| Identification | More | [Name]
2,5-DINITROPHENOL | [CAS]
329-71-5 | [Synonyms]
2,5-DINITROPHENOL
γ-Dinitrophenol
GAMMA-DINITROPHENOL
2,5-Dinitrofenol
2,5-dinitro-pheno
2,5-Dnp
gamma-dinitro-pheno
Phenol, 2,5-dinitro-
Phenol, gamma-dinitro-
2,5-DINITROPHENOL PESTANAL, WITH 0,5 ML
2 5-DINITROPHENOL MOISTENED WITH WATER &
2 5-DINITROPHENOL INDICATOR &
PARA-DINITROPHENOL
2,5-DINITROPHENOL (0.1% IN CA. 50% ETHANOL)[FOR PH DETERMINATION]
2,5-DINITROPHENOL (WETTED WITH CA. 20% WATER, CONTAINING 5G ON A DRY WEIGHT BASIS) 99+%
2,5-DINITROPHENOL (0.1% IN CA. 50% ETHANOL)[FOR TITRATION]
2,5-Dinitrophenol (wetted with ca. 20% Water, containing 5g on a dry weight basis)
p-Dinitrophenol | [EINECS(EC#)]
206-348-1 | [Molecular Formula]
C6H4N2O5 | [MDL Number]
MFCD00007108 | [Molecular Weight]
184.11 | [MOL File]
329-71-5.mol |
| Chemical Properties | Back Directory | [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 ]
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) | [EPA Substance Registry System]
2,5-Dinitrophenol (329-71-5) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R33:Danger of cumulative effects.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S37:Wear suitable gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 1320 4.1/PG 1
| [WGK Germany ]
3
| [RTECS ]
SL2900000
| [HazardClass ]
4.1 | [PackingGroup ]
I | [HS Code ]
29089990 | [Hazardous Substances Data]
329-71-5(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Yellow crystalline solid with a sweet musty odor. Sinks and mixes slowly with water. | [Reactivity Profile]
2,5-DINITROPHENOL(329-71-5) 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. | [Air & Water Reactions]
Slowly mixes with water. | [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. | [Chemical Properties]
Yellow needles, flammable. Soluble in ether, benzene, hot water, and ethanol. | [Definition]
ChEBI: 2,5-dinitrophenol is a dinitrophenol having the nitro groups at the 2- and 5-positions. | [Purification Methods]
Crystallise 2,5-dinitrophenol from H2O with a little EtOH. [Beilstein 6 IV 1383.] |
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