3-NITROPHENOL (pH-INDICATOR) (M-NITROPHENOL)

3-NITROPHENOL (pH-INDICATOR) (M-NITROPHENOL)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
N0148000100 AR 99% 554-84-7 C6H5NO3 139.11 2908.9990
60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Yellow

Melting Point/ Freezing point [°C]

97°C

Density [g/cm3]

1.48

Viscosity at 40°C [mm2/s]

Slight (0.1-1%)

Solubility in water [% weight]

Slight (0.1-1%)

Specifications

Appearance:

 Brownish yellow coloured powder

Assay (acidimetric):

 Min 99%

Absorption maxima (buffer pH 11.0):

 389 - 393 nm

Absorption maxima (buffer pH 6.6):

 329 - 333 nm

pH 6.6 - 8.6:

 Colourless to yellow-orange

Specific absorptivity A1%/1cm (lmax; 0.05 g/L; buffer pH 11.0):

 100 - 120

Specific absorptivity A1%/1cm (lmax; 0.05 g/L; buffer pH 6.6):

 130 - 150

Melting point:

 95 - 99 deg C

Safety Information and Hazard Symbols

Symbol: GHS05, GHS07
Signal Word: Danger
UN No.: 1663
IMCO Class No.: 6.1
Packing Group: III
Hazardous Statement: H302-H315-H318
Precaution Statement: P280-P305 + P351 + P338
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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