Methyl Orange

Details:

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