DIMETHYL YELLOW (pH INDICATOR) (C.I. NO. 11020)

DIMETHYL YELLOW (pH INDICATOR) (C.I. NO. 11020)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
D0086500025 pH Indicator 60-11-7 C14H15N3 225.30 2927.0090
60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Yellow powder

Melting Point/ Freezing point [°C]

111 °C

Specifications

Appearance:

 Yellow powder

Appearance of solution:

 0.1% solution in ethanol is clear

Transition range pH 2.9 to pH 4.0:

 Red to yellow

Absorption maxima in ethanol:

 403 - 407 nm

Loss on drying (40°C; 1 hpa):

 Max. 5.0%

Specific absorptivity A 1%/1cm (lmax; 0.005%; ethanol; calculated on dried substance):

 1100 - 1300

Melting point:

 110 - 116°C

Safety Information and Hazard Symbols

Symbol: GHS06, GHS08
Signal Word: Danger
UN No.: 2811
IMCO Class No.: 6.1
Packing Group: III
Hazardous Statement: H301-H351
Precaution Statement: P281-P301 + P310
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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