SMILES 字串: OC(C(F)(F)F)=O
• InChI: 1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)
• InChI 密鑰: DTQVDTLACAAQTR-UHFFFAOYSA-N

说明

一般說明

UV/VIS 和红外光谱中分析结果的准确性取决于是否使用非常纯的溶剂进行样品制备。Uvasol<TMSYMBOL></TMSYMBOL> 系列是特别被计为用于光谱学和其它需要最高光学纯度化学物质的应用领域。精制过程使得应用更加安全并避免由痕量 UV（紫外线）、IR（红外线）和荧光污染引起对分析结果的错误判断。Uvasol<TMSYMBOL></TMSYMBOL> 溶剂可提供最佳的紫外线透射率。在所有规范中，均确定了 5 种典型波长的最小透射率。

應用

• 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).

分析報告

含量（酸度）： ≥ 99.8 %
水（K.F.）： ≤ 0.10 %
色号（Apha）： ≤ 10
蒸发残留物： ≤ 0.005 %
透射率（265 nm处）： ≥ 10.0 %
透射率（305 nm处）： ≥ 50.0 %
透射率（320 nm处）： ≥ 80.0 %
透射率（从325起 nm开始）： ≥ 90.0 %

其他說明

欢迎探索各式各样的实验室安全配件和设备，以安全操作溶剂，在首次使用时就能获得较高的安全水平。

法律資訊

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

安全信息

• 象形圖: GHS05,GHS07
• 訊號詞: Danger
• 危險聲明: H314 - H332 - H412
• 防範說明: P261 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
• 儲存類別代碼: 8A - Combustible, corrosive hazardous materials
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: 212.0 °F - Pensky-Martens closed cup
• 閃點（°C）: > 100 °C - Pensky-Martens closed cup