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2,5-DINITROPHENOL

2,5-DINITROPHENOL
2,5-DINITROPHENOL structure
CAS No.
329-71-5
Chemical Name:
2,5-DINITROPHENOL
Synonyms
2,5-Dnp;Nsc 90441;γ-Dinitrophenol;p-Dinitrophenol;2,5-Dinitrofenol;2,5-dinitro-pheno;2,5-DINITROPHENOL;PARA-DINITROPHENOL;gamma-dinitro-pheno;GAMMA-DINITROPHENOL
CBNumber:
CB6389758
Molecular Formula:
C6H4N2O5
Formula Weight:
184.11
MOL File:
329-71-5.mol

2,5-DINITROPHENOL 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℃)
color 
Yellowish needles
PH Range
4(colourless)-5.8(yellow)
Merck 
14,3281
BRN 
1913411
Major Application
Liquid crystal films, electrophotographic materials, adhesives, inks, lubricants, preservation of cut flowers, food storage, materials for evaluating dental cariesactivity
CAS DataBase Reference
329-71-5(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
HSD25Q268Z
EPA Substance Registry System
2,5-Dinitrophenol (329-71-5)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
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

2,5-DINITROPHENOL price More Price(3)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D198609 2,5-Dinitrophenol 97% 329-71-5 1g $68.7 2021-12-16 Buy
TRC D494358 2,5-Dinitrophenol(wettedwith~20%Water) 329-71-5 500mg $70 2021-12-16 Buy
AHH MT-11179 2,5-Dinitrophenol 98% 329-71-5 25g $502 2021-12-16 Buy

2,5-DINITROPHENOL Chemical Properties,Uses,Production

Chemical Properties

Yellow needles, flammable. Soluble in ether, benzene, hot water, and ethanol.

General Description

Yellow crystalline solid with a sweet musty odor. Sinks and mixes slowly with water.

Air & Water Reactions

Slowly mixes with water.

Reactivity Profile

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.

Health Hazard

INHALATION, INGESTION OR SKIN ABSORPTION: Fatigue, thirst, sweating, flushing of face, nausea, vomiting, abdominal pain, diarrhea; restlessness, anxiety, excitement occasionaly leading to convulsions; fever, tachycardia, labored respiration, cyanosis, and sometimes muscle cramps. Loss of consciousness, cessation of breathing and death. EYES: Causes dilation of pupils or posterior subcapsular opacities or cataracts. SKIN: Discoloration, irritation, and dermatitis.

Purification Methods

Crystallise 2,5-dinitrophenol from H2O with a little EtOH. [Beilstein 6 IV 1383.]

2,5-DINITROPHENOL Preparation Products And Raw materials

Raw materials

Preparation Products


2,5-DINITROPHENOL Spectrum


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