1.06798

4-Nitrophenol

pH indicator

• Synonym(s): 4-Nitrophenol, p-Nitrophenol, 1-Hydroxy-4-nitrobenzol
• Empirical Formula (Hill Notation): C₆H₅NO₃
• CAS Number: 100-02-7
• Molecular Weight: 139.11
• MDL number: MFCD00007331
• UNSPSC Code: 12352104
• EC Index Number: 202-811-7
• NACRES: NA.21

Properties

• product name: 4-Nitrophenol, indicator
• Quality Level: 200
• autoignition temp.: 510 °C
• potency: 1024 mg/kg LD₅₀, skin (Rat)
• pH: 4.4 (24 °C, 5 g/L in H₂O)
• bp: 279 °C/1013 hPa (decomposition)
• mp: 110-114 °C
• transition temp: flash point 169 °C
• solubility: 14.8 g/L
• density: 1.48 g/cm³ at 20 °C
• bulk density: 550 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H
• InChI key: BTJIUGUIPKRLHP-UHFFFAOYSA-N

Description

Application

• Controlled Glycolysis of Poly(ethylene terephthalate): Research shows that using Antimony(III) Oxide for controlled glycolysis of PET under microwave irradiation results in well-defined oligomers, demonstrating its potential for effective polymer degradation (Mohammadi et al., 2023).

Analysis Note

Assay (DSC (differential scanning calorimetry)): ≥ 99.5 %
Transition range: pH 5.4 - pH 7.5colourless - yellow
Appearance of solution: passes test
Melting point (DSC (differential scanning calorimetry)): 110 - 114 °C

Safety Information

• Pictograms: GHS07,GHS08
• Signal Word: Warning
• Hazard Statements: H302 + H312 + H332 - H373
• Precautionary Statements: P260 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312 - P314
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Oral
• Storage Class Code: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 2
• Flash Point(F): 336.2 °F - closed cup
• Flash Point(C): 169.0 °C - closed cup