α-NAPHTHOL PHTHALEIN (pH INDICATOR) (1-NAPHTHOL PHTHALEIN)

α-NAPHTHOL PHTHALEIN (pH INDICATOR) (1-NAPHTHOL PHTHALEIN) α-NAPHTHOL PHTHALEIN (pH INDICATOR) (1-NAPHTHOL PHTHALEIN)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
N0140700005 pH Indicator 596-01-0 C28H18O4 418.45 3204.9000
12 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Black powder

Odour

Characteristic odour

Melting Point/ Freezing point [°C]

238 - 240 °C

Partition coefficient Log Pow octanol / water at 20°C

5.41

Vapour density

14.44

Solubility in water [% weight]

Insoluble in water

Specifications

Appearance:

 Light Pink to Beige to Red-Brown Powder

Loss on drying (at 105°C) :

 Max 5%

Absorption maxima (Buffer pH 7.1):

 471 - 485 nm

Absorption maxima (buffer pH 8.3):

 649 - 654 nm

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

SUVCHEM
MAKE IN INDIA

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