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Lab Chemicals
pH Indicator (Solid)
DIMETHYL YELLOW
DIMETHYL YELLOW pH Indicator grade
C.I.No.11020
p-Dimethylaminoazobenzene, 4-Dimethylaminoazobenzene, N,N-Dimethyl-4-phenylazoaniline, N,N-Dimethyl-4-aminoazobenzene, Butter Yellow, Solvent Yellow 2
Article No.
03430
Grade
pH Indicator grade
Purity
CAS No.
60-11-7
Molecular Formula
C
1
4
H
1
5
N
3
Molecular Weight
225.30
H.S. Code
2927.0090
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
Yellow powder
Melting point/ Freezing point [°C]
111 °C
Packings
25 g
(00025)
100 g
(00100)
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 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
Revision Date :
07-Jun-2019