Biochem Chemopharma

TECHNICAL DATA SHEET

2,4-DINITROPHENOL INDICATOR AR
a-Dinitrophenol, 2,4-DNP, DNP

Article No. 516350025 Molecular Formula C6H4N2O5
H.S. Code 2908.9990 Molecular Weight 184.11
CAS No. 51-28-5
 

Physical Properties

Physical state at 20 °C Solid
Colour Yellow powder
Odour Sweet, musty
Melting point/ Freezing point [°C] 108 - 112 °C
Vapour density 6.35
Density [g/cm3] 1.683
Solubility in water [% weight] Partially soluble in water
 

Specifications

Assay Min. 99 %
Melting point (after drying) 110 - 113°C
pH transition range 2.8 - 4.0 Slightly greenish yellow to greenish yellow
Water (H2O) About 30 %
Appearance Yellow colored powder
 

Safety Information and Hazard Symbols

Skull and Crossbones Health Hazard Environment
Symbol GHS06, GHS08, GHS09
Signal Word Danger
UN No 1320
IMCO Class No. 4.1,6.1
Hazardous Statement H300-H311+H331-H400- H372
Precaution Statement P264-P271-P280-P301+P310-P302+P352-P304+P340-P403+P233-P501
Packing Group I