1.06794

3-Nitrophenol

pH indicator

• Synonym(s): 3-Nitrophenol, m-Nitrophenol
• Empirical Formula (Hill Notation): C₆H₅NO₃
• CAS Number: 554-84-7
• Molecular Weight: 139.11
• MDL number: MFCD00007240
• UNSPSC Code: 12352104
• EC Index Number: 209-073-5
• NACRES: NA.21

Properties

• product name: 3-Nitrophenol, indicator
• Quality Level: 200
• Assay: ≥98% (DSC (differential scanning calorimetry))
• form: solid
• autoignition temp.: 400 °C
• potency: 328 mg/kg LD₅₀, oral (Rat)
• pH: 6.6-8.6 (20 °C in H₂O)
• bp: 194 °C/93 hPa
• mp: 95-98 °C
• transition temp: flash point >100 °C
• solubility: insoluble 13.5 g/L
• density: 1.49 g/cm³ at 20 °C
• bulk density: 640 kg/m³
• λmax: 329-333 nm (buffer pH 6.6); 389-393 nm (buffer pH 11.0)
• storage temp.: 2-30°C
• InChI: 1S/C6H5NO3/c8-6-3-1-2-5(4-6)7(9)10/h1-4,8H
• InChI key: RTZZCYNQPHTPPL-UHFFFAOYSA-N

Description

Analysis Note

Purity (DSC (differential scanning calorimetry)): ≥ 98 %
Identity (UV/VIS-Spectrum): passes test
Melting point (DSC (differential scanning calorimetry)): 94 - 98 °C
Transition range: pH 6.6 - pH 8.6colourless - yellow
Absorption maximum λ_max. (buffer pH 6.6): 329 - 333 nm
Absorption maximum λ_max. (buffer pH 11.0): 389 - 393 nm
Spec. Absorptivity A 1%/1cm (λ1_max; 0.05 g/l; buffer pH 6.6): 130 - 150
Spec. Absorptivity A 1%/1cm (λ2_max; 0.05 g/l; buffer pH 11.0): 100 - 120

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302 - H315 - H318
• Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3