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Lab Chemicals
pH Indicator (Solid)
METHYL RED SODIUM SALT
METHYL RED SODIUM SALT
C.I.No.13020
4-Dimethylaminoazobenzene-2'-carboxylic acid sodium salt, Acid Red 2
Article No.
4675B
Grade
Purity
CAS No.
845-10-3
Molecular Formula
C
1
5
H
1
4
N
3
NaO
2
Molecular Weight
291.29
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
Dark red powder
Odour
Odorless
Melting point/ Freezing point [°C]
180.5°C
Solubility in water [% weight]
Soluble in water
Packings
25 g
(00025)
1000 g
(01000)
Specifications
Appearance
Orange to Red color Powder
pH transition range (4.5 - 6.2)
Pink - Yellow
Appearance of solution
Passes test
Loss on drying (at 110°C)
Max 5%
Revision Date :
23-Apr-2016