Appearance:Yellow-Orange Powder/Solid
Throughput:100|Kilogram|Month
pd_productuse:reagent
Delivery Time:large stock
Purity:99% purity
Methyl Orange Chemical Properties
Melting point 300 °C
density 0.987 g/mL at 25 °C
Fp 37 °C
storage temp. Store at RT.
solubility 5g/l
Colour Index 13025
form Powder/Solid
pka 3.4(at 25℃)
color Yellow-Orange
Specific Gravity 0.987
Odor Odorless
PH 6.5 (5g/l, H2O, 20℃)
PH Range 3.1(Red)-4.4(Orange)
Water Solubility Soluble in ethanol. Partially soluble in hot water. Slightly soluble in cold water and pyrimidine. Insoluble in ether and alcohol.
λmax 507nm, 522nm, 464nm
Merck 14,6105
BRN 4732884
Stability: Stable. Incompatible with strong oxidizing agents.
Major Application Liquid crystals, thin films, sensors, sol-gel matrix, waveguides, host-guest chemistry, display device, corrosion inhibitor, glass coatings, paints, wound dressing materials, pharmaceuticals, dental materials, measuring nucleic acid
Biological Applications Detecting microorganisms; treating dermatological diseases,vaginal affections; dental materials; wound dressing materials
CAS DataBase Reference 547-58-0
EPA Substance Registry System Methyl orange (547-58-0)
Safety Information
Hazard Codes T
Risk Statements 25-10
Safety Statements 45-24/25-16-36/37/39
RIDADR UN 3143 6.1/PG 3
WGK Germany 3
RTECS DB6327000
TSCA Yes
HazardClass 6.1
PackingGroup III
HS Code 29270000
Hazardous Substances Data 547-58-0(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 60 mg/kg
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