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Thermo Scientific Chemicals
Methyl Yellow, indicator
CAS: 60-11-7 | C14H15N3 | 225.30 g/mol
化学物質識別子
CAS60-11-7
IUPAC NameN,N-dimethyl-4-(2-phenyldiazen-1-yl)aniline
Molecular FormulaC14H15N3
InChI KeyJCYPECIVGRXBMO-UHFFFAOYSA-N
SMILESCN(C)C1=CC=C(C=C1)N=NC1=CC=CC=C1
さらに表示
仕様
スペックシート
スペックシートAppearance (Color)Yellow to orange
FormPowder
Color ChangeRed @ pH 2.9 to yellow @ pH 4.9
Dye Strength95-105%
Identification (FTIR)Conforms
Methyl Yellow used as a pH indicator. It is an acid-base indicator that changes color from below pH 2.9 red to above pH 4.0 yellow and vice versa. Typical use is in the titration of a weak base with a strong acid.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Methyl Yellow used as a pH indicator. It is an acid-base indicator that changes color from below pH 2.9 red to above pH 4.0 yellow and vice versa. Typical use is in the titration of a weak base with a strong acid.
Solubility
Insoluble in water. Soluble in alcohol.
Notes
Transition interval: pH 2.9 (red) to pH 4.0 (yellow)
Methyl Yellow used as a pH indicator. It is an acid-base indicator that changes color from below pH 2.9 red to above pH 4.0 yellow and vice versa. Typical use is in the titration of a weak base with a strong acid.
Solubility
Insoluble in water. Soluble in alcohol.
Notes
Transition interval: pH 2.9 (red) to pH 4.0 (yellow)
RUO – Research Use Only
General References:
- Makoto Nagase.; Yasuhiko Osaki.; Takahiko Matsueda. Determination of methyl yellow, sudan I and sudan II in water by high-performance liquid chromatography. Journal of Chromatography A. 1989, 465 (3), 434-437.
- Ross R. Weikel.; Jason P. Hallett.; Charles L. Liotta.; Charles A. Eckert. Self-Neutralizing in Situ Acid Catalysis for Single-Pot Synthesis of Iodobenzene and Methyl Yellow in CO2-Expanded Methanol. Ind. Eng. Chem. Res. 2007, 46 (16), 5252-5257.