DIMETHYL YELLOW
DIMETHYL YELLOW pH Indicator grade
C.I.No.11020
Short Name: DIMETHYL YELLOW
Synonym: p-Dimethylaminoazobenzene, 4-Dimethylaminoazobenzene, N,N-Dimethyl-4-phenylazoaniline, N,N-Dimethyl-4-aminoazobenzene, Butter Yellow, Solvent Yellow 2
Basic Details
Article No.
LG1887
Grade
pH Indicator grade
Purity
CAS No.
60-11-7
HS Code
2927.0090
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Yellow powder
Melting point/ Freezing point [°C]
111 °C
Chemical Specifications
Appearance
Yellow to orange brown powder
Melting point
110 - 116°C
Transition range pH 2.9 to pH 4.0
Red to yellow
Appearance of solution
0.1% solution in ethanol is clear
Absorption maxima in ethanol
403 - 407 nm
Specific absorptivity A 1%/1cm (λmax; 0.005%; ethanol; calculated on dried substance)
1100 - 1300
Loss on drying (40°C; 1 hpa)
Max. 5.0%
Safety Information & 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