Log in | Join Free | china | japan | germany
ChemicalBook > Product Catalog >Biochemical Engineering >Biochemical Reagents >Acid-base indicator >2,5-DINITROPHENOL

2,5-DINITROPHENOL

2,5-DINITROPHENOL Basic information
Product Name:2,5-DINITROPHENOL
Synonyms:2,5-Dinitrofenol;2,5-dinitro-pheno;2,5-Dnp;2,5-Dinitrophenol (wetted with ca. 20% Water) (unit weight on dry weight basis);2,5-Dinitrophenol ( betta );gamma-dinitro-pheno;Phenol, 2,5-dinitro-;Phenol, gamma-dinitro-
CAS:329-71-5
MF:C6H4N2O5
MW:184.11
EINECS:206-348-1
Product Categories:Analytical Reagents;Analytical/Chromatography;Building Blocks;C6 to C8;Chemical Synthesis;Indicators;Organic Building Blocks;Oxygen Compounds;Phenols;Titration;Analytical Chemistry;Indicator (pH);pH Indicators;pH Indicators - Solids;Nitro
Mol File:329-71-5.mol
2,5-DINITROPHENOL Structure
2,5-DINITROPHENOL Chemical 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
pka5.21, 5.1, 5.0(at 25℃)
form Solid
color Yellowish needles
PH Range4(colourless)-5.8(yellow)
Merck 14,3281
BRN 1913411
Stability:Light Sensitive
Major ApplicationLiquid crystal films, electrophotographic materials, adhesives, inks, lubricants, preservation of cut flowers, food storage, materials for evaluating dental cariesactivity
CAS DataBase Reference329-71-5(CAS DataBase Reference)
EPA Substance Registry System2,5-Dinitrophenol (329-71-5)
Safety Information
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
Hazardous Substances Data329-71-5(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
2,5-DINITROPHENOL Usage And Synthesis
Chemical PropertiesYellow needles, flammable. Soluble in ether, benzene, hot water, and ethanol.
Uses2,5-Dinitrophenol (wetted with ca. 20% Water) (unit weight on dry weight basis) is a useful reagent for the preparation of yttrium nitrophenolate aminebis(benzotriazolylphenolate) complexes.
DefinitionChEBI: 2,5-dinitrophenol is a dinitrophenol having the nitro groups at the 2- and 5-positions.
General DescriptionYellow crystalline solid with a sweet musty odor. Sinks and mixes slowly with water.
Air & Water ReactionsSlowly mixes with water.
Reactivity Profile2,5-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 HazardINHALATION, 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 MethodsCrystallise 2,5-dinitrophenol from H2O with a little EtOH. [Beilstein 6 IV 1383.]
2,5-DINITROPHENOL Preparation Products And Raw materials
Raw materials3-Nitrophenol
Tag:2,5-DINITROPHENOL(329-71-5) Related Product Information
5-METHOXY-2,4-DINITROPHENOL 4-CHLORO-2,6-DINITROPHENOL 2-Amino-4,6-dinitrophenol, wetted with not less than 20% water 2-Methyl-4,6-dinitrophenol solution,2-Methyl-4,6-dinitrophenol, 3,5-Dinitro-2-hydroxytoluene, 4,6-Dinitro-2-methylphenol, 4,6-Dinitro-o-cresol, DNOC 2,3,6-TRINITROPHENOL 2,5-DINITROPHENOL Dinitrophenol,dry or wetted with less than 15% water,by mass 4-FLUORO-2,6-DINITROPHENOL 97% Sodium 2,4-dinitrophenate 2,4-Dinitrophenol 4-TERT-BUTYL-2,6-DINITROPHENOL 97%,4-TERT-BUTYL-2,6-DINITROPHENOL 99+% MEDINOTERB ACETATE dinoterb (ISO) 2-tert-butyl-4,6-dinitrophenol,Dinoterb: (2-(1,1-Dimethylethyl)-4,6-dinitrophenol) 2-Chlor-4,6-dinitrophenol 2,4-DINITROPHENOL stibilised with 30-35% water Din0l Sodium picramate 2,6-Dinitrophenol, 97%, stab. with ca 20% water,2,6-Dinitrophenol (wetted with ca. 20% Water, containing 5g on a dry weight basis),Dinitrophenol, 2,6-