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Merck

1.06798

4-Nitrophenol

pH indicator

Synonym(s):

4-Nitrophenol, p-Nitrophenol, 1-Hydroxy-4-nitrobenzol

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About This Item

Empirical Formula (Hill Notation):
C6H5NO3
CAS Number:
Molecular Weight:
139.11
UNSPSC Code:
12352104
EC Index Number:
202-811-7
NACRES:
NA.21
MDL number:
Technical Service
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Product Name

4-Nitrophenol, indicator

Quality Level

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

SMILES string

[N+](=O)([O-])c1ccc(cc1)O

InChI

1S/C6H5NO3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H

InChI key

BTJIUGUIPKRLHP-UHFFFAOYSA-N

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


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signalword

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Oral

wgk

WGK 2

flash_point_f

336.2 °F - closed cup

flash_point_c

169.0 °C - closed cup

target_organs

Kidney,Liver

pictograms

Health hazardExclamation mark

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

1067980000: + 1067980025: + 1067980100:

jan

Group 5: Self-reactive substances + Nitro compounds + Hazardous rank II + 2nd self-reactive materials

fsl



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