Appearance:White to yellow or beige, darkening on exposure to light solid
Throughput:100|Kilogram|Month
pd_productuse:reagent
Delivery Time:large stock
Purity:99% purity
Methyl Red sodium salt Chemical Properties
Melting point 178-182 °C
Boiling point 64.7 °C
density 0.791
Fp 12 °C
storage temp. Store at RT.
solubility H2O: soluble
form Solid
pka 2.3, 5.0(at 25℃)
Colour Index 13020
color White to yellow or beige, darkening on exposure to light
Odor Odorless
PH 8.2 (10g/l, H2O, 25℃)
PH Range Red (1.2) to orange (3.4);Red (4.2) to yellow (6.3)
Water Solubility Soluble in water. Slightly soluble in ethanol.
λmax 437nm, 410nm, 493nm
BRN 4065488
Stability: Stability Reported to be unstable, but this is probably a mistake on a commercial MSDS sheet. Incompatible with strong oxidizing agents.
Major Application optical fibers, liquid crystal cells, holography, inks, toner, corrosion inhibitor, detergent
CAS DataBase Reference 845-10-3(CAS DataBase Reference)
EPA Substance Registry System Benzoic acid, 2-[[4-(dimethylamino)phenyl]azo]-, sodium salt (845-10-3)
Safety Information
Hazard Codes Xn,C,F
Risk Statements 40-34-11
Safety Statements 36/37-24/25-45-36/37/39-26-16
RIDADR UN 1170 3/PG 2
WGK Germany 3
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29270000
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