Natrium-4-(2,4-dihydroxyphenyl-azo)benzolsulfonat
Bezeichnung:Natrium-4-(2,4-dihydroxyphenyl-azo)benzolsulfonat
CAS-Nr547-58-0
Englisch Name:Methyl Orange
CBNumberCB2264381
SummenformelC14H14N3NaO3S
Molgewicht327.33
MOL-Datei547-58-0.mol
Synonyma
Natrium-4-(4-dimethylaminophenylazo)benzolsulfonat
Natrium-4-(2,4-dihydroxyphenyl-azo)benzolsulfonat
Natrium-4-(2,4-dihydroxyphenyl-azo)benzolsulfonat physikalisch-chemischer Eigenschaften
| Schmelzpunkt | 300 °C |
| Dichte | 0.987 g/mL at 25 °C |
| Flammpunkt | 37 °C |
| storage temp. | Store at +5°C to +30°C. |
| Löslichkeit | 5g/l |
| Colour Index | 13025 |
| Aggregatzustand | Powder/Solid |
| pka | 3.4(at 25℃) |
| Wichte | 0.987 |
| Farbe | Yellow-Orange |
| PH | 6.5 (5g/l, H2O, 20℃) |
| Geruch (Odor) | Odorless |
| Säure-Base-Indikators(pH-Indikatoren) | 3.1(Red)-4.4(Orange) |
| Wasserlöslichkeit | Soluble in ethanol. Partially soluble in hot water. Slightly soluble in cold water and pyrimidine. Insoluble in ether and alcohol. |
| maximale Wellenlänge (λmax) | 507nm, 522nm, 464nm |
| Merck | 14,6105 |
| BRN | 4732884 |
| Stabilität | Stable. Incompatible with strong oxidizing agents. |
| Kennzeichnung gefährlicher | T |
| R-Sätze: | 25-10 |
| S-Sätze: | 45-24/25-16-36/37/39 |
| RIDADR | UN 3143 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS-Nr. | DB6327000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29270000 |
| Giftige Stoffe Daten | 547-58-0(Hazardous Substances Data) |
| Toxizität | LD50 orally in Rabbit: 60 mg/kg |
