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ChemicalBook >> CAS DataBase List >>2,5-DINITROPHENOL

2,5-DINITROPHENOL suppliers

2,5-DINITROPHENOL

CAS:
329-71-5
MF:
C6H4N2O5
MW:
184.11

Properties

Melting point:
103-106 °C(lit.)
Boiling point:
318.03°C (rough estimate)
Density 
1.7195 (rough estimate)
refractive index 
1.4738 (estimate)
solubility 
Solubility Sparingly soluble in water; soluble in ethanol, ether
pka
5.21, 5.1, 5.0(at 25℃)
form 
Solid
color 
Yellowish needles
PH Range
4(colourless)-5.8(yellow)
Merck 
14,3281
BRN 
1913411
Stability:
Light Sensitive
Major Application
Liquid crystal films, electrophotographic materials, adhesives, inks, lubricants, preservation of cut flowers, food storage, materials for evaluating dental cariesactivity

Safety Information

Symbol(GHS) 
GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS06,GHS08,GHS09
Signal word 
Danger
Hazard statements 
H228-H300+H310+H330-H301-H311-H331-H373-H411
Precautionary statements 
P261-P273-P280-P301+P310-P311-P210-P240-P241-P260-P262-P264-P270-P271-P284-P301+P310+P330-P302+P352+P310+P361+P364-P304+P340+P310-P391-P403+P233-P405-P501
Hazard Codes 
T,N
Risk Statements 
23/24/25-33-51/53
Safety Statements 
28-37-45-61
RIDADR 
UN 1320 4.1/PG 1
WGK Germany 
3
RTECS 
SL2900000
HazardClass 
4.1
PackingGroup 
I
HS Code 
29089990

Use

2,5-DINITROPHENOL can detonate or explode when heated under confinement [USCG, 1999]. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Instead, they react as weak organic acids. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has Ka = 1.3 x 10^[-10]). These materials are incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides. Flammable gas (H2) is often generated, and the heat of the reaction may ignite the gas. Heat is also generated by the acid-base reaction between phenols and bases.

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