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Thermo Scientific Chemicals Methyl Yellow, indicator
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.
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)
Specifications
Melting Point
110°C to 112°C (decomposition)
Odor
Odorless
Quantity
25 g
UN Number
UN2811
Beilstein
746016
Merck Index
14,3229
Solubility Information
Insoluble in water; Soluble in alcohol.
IUPAC Name
N,N-dimethyl-4-phenyldiazenylaniline
Formula Weight
225.3
Chemical Name or Material
Methyl Yellow, indicator
Hazard Category
H301-H350
Hazard Statement
GHS H Statement
H301-H351
Toxic if swallowed.
Suspected of causing cancer.
Precautionary Statement
P201-P202-P264b-P270-P281-P301+P310-P308+P313-P330-P501c
DOTInformation
Transport Hazard Class: 6.1; Packing Group: III; Proper Shipping Name: TOXIC SOLIDS, ORGANIC, N.O.S.
EINECSNumber
200-455-7
RTECSNumber
BX7350000
TSCA
Yes
Recommended Storage
Ambient temperatures
RUO – Research Use Only
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